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A corpus of 963 images belonging to Near-Eastern seals of the Uruk/Jamdet Nasr period (late fourth Millennium BC) was analysed and classified through multivariate analysis techniques, applied on both presence/absence of iconographical elements and a text describing each image. Methods and results are discussed and compared. The presence/absence analysis is the most effective in dividing the corpus into different groups of images (scenes with common animals, “special” animals such as hybrids, war, religious, complex handicraft and schematic handicraft scenes). The results of textual analysis are similar in many respects, though here common features between different groups of seals are underscored. Textual analysis also seems a promising approach for the study of syntactical patterning of the seal images. The study of repeated segments (i.e. fixed sequences of lexical forms occurring in different texts) proved the existence of fixed sun-patterns, consisting of two or more elements and attitudes, which occur in images belonging both to the same group of seals and to different ones. Fixed sun-patterns tend, however, to occur more frequently on images characterized by a simple and repetitive structure, whereas they are only rarely used in the most complex seals. Finally, results of both analyses effectively proved that the iconography of the seals is related to their origin and function. Religious scenes and representations of hybrids, snakes, birds and lions generally occur on seals or sealings found in temple contexts, often on sealings fastening movable containers or storeroom doors; war scenes are apparently found only in urban centres. Complex handicraft scenes tend to be found in storeroom or in domestic contexts, often on “clay balls” (sort of primitive administrative documents). Finally, schematic images generally occur in domestic, non-official context. Schematic seals were apparently rarely used for sealing; most of their images derive from original seals and not from impressions. On the other hand, religious scenes seem especially typical of southern Mesopotamia, complex handicraft scenes of Iran and Syria, whereas identical schematic seals are found in all geographical areas. Further developments of the methods tested on the seal corpus (firstly through a deeper interaction with repeated segments analysis; secondly through development of methods for the analysis of the general image composition and finally through an integrated approach considering all aspects together) may lead to interesting results for the study not only of the seals themselves, but in general of structured images of different kinds.
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The aim of this paper consists in analysing family-structure in a Roman community (Ariminum) using epigraphical data. Patriarchal extended family (typical of Mediterranean area) was absent in Roman age and besides we note the presence of nuclear family. Ariminenses had few children. It depends on several factors; for instance, on a high death-rate at birth, on a temporary situation of sterility in consequence of prolonged nursing, birth-control, food, living standards. Death-rate is high in the age-band 16-30 years, but only 10% of the documents contain biometric data, whose presence is closely related to the reader's emotions it could stir up.
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Three different scripts, Hieroglyphic, Linear A and Linear B are attestated in the Aegean between 2200 and 1200 BC The first two of these scripts, Hieroglyphic and Linear A are still undeciphered. The best possibilities of decipherment seem to be linked with Linear A, a script which is very near to the Linear B deciphered by M. Ventris in 1952. In fact more than 80% of the syllabic signs of Linear A are common to Linear B.A systematic comparison between the position of each sign common to Linear A and Linear B will probably give us the possibility to improve the phonetic value of the Linear A signs and so permit to read Linear A. Such a work can only be done with the assistance of the computer.
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In this paper it is suggested that least squares approximation can be used to analyse and to produce computer images of the entasis of Greek Doric columns. The curve fitting method is then applied in a case study on the peristyle column of the temple of Athena Alea at Tegea. By analysing the shaft profile of the different drum combinations it is possible to give the most likely range for the column height.
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In order to analyse a corpus of 963 Near-Eastern Uruk/Jemdet Nasr period sealings, three levels of image structure were identified, as being a) the presence of iconographic elements, b) the presence of subpattern, i.e. small images contributing as a whole to the total image, and c) the general image pattern, considered only under the syntactical point of view. This paper is based on second level analyses, performed through textual exploratory analysis of a formalized text describing the sealings images. Two different textual correspondence analyses were performed: the first on textual forms and the second on repeated segments, i.e. repeated sequences of forms considered as a whole. In the paper, the quality of results is discussed, in particular comparing them to classical techniques based on manual coding and to a previous coding. In this case, a better distinction of different sealings groups resulted from forms analysis, whereas the one on repeated segments, although repeating the forms analysis general pattern, seems less satisfactory. Both results suggest to modify the automatic procedures used so far, in order to limit attention to presence/absence of forms on one side and to select manually the repeated segments actually corresponding to a subpattern, rather than considering all of them.
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This article presents the first results of a statistical analysis applied to the ceramic artifacts from the Late Bronze Age settlement of Sorgenti della Nova (Farnese, Viterbo). After organising the data in a logical structure of relationships, with the setting up of a classification code and automatic processing, various methods of descriptive and multivaried analysis were applied (Frequency Analysis, Crosstabulation, Cluster Analysis). The main objective was the reconstruction of as great a number of shapes from fragments as possible, consequently observing the distribution dynamics of these within the site. The analysis enabled us to increase the possibility of recognising the ceramic forms by roughly 25%. It allowed us also to observe how, even within a situation of substantial uniformity in the site, a distinct separation emerges in certain structures, including, among other factors, the material culture, such as for example, the oval huts with foundations on channels, the grotto-sanctuary 7 and the monumental structure in sector Vb.
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The ceramic assemblage described in this paper, coming from the Conelle di Arcevia Copper Age ditch, can be divided into four phases. This substantial assemblage (almost 10,000 diagnostic items) allowed us to undertake quantitative analysis. A first step in creating a database is to define the underlying criteria: it is a truism to say that the selected parameters condition the results of the analysis. It seemed to us impracticable to elaborate an automatic classification being able to take into consideration the recognition of the patterns socially accepted by a specific human group. At risk of a higher degree of subjectivity, we choose to create an intuitive typology concerning shapes, decorative techniques and motifs, handles and raw materials/surface treatments. We tried examining the behaviour of each feature and their association, aiming to understand the synchronic and diachronic levels of variability in the ceramic production; moreover our purpose was to discern the international/ stochastic value of each association of features by simple statistical techniques.
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This work studies a sample of 58 notched pieces formed by all the examples found in surface sites from a small area of the Cantabrian coast (Northern Spain). These sites are the result of three kinds of activity: a) the exploitation of coastal resources; b) the manufacture of artifacts used in this exploitation; c) the working of flint nodules from local limestone. The results of data gathered were organised in a database and a classic statistical analysis was carried out using the package SPSS. After the application of different tests - correspondence, factor and cluster analysis - a classification in four groups based on morphological variables was chosen as the most significant. In the functional analysis a basic traceologic study has been combined with experimental practice in order to establish whether the four morphological classes show differences in the way they were used and in the patterns of the marks of use. The functional analysis has also enabled four groups to be distinguished and the contrast between both classifications displays a difference between the morphological classification based on the morphometric variables, and the functional classification. The factors involved in this contrast are examined in this study.
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The author describes the different phases which have characterised “Quantitative Archaeology” from its origin in the Sixties to the present. An examination of the present situation emphasises the reduction in the number of projects in which statistical and mathematical techniques are applied in comparison with those devoted to data recording, computer graphics and image processing. A limitation in the fields of studies, generally restricted to the more traditional application sectors, such as archaeometric analyses and typological and morphological studies of artefacts, was also observed. This situation is related to two principal aspects. The first concerns the present tendency to assimilate theory and practice, which involves the connection between the opinion on Quantitative Archaeology and the debate on processual and post-processual – or anti-processual – archaeology. The second concerns the re-appraisal of the epistemological aspect of archaeology, which implies the necessity on the behalf of archaeologist to formalise their own reasoning: a step which is often considered absent in quantitative studies. As an example, the author presents a case study, which concerns the computer-based classification of Etruscan cinerary stone urns, produced in Volterra, in order to show how the formalisation process is implied in the application of the quantitative approach.
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Classification has been an important archaeological activity for at least a century. It should not be seen as an end in its own right, but as a tool that enables archaeologist to compare and communicate. It can also be seen as mathematical activity, the study of relationships between entities in a multi-dimensional space. Comparison of these approaches leads to a set of criteria for a “good” classification. A wide and growing range of techniques is available, but more fundamental issues such as the choice of variables and the level of analysis must also be considered. The history of classification in archaeology shows a period of optimism followed by one of disappointment; the recent development of techniques more suited to archaeological needs may enable a middle view to be taken. Finally, the role of classification is assessed in the light of current trends in archaeological theory.
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Recent studies have emphasised the usefulness of a jointed employment, in historical and archaeological research, of the most advanced computer technologies with statistical methods. In this work, as an application of a Geographical Information System (GIS), we present a Matlab language program for the statistical analysis of spatial data related to ancient human settlements. The explanation of the program is preceded by some notes about the GIS, the area from which data have been collected, and the statistical methods applied to analyse the data.
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The article presents problems connected to the management of iconographic data using computer science tools. In particular, the authors discuss especially the computerised management of Athenian figure-decorated pottery which represents perhaps the most relevant set of iconographic patterns in classical antiquity. Up to now this pottery has been investigated by means of quantitative analyses to study in particular the mechanics of ancient trade in the Mediterranean basin because Athenian vases, from 6th to 4th century BC were widely exported all around this area. The computerisation of iconographic information, however, presents many difficulties: in fact archaeologists tend to express iconic information by means of linguistic sentences which are often inadequate; moreover there are still many problems about the correct interpretation of representations on attic pottery. On this subject, the authors illustrate a project on Athenian decorated pottery found at Spina, the Etruscan “emporion” of the Upper Adriatic, where the most impressive collection of Athenian decorated vases of the 5th century BC was discovered. A database has been created which collects data on 2132 clay decorated vases made in Athens: iconographic information is represented both with a description in natural language and by means of terms of a thesaurus conceived for this purpose. The database has also been explored through statistical analyses, such as Correspondence Analysis and Multidimensional Scaling, to find significative interrelationships between shapes and subjects, to identify associations between the different subjects represented on the same vase and to stress changes, as time passed, with regard to shapes and subjects.
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A research project named « Automatization of Etruscan Corpora » was established, ten years ago, at the Institute of Etruscan and Italic Archaeology of the C.N.R. The main purpose of this project is the use of information technology to file, classify and analyze homogeneous classes of artifacts belonging to the Etruscan culture. In the sphere of this project, many research works were carried out; one of these is the project Volaterrae, aimed at the quantitative analysis of about 1,200 cinerary urns produced in Volterra in the Hellenistic period, with particular reference to the classification of the chests. The metric and nominal variables chosen and encoded to describe the chests regard in particular typological and morphological information; in addition, spatial and iconographical data were also filed. In this article the statistical analysis of a group of urns is stressed. The group, which consists of 351 chests, is characterized by the representation in bas-relief of scenes relating to the Etruscan funerary world. The results obtained allow us to make some preliminary considerations regarding the modalities of production and diffusion of these chests. These results have been confirmed through the comparison wìth the entire data sample.
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This paper provides a short summary of some recent results in intrasite spatial analysis in Prehistoric archaeology and, in particular, in Paleolithic archaeology where, as it is well known, intrasite spatial analyses have been applied for at least twenty years. Starting with some “classic” examples of 80’s (the Magdalenian site of Pincevent, the ethnoarchaeological analysis of the Mask site in Alaska), and a short illustration of the techniques applied (correspondence analysis, k-means cluster analysis, unconstrained clustering, factor analysis, etc.), some of the most recent applications are described: the Mesolithic Barmose I site in Denmark, studied by H. Blankholm, and the Middle Pleistocene site of Grotte Vaufrey in South West France (Dordogne), where the intrasite spatial analysis has been performed by J. Simek. We then discuss the relationship between the “quality” of the quantitative procedures used in the data analysis, which is in general of an outstanding level, and the “reliability” of the archaeological interpretation. A major conclusion is that the problems arising in the archaeological interpretation (a good example of which is Grotte Vaufrey) are much more connected with the choice of variables in the quantitative analysis, than with the different algorithms employed: we thus recommend to the archaeologists (and not to the computer scientists involved in the research) the basic selection and choice of the essential variables derived from the data.
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In recent years, archaeologists have become increasingly aware of the added interpretability that can be gained if they adopt a model-based approach to their statistical analyses. In this paper we encourage the use of just such an approach for the investigation of dimensional data from the Sardinian corbelled structures known as Nuraghi. We highlight the fact that the experts who surveyed these domes have gained extra information (other than the basic structural measurements) which is not usually included in statistical investigations in any formal manner. Here we advocate the adoption of the Bayesian statistical framework within which the model, the data and the expert knowledge can be combined in a consistent manner and thus all permitted to influence our final inferences. By using examples we are able to demonstrate that, for at least some of the domes surveyed, the inclusion of the expert knowledge has a marked effect on the result obtained.
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The first part of the article deals with the problem of the relationship between the business world and the world of learning. In particular the author confirms the fundamental role of humanistic disciplines in the contemporary world and the necessity of the business world to recover their formative power. The second part of the article underlines archaeological trends as a “discipline” that can question the business world. The examination of computerised research undertaken up till now in the archaeological field of study shows a double purpose: the progress of scientific knowledge and the safeguard of cultural heritage. Among recent developments, the increase in the sectors devoted to didactics and the diffusion of knowledge are underlined.
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This paper deals with a particular aspect of computer-based data management in archaeology: the recording, publication and diffusion of archaeological information. The author stresses the particular character of archaeology: it is not an experimental science, but rather a learning discipline in which data should be cumulative, as each excavation involves the destruction of some previous information and, in general, each intervention, both of excavation or of conservation, gives new information that must be added to the existing ones. Therefore, the author investigates three fundamental topics with their relevant examples: the recording of excavation data, sites and objects or structures analysed and restored; the publication and diffusion of scientific results aimed at specialists; the diffusion of results towards a widespread public. In all these aspects, computer-based tools constitute a basic element. The author, in fact, maintains that their introduction and improvement will not only modify the archaeological professional experience and the way of operating, but will also affect the methodological and epistemological point of view.
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This work focuses on the images representing the myth of Ajax, son of Telamon, as represented in a corpus of finds from Greece and pre-Roman Italy. The iconography of the classical myth is studied together with other characters, such as kind of object, production, painting technique, place of finding, age. The age was fixed in intervals of 50 years, because of the wide chronological range and the uncertainty of the age of some finds. The data table crossing the finds with the characters was first submitted to Multiple Correspondence Analysis, where a strong relation was revealed. This suggested that an attempt should be made to estimate the age on the basis of the other characters. Qualitative Discriminant Analysis, applied to the objects with certain age, gave good classification functions that were used to estimate the age of the finds with uncertain age. In conclusion, the examination of the graphs shows how different meanings and functions of a Greek myth are illustrated throughout Classical Antiquity.
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A methodology for the statistical estimation of the tumular dimension of simple megalithic monuments is developed through Simple Regression Analysis. Such a perspective may contribute to the global comprehension of badly preserved megalithic monuments and to establishing their role in the landscape; at the same time, and under certain circumstances, the statistical estimation can help in the planning of archaeological activities involving the monuments.
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The increase in human population, economic development projects and the rapid expansion of inhabited areas in Iran are in conflict with the need to protect natural and cultural landscapes. Unfortunately, the natural and cultural heritage sites are the victims of these demands and they are increasingly being threatened by the growing population and their economic demands and land use before an archaeological study can be conducted. It is important to know that formulation of research policy and implementation of sound conservation-oriented management tools based on the proper research strategies could contribute toward arresting the problems while securing the existence of invaluable natural and cultural sites. A cultural landscape is, by definition, the sum of various kinds of landforms. The probabilities are that the cultural elements of a landscape may change dramatically through time as the surrounding landscape and land use patterns change. Since cultural landscape structure and change are fundamental determinants of land use, the approaches used in landscape management which emphasize environmental and cultural landscape homogeneity, offer some useful application in a holistic analysis of landscapes. This approach explicitly links archaeological studies of landscape with various land use patterns that may have affected cultural heritage structures. This paper attempts to make a contribution toward application of the above concept to cultural landscape. In addition the paper discusses the potential of an assessment method using statistics based on findings from a case study in Iran.
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Archaeological scatters on the landscape present us with spatially patterned materials and features. Linking these spatial patterns to proximate aspects of scatter structure formation, and, ultimately, to understand the effect of land use systems in which landscape taphonomy occurred is one goal for landscape degradation analysis. While in the literature there has been a growing awareness of the pattern recognition problems posed by surface artifact distributions, due to the destruction or alteration of accompanying contextual information by landscape taphonomy processes, no substantive results have appeared in Iran. Analytical techniques for the description, classification and quantitative analysis of surface data remain poorly developed here and have often been incorrectly used and interpreted. The main concern of this paper is to investigate and interpret the effects of land use patterns on the distribution of surface artifacts. The discussion focuses on providing a quantitative model which constitutes an analytical framework integrating methods and theory. This project uses an example provided by the archaeological survey project undertaken at Garrangu River Basin from 1992 onwards in Northwestern Iran. As a case study, land use dynamics of an archaeological landscape were measured through the study period, and Markov Chain models were used to project observed changes of artifact distributional structures over a 50 year period.
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This paper discusses the application of environment evaluation models, with regards to the Archaeological Component, in consideration of the rules in force for the protection and conservation of the archaeological heritage. The protection both of Cultural Heritage and of planning of infrastructures must follow the principles of «sustainable development». In the first part of the paper, the authors acknowledge the value of environmental and archaeological impact studies on the territory. These studies, which must be conducted in a preliminary phase, make it possible to acquire a more profound knowledge not only of places subject to archaeological risk, but also of the historical and environmental reconstruction that may be useful for carrying out a project. The second part of the essay tackles the methodological problem for the archaeological impact evaluation of a site; this can be developed with the following aims: a) to single out the historical periods of a territory, relevant from the archaeological point of view; b) to define the sensibility of a historical period; c) to define the level of risk. For the evaluation it is necessary to define a qualitative hierarchy of the different sensibility levels that the archaeological object can have. This hierarchy is based on the identification of the right pointers and relevant principles of interpretation. The last part of the paper is a synthesis of an applied study case, described after the explanation of the methodology of the archaeological impact evaluation. In this study case the “quali-quantitative” evaluation techniques are adopted.
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Introduction to the Giornata di studio sul tema “GIS e applicazioni informatiche alle ricerche archeologiche e storiche” (Roma, CNR, 5 luglio 2007).
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“Le Stratifiant” is a simple tool for stratigraphic data processing, which can create stratigraphic diagrams with various functions: inscription in the absolute time, according to the TPQ (terminus post quem) and TAQ (terminus ante quem) available, the processing of dubious relations and the phasing of data. Developed under the software Microsoft Excel, “Le Stratifiant” can communicate with excavation databases.
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Recent work, in the field, on the dimensions and weights of loomweights from excavations in Insula VI.I, Pompeii suggested that there was structure in the form of evidence of bi-modality in the weights. The paper has two purposes. One is to illustrate a variety of statistical methods that were used to confirm the validity of our observations. The other is to discuss what the archaeological implications of this might be. A more general point is that if more attention is given to what are often regarded as “uninteresting” artefacts some interesting results may emerge - specifically, it can be asked whether loomweights have chronological significance for interpreting archaeological sites (at Pompeii at least).
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The present work is a first attempt to apply some statistical methods to the study of the so-called Iberian thymiateria, coming from the archaeological site of El Cabecico del Tesoro (Verdolay, Murcia). These terracotta objects have been analyzed using four different methods of calculation, for the purpose of verifying the possible similarities and differences among them, considering the results of both statistical and traditional (iconographical) methods.
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The author focuses on the role played by the Scuola Normale Superiore in Pisa during the 1970s and 1980s in the development of computer applications in archaeology and art history. The roots of this activity can be traced to the post-war period in the 1950s; these were years full of constructive optimism which, during the 1960s led to the design and construction of the CEP (Calcolatrice Elettronica Pisana), to the first academic Degree in Computer Science at the University of Pisa, and to the creation of CNUCE (Centro Nazionale Universitario di Calcolo Elettronico). This latter was founded in order to coordinate the various scientific and educational activities and support computer-based research also in marginal and newly established fields. Several important initiatives resulted from the cooperation with the Istituto Centrale per il Catalogo e la Documentazione, directed by Oreste Ferrari. Computer Science was introduced at the Scuola Normale Superiore as an approach to the problems related to the automatic processing of archaeological and art history data and documents, thanks to Paola Barocchi and the creation of the Centro di Elaborazione Automatica di Dati e Documenti Storico Artistici, which established important international relationships with the Paul Getty Foundation, the Harvard University Center for Italian Renaissance Studies at Villa I Tatti, the Warburg Institute, etc.
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This paper reviews the importance of standards in archaeological computing and traces their development, and the tensions surrounding their deployment. Three categories of standards are defined: technical, content and metadata standards. Standards are shown to be particularly important to current initiatives which seek to achieve interoperability between distributed electronic resources. If we are to achieve the potential advantages of a Semantic Web for heritage data over traditional search engine technologies, standards are essential. The paper introduces the Archaeotools project, which is seeking to create a faceted browse interface to archaeological resources. It concludes that data standards and ontologies are essential to the success of such projects.
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Over nearly four decades the Beazley Archive has developed from a personal archive, whose origins were rooted in 19th century classical scholarship, to a state-of-the-art electronic resource that can be used anywhere, at any time by anyone. The challenges along the way are noted and the ways they were met, in the hope of inspiring others to persevere. The first decade was "organisational", the second saw the adoption of ICT, the third was dominated by participation in EU R and D projects in telecommunications, and the fourth by the Vision of CLAROS - Classical Art Research Online Services. Since this lecture was given in autumn 2008 the CLAROS Vision has become a reality: by August 2009 more than two million records and images were integrated virtually using CIDOC-CRM. By adopting an ISO programme developed under the aegis of UNESCO for ICOM, the International Council of Museums, and by enhancing it with Open Source software, CLAROS offers a platform that any museum or research institute with digital assets can use free of charge for the public benefit. As the Beazley Archive approaches its fifth decade, it looks forward to collaborating for the advancement of scholarship and dissemination of results to the global community.
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In the early 1990s the author brought attention to the fact that the Carta Archeologica d’Italia - due to the entity of the project which involved all of the national territory and the time required for the relative research - was in urgent need of a structural updating, through an effective system of access to the results. These demands were of a nature that only a correct use of computer technologies could guarantee in real operational time. In that period, only a few advanced experimental peaks of topographic research actually included the automatic transition of information from the phase of terrain reading to that of operational planning feasibility. Since then, many scientific projects have been devoted to locating and documenting tangible and intangible cultural heritage in Italy. However, we still have to deal with the problem of adopting common platforms to share information and make use of cartographic systems in a GIS environment, regardless of the symbols being used in the documentation phase as well as in the interpretive phase. The same information can be turned from geographical points into plan details, through an automatic scale conversion and with a scientific perspective available for the requirements of different user environments. The author concludes by remarking on the urgent need of a convergence of competences from specialised sectors. Nevertheless, modern research, while taking advantage of the co-operation of a wide range of experts, should always consider that results coming from different points of observation pertain to the observers’ specific field and should not be "invasive" but respectful of their methods.
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A major quantitative movement in all of the Social and Human Sciences known as Operational Research, started after the last world war with the application of mathematics developed for the optimization of war logistics. Since the 1960s, the fascinating progress of computer technology in the field of scientific research has amplified the movement which saw the first applications to Archaeology around 1966. At the time, the success of a Quantitative Archaeology was associated with the revolution in multidimensional data analysis, which occurred with computerisation and improvements in the algorithms, mainly Multidimensional scaling, Factor Analysis, Principal Component Analysis, Correspondence Analysis and various Cluster Analyses. The Conference of Mamaia (Romania) in 1970, which may be considered as the first and most spectacular scientific event of this period of foundation, found expression in the book Mathematics and Computers in Archaeology by Doran and Hodson (1975). From 1975 to 1985, the quantitative movement experienced its finest period with the transition from the research field to the application field, both for algorithms and software, and the diffusion of Correspondence Analysis, Principal Component Analysis associated with Cluster Analysis and their use by archaeologists. Numerous papers and books were published during that period. After 1985, the quantitative movement fell into disfavour, probably due to the "deconstruction" paradigm and the passing fashion of expert systems. Nevertheless, it is also possible to state that Quantitative Archaeology had now definitively entered into the standard methods of Archaeology.
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This paper is a brief and personal historical overview of the development of archaeological computing and its relationship with changing archaeological theory. I outline the changes in theoretical approaches through the 1960s to 1980s and how these relate to archaeological data, methodologies, the use of models and interpretation. Two sub-themes within the paper are the importance of scale and the representation of qualitative, as well as quantitative, data and interpretations. Through the use of Geographic Information Systems (GIS) applications in archaeology, I discuss various aspects of recent theoretical approaches and how they have been represented through archaeological computing. Because this is not an easy relationship, I suggest that the intentions of an analysis will inevitably produce tensions between practice and theory. It is by confronting these tensions that the discipline of archaeological computing will move forward beyond technologically determined push-button solutions.
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This paper illustrates the main research projects implemented by the LIA (Laboratory of Archaeological Computing) at the University of Salento (Lecce, Italy) in the field of computer application to archaeology. This activity started in 1983 with the first excavation data management system. Further developments are linked with the use of GIS in the field of settlement studies and, more recently, with the implementation of two web-based applications, which represent the on-line versions of the older systems. The paper also presents the results of a research project, LandLab Project, in the field of multimedia communication.
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Twenty years after the consolidation of a true professional archaeology in search of a "scientific" dream, mathematics and computers made their appearance in the discipline. In the same way, the first essays dealing with "automatic archaeology" appeared in the 1950s, looking for standardization of archaeological description and statistical reasoning, but we had to wait for another 30 years until the appropriate technology was available. At the end of the 1970s and beginning of the 1980s, Expert Systems were considered as a true promise towards the independence of archaeological reasoning from subjectivity. Nevertheless, the rise of postmodernism and the radical critique, with its emphasis on subjectivity and situational context of the research effort generated considerable turmoil that, in appearance, buried the dream of an automatic archaeology. Research efforts in these domains of computational intelligence continued, however, especially in the domains of remote sensing and archaeometry. Modern technological developments like 3D scanning are responsible for a revival of interest in computational intelligence methods. Today, we are still far from the early dream of an automatic archaeology, but it is no longer a "nightmare". It is a technological reality that will contribute to a more professional and scientific-based archaeology.
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Knowledge has been the driving force behind the Italian National Catalogue of Cultural Heritage. In the first stage, when the catalogue was mainly based on hand written paper cards describing objects regardless of their complexity, and intended for manual access by humans, the expert’s tacit knowledge remained unexpressed, and the card had a simple structure. Computer based applications initially relied on the features of Information Retrieval Systems, and simply converted typewritten cards into electronic documents. As results were quite disappointing, it became evident that a more formal representation of information was needed. The Italian experience led to the definition of a model for objects (simple, complex, aggregation of objects) with quite a large number of fields. Even if the schema was often perceived as too rigid, it proved to be effective for data exchange, and long lasting (the present XML model is almost the same, just with a different syntax). However, its main drawback was the "object centred" approach, and the impossibility of representing significant semantic associations with other disciplines. In this sense, a major objective, the contextualization of objects, remained unattained. The web has been a "cultural revolution", because information is available everywhere, and users feel the need to combine different sources of knowledge. This semantic interoperability issue is often dealt with by adopting a metadata based approach (Dublin Core is the most popular). However, the metadata approach has the intrinsic limit that metadata are properties we "predicate" about items they refer to, and it is difficult, if not impossible, to derive new knowledge from the old. The Semantic Web perspective is much more ambitious, as the aim is to represent, export and share knowledge in a "machine understandable" way, and to allow intelligent agents to reason about it. In this light, scholars’ knowledge must be formalized and made explicit as ontology, and very probably we will have to agree on a different model to represent objects, in a distributed and multicultural environment. This is not the end of the traditional scholars’ knowledge, but a more effective environment for making this knowledge available to all users.
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The Virtual Museum of the History of Italian Computer Science is a project which was started in 1996 and, due to lack of funding, was never completed (and therefore is not available to the general public). The project, which presented a complete and, for that time, innovative "design", was carried out by the Politecnico di Milano and two CNR Institutes (now unified in the ISTI - Istituto di Scienza e Tecnologie dell’Informazione "A. Faedo"). It includes an archive, where all basic information is stored, and two different interfaces: a direct search access to the archive, for specialised and expert users, and a navigation access via web, for extended public users. Information available includes documents and photographs, biographies, descriptions of achievements and innovations, etc. One special characteristic is the use of interviews to key persons, that recreates the heroic, pioneering atmosphere, typical of Computer Science in the 1950s. This use of first person narration as reported by the protagonists can be considered a precursor of solutions that became very common many years later (e.g. Web 2.0) and could be a model for archaeology in general.
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In the first part, the paper introduces the section that collects historical syntheses of some of the most relevant issues related to technological applications in archaeology. Databases, GIS, multimedia applications, cataloguing activities of archaeological heritage, museums, and the Internet are the fields chosen to illustrate more than 25 years of research, projects, realizations. The paper stresses common criticisms and recurrent difficulties in these sectors of research, but also important results and achievements for archaeology on the whole. In the second part, the paper briefly discusses the relationship between the Internet and archaeology. Web applications in archaeology started in the early 1990s. Initially, archaeologists were very suspicious of web reliability: the Internet was a useful tool for popularization purposes, not for scientific research. The paper discusses reasons for the failure of some archaeological applications - for example electronic publishing and limited area search engine - and success of others: museum web sites above all, with their effective use of visual and interactive web technologies. Nowadays the Internet is an almost unavoidable tool for every type of archaeological research and it seems to have become the comprehensive frame in which all other technological applications are expressed. Internet technologies could introduce a new communication structure in archaeological research with the use of interactivity and hypermedia. The last challenges in ICT are the so called Web 2.0, social computing and a radically innovative vision of hypertext structure: these research fields could change the way of archaeological culture communication and knowledge transmission.
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The article presents a brief description of the principal institutions which, during the 1970s and 1980s, were in charge of the computer cataloguing of their respective national cultural heritages, with specific emphasis on archaeological heritage. Particular attention is dedicated to the Italian experience, with some reference to the situation in England and in France during the same period. The 1970s and 1980s are, in fact, two particularly remarkable decades, in which centralised national projects followed the first isolated experimentations, and developed tools, such as lexicons and thesauri, as well as techniques for indexing and information retrieval. The article focuses in particular on the activity conducted in Italy by the Istituto Centrale per il Catalogo e la Documentazione (ICCD), as well as that of the Scuola Normale Superiore in Pisa. As far as England is concerned, the author describes the pioneer research work of the Royal Commission on the Historical Monuments of England (RCHME), founded in 1908, and, more recently, that of the Archaeology Data Service (ADS); for France, the author focuses on the work conducted since 1964 by the Inventaire général des monuments et richesses artistiques de la France.
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By means of the NADIR network, designed by the Research Centre for Multimedia Technologies Applied to Archaeology (Te.m.p.l.a.), the Department of Archaeology of the University of Bologna organises, controls and develops the use of multimedia technologies in archaeological activities. The reach of NADIR covers a broad spectrum of activities that ranges from the management of the net and the working seats, to the organisation of the equipment logistics, to the realisation of special operational workspace and services (e.g., Unibook.it) and the experimental projects for the remote-control of workspaces and multimedia exhibition halls (e.g., the Multimedia and Multifunctional Museum of Onferno).
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Research in theoretical and computer-based archaeology, from the 1950s onwards, established important perspectives for the formal representation and analysis of tangible cultural entities such as complex artefacts, iconographic compositions and archaeological assemblages, and became a precursor for the emergence of knowledge-based tools, methodologies and standards for artefact-centred information systems in contemporary museums. One particular case in point is CLIO, a semantic information system intended for research use, developed by ICS/FORTH and the Benaki Museum in Greece in the early 1990s, which became a foundation for the definition of the Conceptual Reference Model of the International Documentation Committee of ICOM (CIDOC CRM), recently adopted as the ISO standard for cultural information representation. It is argued here that, as the capabilities of computer applications to provide access to complex, multimedia cultural information increase, so does also the validity and importance of earlier research advances in artefact-centred archaeological computing; and, conversely, that the advent of digital infrastructures for material culture disciplines such as archaeology highlights the pertinence, and potential benefits, of further work on archaeological formal analysis and knowledge representation.
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Archaeoastronomy is a discipline devoted to the study of the astronomical observations preceding the invention of the telescope. It is an interdisciplinary science, requiring the knowledge of astronomers, archaeologists, linguists, anthropologists and architects. It has highlighted the great importance that ancient civilizations attributed to celestial phenomena and demonstrated how the analysis of the testimonies of this interest can greatly help us in the understanding the past history of mankind. However, we must avoid the mistake of believing that it is possible to study the impact of celestial phenomena on ancient cultures without taking into account their context: unfortunately, this error is still common to date. This paper illustrates the evolution of Archaeoastronomy since the beginning of the 20th century, its basic principles and the modern methodologies for Archaeoastronomy measurements and data analysis. Moreover, the proofs needed to claim the actual intentionality of an astronomical alignment are discussed, showing the potential of Archaeoastronomy, as long as it is strongly linked to, and continuously compared with, excavation data, and combined with Archaeology in various cultural contexts, thus providing valuable assistance in the interpretation of material data.
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Since 1950, in the history of Quantitative Archaeology, the data approach has been the essence of the mathematical and statistical applications in Archaeology. In the present paper, it is proposed to focus on the process approach and to point out new fields of mathematical applications in Archaeology. Several archaeological processes are shown, for example, archaeological business process, stratigraphy process, post-depositional process, taphonomic process, technological (manufacturing) process, building process, intersite spatial process (landscape archaeology), exchange process, cultural change process. The list is not exhaustive and has only the purpose of illustrating the interest of such an approach. Several examples of applications are given, which show the differences between the data approach and the process approach. The mathematical techniques, which are used, are mainly the description and the quantification of the processes, elementary statistics, data analysis, stochastic models and the simulation by multi-agent systems.
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This paper explores some issues related to recording and analyzing archaeological datasets. After making our (neo-)processualist approach clear, some key digital technologies (relational databases) and methodologies (conceptual modelling) are discussed as examples to assess the actual state of archaeological information systems and reflect upon possible future directions. This brings us also to define the limits of quantitative (and especially predictive) analyses. Variability of parameters and, above all, the extensive lack of reality tests are heavy hindering factors. Precisely defining the variables and attractors based on specific questions can help us to relativize complex systems, bending the analyses to our needs.
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Landscape Archaeology arises from the spread of a stratigraphic mentality understood as culture, as well as a simple way to investigate. Since its birth, Landscape Archaeology has had a close relationship with Medieval Archaeology. More difficult was the relationship with Classical Archaeology. Only the most careful and curious classical archaeologists had seen the gap and lack of an organic relationship with the natural sciences and geography. In the last decades archaeology has become a place of participation and communication. The past has been told to a wide public through exhibitions and museums, following a path to grow again, until the current systemic crisis of the world’s cultural heritage. Archaeology is a discipline with its own constitution and, within it, global landscape archaeology has its own identity. It is, however, essential that archaeology benefits from closer relationships with other sciences and knowledge networks. A clear change of perspective seems, at this point, necessary. The territorialist approach can be very useful and help to draw new roads.
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The huge amount of available records belonging to the Italian Bronze Age and the necessity to find a methodological support in data treatment prompted the research group of the University of Bologna to build and test IT solutions. In particular, material culture data were processed within a database system, in order to develop a typological classification, linked to the table containing provenance data (site and context) and to a GIS. Therefore, through the geostatistical analysis it is possible to visualize and easily evaluate the distribution of each type or of any other result. The system includes a visualization module of cumulative graphic documentation resulting from queries to the database for a better reconnaissance and validation of the typological classification. Final aim of the project is the possibility to share with other scholars and institutions any record or any result of distributional analysis through a webGIS, now available in a preliminary testing form.
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The paper examines the applications of some software technologies in archaeological research and discusses a number of errors that may derive from a naïve approach. In considering databases, relational databases have strict requirements that are fulfilled in most cases when dealing with archaeological records, but cannot be given for granted without further investigation. It is suggested that XML technology may solve many of these issues. Digital Elevation Models generated automatically by GIS software may create undesired or unrealistic terrain features and introduce errors, as well as GPS data acquisition. The frequent absence in archaeological GIS papers of an error analysis confirms the lack of a critical approach to these mathematical tools. Finally, computer visualisation is examined in the paper, with a similar criticism to an exclusively visual interpretation of Virtual Reality reconstructions. Since all the tools examined in the paper were created within other applicative contexts, it is hoped that a more conscious approach may better integrate them into archaeological method and theory.
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The purpose of this article is to illustrate the enormous opportunities that the archaeologist is offered in the study of historical landscapes by the process of reconstructing spatial models. This formal process is characterised by the progressive incorporation of social and ecological variables in the form of numerical cartographic surfaces within a given model. In fact, the distortion of social space requires such a quantity, variety and complexity of operations that they could not be realised and synthesised without the help of a computer. Once this process has been completed, it can be exploited in various fields, like the history of roadways and transportation networks, or for a better comprehension of the effects of certain settlement layers on other levels of social occupation of space.
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A new approach to the topic of Late Bronze-First Iron Age settlement patterns in the south-eastern countryside around Seville (Andalusia, Spain) is presented by the application of a new landscape analysis technique: visibility analysis. Some aspects of visibility analysis are discussed, as well as the resulting methodological proposals. Finally, this methodology is applied to the study area, generating historical interpretations about related questions (settlement patterns, means of communication).
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In order to test the ability of textual coding to depict the features of structured images, a corpus of images of Near-Eastern seals of the late IVth millennium BC was studied through different exploratory analysis techniques. Two different coding systems were considered: the classical presence/absence coding of iconographical elements present in the images and a new textual coding, based on a formalised text describing the image. These were submitted to Multiple and Textual Correspondence Analyses. The textual analyses were performed according to two different coding systems, and several choices of the items involved. The results of the different analyses are discussed and compared here. In particular, textual analysis proved effective in substituting the classical coding in the description of the iconographic elements appearing in the images. In addition, it allowed us to broaden the investigation to include aspects of the images (occurrence of fixed sub-patterns and composition) which are beyond the capacities of classical coding. The ability of textual coding to select particular elements, and/or element sequences, to be taken into account in the analyses, was also considered an interesting feature for fine-tuning the analyses to the particular characters of specific corpora. Thus, the use of a formalised text as an intermediate between images and analysis tools proved to be a method worth using, in spite of the special care needed, and some still unsolved difficulties.
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The paper summarises some preliminary results obtained by a research team of the Istituto per le Tecnologie Applicate ai Beni Culturali of the Italian National Research Council (CNR-ITABC) in the archaeological area of Sabina Tiberina (Rieti). The study makes use of statistical methods and information technology with the goal of implementing a GIS of the above mentioned territory. The area investigated, falling within the counties of Magliano Sabina and Stimigliano, presents a wide chronological stratification dating from prehistory to the Roman age. The anthropological pre-existence considered show differences depending on settlements themselves which are always numerous in the various ages; in fact the proximity of the river (the Tiber) is the reason for their existence, allowing a cultural transmission besides the natural function of trade route. This paper is divided into two parts. In the first, all data concerning surveys carried out with the goal of finding and classifying the settlements of Roman age are included. In the second, some descriptive-documentary aspects gained through developing the GIS, together with statistical processing aimed at the creation of maps of data and settlements, are commented upon.
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Introduction to the Proceedings.
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Archaeological publications raise problems of many sorts, currently discussed in connection with computer networks and other technologies. One of them, however, seems somewhat neglected, namely the fact that we are mostly unable to read more than a fraction of the articles and books published in our respective fields of research. The substitution of electronic to printed publications does not fully meet that challenge. Complementary measures are needed, taking into account an acknowledged reality: our works are for the most part consulted, not read. The schematisation of archaeological constructs developed in the logicist perspective is meant to facilitate consultations; it is related to the computational paradigm of the information age. As such, however, it fails to fulfil one of the functions of historical works, associated with the narrative mode of thought and discourse. This paper advocates a parallel development of the two genres in archaeology, one through electronic publications of a radically new form, the other through printed works explicitly conceived as literary versions or expansions of the former.
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Ten years after the publication of his article in «Archeologia e Calcolatori», the author returns to the subject of the relationship between computers and Medieval archaeology and describes the different phases of development which have characterised this field of study. In particular, he describes the research activity carried out by the Laboratory for Computer Applications of the Department of Medieval Archaeology at the University of Siena, which was created and implemented over the past ten years. The information system which has been developed is based on a programmed user interface (OpenArcheo) which operates as a supervisor and has been used for several different projects aimed at organising in an integrated environment large quantities of data, such as the “Progetto Siti d’Altura della Toscana”, concerning the editing of archaeological maps of Tuscan cities and provinces, and for the organisation of data from the excavations carried out by the Department.
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The state of the art concerning intrasite spatial analysis is given here, with the potentialities and the limits of the methods. In the first part, the interpretability of the spatial structures is questioned, focusing on the influence of cleaning and deserting of sites, and also the existence of post-depositional process, which can more or less cancel the expected spatial structures. Subsequently, the different methods of intrasite spatial analysis are described, following a brief history of their introduction into archaeology: the research of clusters in a spatial distribution, the association between two spatial distributions, and finally, the multidimensional spatial analysis actually used. Two important complementary methods are also described: the reassembling of spatial analysis and the chronological spatial analysis.
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The study of a wide variety of artefacts of cultural interest requires a vast and heterogeneous documentation that ranges from information concerning the physical sites, to the typologies, state of conservation, methodologies of documentation and intervention, until the whole cognitive process is brought to fruition. The techniques employed for analysis, intervention and documentation are therefore fundamental both for the planning and the implementing of innovative solutions for the recovery and the conservation of the artefacts themselves, as well as for the protection and preservation of the archaeological heritage involved. This paper consists of an analysis of research projects in the field of cultural heritage which includes aspects of information and communication technologies, based on the ACM Classification Scheme. The topics dealt with are intended as a contribution to the understanding of the interdisciplinary approach which should be taken into consideration in proposing future research programs.
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One of the tasks of cognitive archaeology according to C. RENFREW (1994) is «to use the well-established techniques of rational scientific inquiry, and to aim to develop these [...] by explicit theoretical formulations». Such is the purport of the ongoing research program initiated in France in the '70s on the logicist analysis and computational modelling of archaeological constructs (GARDIN 1979). A first assessment was presented to UISPP Commission 4 in 1990; the present paper describes advances of the program after that date in two directions, theoretical and pratical. 1. On the theoretical side, (a) new light has been shed on the position of the logicist analysis of archaeological papers (irrespective of their subject or denomination) in relation to recent work on natural logic or natural reasoning in the sciences of man; (b) further, the modelling function of the proposed 'schematisations' of argument has been brought out in the course of an ongoing debate on the respective part of Models and Narratives in the constitution of knowledge in the social sciences. The constraints to which mathematical models are currently subject are applicable to logico-discursive models as well: the same tests (formal coherence and empirical correspondence) are used to establish the validity of both; (c) lastly, as a logical follow-up of a and b, the case for a 'séparation des genres' has been strengthened, i.e. scientific models on the one hand, whether quantitative (mathematical) or qualitative (logicist), and/or imaginative amplifications of their findings on the other, both genres being however regarded as contributions to knowledge in a broad sense (BRUNER 1986). A large part of our discursive constructs belong to an intermediate or hybrid kind which tends to claim a distinct epistemological status, between or above the two genres. Doubt are raised about the future of this perspective in the long run; they found some unexpected support in Paul Ricoeur
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Paleolithic art is a fundamental tool for the understanding of prehistoric societies. The relationships between paleolithic art and archaeological sites have been investigated and show the existence of nearly all the types of artistic expressions (sculptures, paintings, engravings, drawings, clay modelling, mammoth bone assemblages, etc.) in various sites like rock shelters, open-air sites, burials, deep caves, open caves and rock open-air sites. Unfortunately, old discoveries and tourism have destroyed in most cases the relationship between mobiliar and cave art with archaeological structures, limiting to recent discoveries the capability of a global approach. The different interpretative theories of prehistoric art since XIX century have been remembered both for symbolic explanations (Reinach, Breuil, Bégouen, Raphaêl, Laming-Emperaire, Leroi-Gourhan, Sauvet, Vialou, Clottes) and for social explanations (Efimenko, Abramova, Semenov, Iakovleva, Sieveking, Conkey, Bahn), and their revision due to the recent 14C AMS dates directly obtained on paintings made by charcoal. The critical question of the building of a reliable chronological framework is discussed. A method to study prehistoric art is then proposed, in five main steps: Step 1: Acquisition (recording); Step 2: Acquisition (signs, species and scenes determination); Step 3: Structuring (craftsmen workflow: space selection, physical-chemical studies, stylistic analysis, panel organization); Step 4: Structuring (chronological and spatial organization of the decorated space, relationships between the decorated space and the territory of hunters-gatherers); Step 5: Modelling (the craft system, the social system and the symbolic system of the hunter-gatherer society).
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This paper will focus on the origins of the city. This subject has been studied in sociology, anthropology, history and geography, but there is not a unified approach. Our paper deals with the specific way social theory can be used in archaeology. We consider that a 'city' is a specific form of social space 'produced' by a series of social actions. However, this 'production process' cannot be described easily in archaeological terms. As a result, there is a deep gap between social theory concepts and archaeologically observable evidence. Today it is fashionable to speak about the unscientific nature of Archaeology and Social Science. This paper deals with this discussion, trying to create an observational theory to understand the process of city formation. We reject traditional positivist approaches of concept and reference, because of its simplicity. However, this fact does not mean that the analysis is impossible in scientific terms. We show how to use spatial statistics, probabilistic modelling and visualization technology in order to obtain a simulation of the spatial process, and then use the resulting model to build a representation of social theory in archaeological terms. In the paper we use the Italian city of Tarquinia as a case study. It is suggested that the origin of the city can be represented as a spatial process beginning with preliminary scattered villages, which join together forming bigger spatial units, which become attractive for the better geographical and geomorphologic conditions. The gradual consolidation of the main settlement in the best location is determined by the population growth, and the development of a new productive system and new social relationships.
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In the last fifty years, many types of models on ancient social evolution have been created, both in the Old and New Worlds. This paper reviews the most influential ones, trying to summarize the recent, radical changes in the theoretical perspective on the emergence, development and collapse of complexity in human societies. The most serious problem, today, seems to be an enormous gap between the inadequacy of the archaeological record and the growing refinement of theories.
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The use of ethnographic analogy to interpret archaeological remains has produced many misunderstandings, which must now be corrected. 1. Ethnology is traditionally oriented towards the analysis of the thought systems of the populations under study, and believes all too often that this type of discourse in natural language is an acceptable explanation for the observed empirical phenomena. The scientific discourse built by the ethnoarchaeologist must not imitate the distinctions made by the people under study, given that their constructs seek to satisfy different objectives. 2. The construction of inference rules must be subjected to the requirements of all scientific research. In consequence, one must not merely collect 'cas d'espèce', but also assemble numeric data which are sufficiently representative for statistical treatment to be carried out. 3. It is necessary to define, in each case, the actualisation context of the rules, that is, the spatial and temporal universe wherein the proposed rule is applicable. 4. The only way to validate a rule resides in the precautions taken during collection, mobilisation and treatment of empirical data. 5. Successful application of an actualist rule to archaeological data does not mean that the latter has been validated. The only way to confirm an interpretation is by applying the principle of result convergence by independent methods.
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The archaeological record can be described using a relevant observable feature: location. Shape, size and other properties vary from one location to another, and sometimes this variation has some appearance of continuity, which should be understood as variation between social actions due to neighbourhood relationships. Time and space are not different ways of considering the nature of archaeological locations. Consequently, 'locations' can only be understood in functional terms, that is, according to what is performed at each place at each moment. In this paper, the objective is to analyse where, when and why a social action varies from one location (temporal-spatial) to another. Some mathematical techniques are presented to calculate the probability of social actions at specific locations, based on the spatial properties of archaeological data. These techniques are used as a representation language for studying the concepts of accumulation and attraction, which allow the study of social space in dynamic terms.
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A generally Bayesian attitude toward statistical inference seems to me so obviously superior to the 'classical' Neyman-Pearson approach that it is difficult to comprehend why not everyone agrees. I believe that most non-statisticians learn classical procedures ritualistically but then interpret their results in naively Bayesian ways. It would be better if they became more sophisticated and knowing Bayesians. A truly introductory text on the logic of Bayesian inference, with some simple but useful applications, would probably help. Bayesian inference with an uninformative prior may yield the same results as classical inference, but with coherent rather than muddled logic. An example of a very useful but mathematically simple archaeological application of an informative prior is using prior information to improve estimates of true proportions of artifact categories in populations represented by small collections. However, a complication arises when the observed proportion in a fairly large sample is well outside the range considered at all likely for the relevant population, based on prior information. In this case, straightforward use of a beta prior distribution can yield results that seem unreasonable. Possibly our prior information is better represented by a modified beta distribution with 'heavy' tails. Advice about this problem would be appreciated.
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It is well known that interpretation always conveys a certain degree of subjectivity, which disappears as soon as interpreted data are stored in a computer database. This may lead to dangerous approximation and possibly to fallacious conclusions. To avoid this oversimplification, it has been suggested to use fuzzy databases, in which attributes may have a fuzzy nature and be indexed by a numerical coefficient, the fuzzy coefficient, which can be interpreted as the degree of confidence the researcher has in each possible assigned value. This technique has been successfully applied to gender and age assignment for the deceased in a cemetery investigation: in this case anthropological data offered statistical parameters that could be used to compute the fuzzy coefficient. Lithics classification is another field in which fuzzy databases have a potential usefulness, but in this case, no previous statistics may help in determining the fuzzy coefficient. We decided to perform an experiment during a standard typological classification of a flint tool assemblage from Israel. It concerned the classification of 50 tools, by different researchers. Each one was asked to note, besides the typology of each item, an evaluation of the 'degree of sureness', or the 'possibility' of an item to belong to a particular type, in other words his or her guessed estimate of the fuzzy coefficient. This paper reports the results of this experiment, in order to evaluate the difference between researchers when performing a classification of tools, to recognize problematic types or items (which mostly differed between the typological lists presented) and eventually to compute a fuzzy coefficient for each type assignment, balancing the different evaluations of experts.
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A new dynamic spatio-temporal model of North American prehistory and protohistory from 14,000 BP to 200 BP allows researchers to visualize the ebb and flow of culture change and demographic processes at any of many possible scales. The authors of past syntheses of such changes over time and space on a large scale in North America have depended upon aggregating lower-level syntheses and summaries prepared by various regional specialists. One advantage of the model is that it eliminates much of the bias and filtering that is typically entailed by this dependence. It does so by directly referencing site-specific data recorded and maintained in a GIS format. These are called up and displayed as animations of spatial change over time. The animations in turn can be mapped against environmental changes over time and space. The model raises theoretical and methodological questions about how we record and disseminate our data. These are briefly discussed.
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Review article.
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Introduction to the Special Issue.
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Theoretical archaeology has known many important contributions in the last 20 years, both inside and outside the general archaeological handbooks. On the contrary, the methodology of computer applications has received less attention, because the formal linguistic character of computer procedures has been scarcely understood. A relevant exception is the fundamental logicist theory of J.-C. Gardin, which was conceived outside computer applications, but soon found its place in their methodology. Two recent books (with CD), publishing the results of such experiments, are discussed
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Almost everything that is written or said about the use of information technology within archaeology relates to hardware and applications and there is a general poverty of (published) material which considers the implications of the application and use of these tools on the way that the discipline of archaeology is practised. Although we are generally comfortable with the idea that technology has changed the way we live our everyday lives, and the ever-increasing pace of that change, for some reason there appears to be a general reluctance to consider that such changes and the pace of these changes may also impact on archaeology. This paper proposes that computer-using archaeologists have for too long ignored a critical area of research: the consequences of the new information and communication technologies we use. Archaeologists point with justifiable pride to the tradition of self-critical analysis of new ideas and methodological changes within the subject. Archaeologists question their data, their methodologies, their theories, their conclusions, the very basis of their subject, yet it appears that archaeology operates within a 'bubble', somehow immune to the consequences of the new technologies that are more and more a part of both the world around us and of archaeology itself. Furthermore, archaeologists are accustomed to theorising about technological changes in the past (ranging from new flint technologies, bronze and iron working, the evolution of the plough, developments in literacy, and so on), and may bring new perspectives to contemporary analysis of the technological world around us.
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The Central Institute for Cataloguing and Documentation (ICCD), a body of the Ministry of Cultural Resources and Activities that handles the cataloguing and documentation of Italy's cultural heritage, recently concluded the project undertaken for the creation of the General Cataloguing Information System (SIGEC), an effort focused on making possible the integrated management of the different types of information - alpha-numeric, multimedia, geographic - available on the resources. An especially interesting aspect of the SIGEC, and one of its strengths, is the possibility of cross-referencing the informative data on the resources to their home territory, revealing the logical, historical and spatial relations between the environmental and anthropogenic elements, as well as the other entities of cultural interest, found in a given geographic setting. The result is an improved and better informed knowledge of the resources in question, which are placed in their proper context of time and space. While these considerations are valid for all types of cultural resources, they are especially pertinent to the archaeological heritage, which, as tangible evidence of past civilisations, takes on particular value and meaning at the precise moment in which it is placed in the historical and territorial context in which it originated and existed. The complexity and variety of the cultural resources have made it necessary to formulate specific technological and cataloguing tools with which, under the SIGEC, the geographic data generated by the customary GIS instruments is correlated with the descriptive information obtained on the resources, as well as with the sum total of the relevant documentation (graphic materials, images, multimedia pieces). In the specific case of archaeological resources, both the measures currently in force and those being updated or drawn up for the first time have been supplemented with the core information necessary for the application of the functions of the system. In addition, the cataloguing standards have been reformulated, creating a multifaceted structure in which the chart for the Archaeological Site (SI) serves as the historical-territorial reference framework for the other types of charts (SAS, Stratigraphic Survey; MA-CA, Archaeological Monument - Archaeological Complex; RA, Archaeological Artefact; NU, Numismatics; TMA, Table of Materials), making it possible to determine the space-time context of the resources described therein.
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Europe is a very old and very small continent. The accession of ten new states to the EU in spring 2004 reminds us that the political boundaries we police and survey would have made little sense to the ancient populations who moved freely across our frontiers. Our disparate national and local heritage services represent different traditions and experiences of researching, recording, presenting and managing what should be among our principal assets. This diversity risks undermines research and conservation, it inhibits international strategies for heritage management and institutionalises anachronism. Can information technologies support the EU's stated aim of creating a single European research area for archaeology? This paper investigates the long-standing question of how different archaeological data sets in different parts of Europe may be aligned more closely to support research learning and teaching. It identifies emerging technologies to for resource discovery, integration and delivery, placing these in the context of organisational evolution. It asks how these organisations and technologies might work together to support archaeological information at a continental scale.
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This article discusses the criteria and methodology applied for the insertion and later development of the archaeological terminology into the Andalusian Thesaurus of the Historical Heritage (TAPH), published in 1998. Firstly, the background and precedents that gave way to the creation of such documentation language are dealt with. Secondly, we comment upon the problems encountered in the integration of the archaeological vocabulary within a thesaurus that comprises several other heritage-related disciplines such as Architecture, Ethnology or Art History. Thirdly, the significance of the TAPH five years after its publication is evaluated, with a special emphasis in the process of its implementation and computerisation within the Information System of the Andalusian Historical Heritage.
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Central to the arguments developed in the paper is an examination of the contextual approach to the interpretation of archaeological data. The management systems for excavation data are seen as strategic instruments for realising the potential of the means of analysis and interpretation of contexts. In this regard, the problem of which standards to adopt in the definition of finds, in particular portable items, becomes crucial. The paper discusses the most suitable criteria for the creation of dictionaries (structures for cataloguing) aimed at evidencing the functional aspects of portable finds, as an instrument for the best interpretation of contexts. The experience of the Archaeological Computer Laboratory of Lecce University is presented.
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Starting from the remark that scientific progress and cultural background proceed in a dialectical way, this paper seeks to deepen the relationship between scientific thought, archaeology and information technology. The still rationalist approach of information technology presses archaeologists toward applications where the quantity of data to manage and manipulate is dominant. The importance of quantitative methods is not balanced by an adequate reflection about the connection between archaeological theory, information technology and mathematical formalism. In archaeological field rules, as in other scientific areas, an attitude within the common expectation of confidence towards information technology seems deterministic; in this view technology is neutral and independent in comparison to the changes of the society. This is the dominant framework of archaeological computing closed within autarchy, self-reference and productive myth. The paper examines the possibility to define a different way of formal description and then analysis of archaeological objects. These different approaches, borrowed from other disciplines, are not dependent only from the theoretical model that the archaeologist selects for the digital reproduction of reality. They are a reflexive attitude and research experience which enables archaeologists to articulate in a flexible way data description and formalization without falling into the trap of the true/false opposition and the presumed neutrality of quantitative methods in archaeology.
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Point pattern analysis has been one of archaeology's quantitative approaches since at least the 1970s, and has been applied at a range of scales, from the region to the site. Various techniques have been 'borrowed' from other disciplines, notably ecology, such as quadrat analysis, nearest-neighbour analysis and kernel density analysis. There have also been 'home-grown' techniques such as Local Density Analysis, Presab and Unconstrained Clustering, as well as the use of Cluster Analysis itself. This paper reviews these developments, assessing their strengths and weaknesses. A statistical advance was made in the 1970s with the development of the K function approach. This has become embodied in the ecological statistical software package ADE-4 as the Ripley and Intertype programs. These programs were found in a search for suitable affordable software for teaching spatial analysis at post-graduate level, and have been used in this role for three years, taking as a test-bed the Danish mesolithic site of Barmose I. The outcome of this work is presented as a case study and compared with earlier analyses of this dataset. The value of ADE-4 for archaeological spatial analysis is assessed.
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Digitization of cultural heritage: model of an integral, three-dimensional spatio-temporal thesaurusDigital technologies developed during the last decades substantially change the processes of accumulation, custody, record and investigation of cultural heritage as well as the processes of spread of information on cultural heritage. Basic features of current situation of digitalization of Lithuanian cultural heritage are: a) willingness of most institutions to digitalize the data they have; b) financial problems of digitalization; c) absence of national strategy; d) low level of inter-institutional collaboration; e) low level of standardization. Taking into account the last three features we can forecast that sooner or later (if the situation does not change) Lithuanian digital information systems of cultural heritage will be confronted with the problem of usage efficiency. Perhaps the most important parameters characterizing cultural heritage are historical space and historical time. But we do not have any wider systems of presentation and classification of historical space and time designed for digitalization of cultural heritage in Lithuania. Object of this article is the models of historical geography and historical chronology applied in the digitalization of cultural heritage. Aim of the article is the presentation and substantiation of the model of a space and time thesaurus (standard) of Lithuanian systems of digitalization of cultural heritage. The basic aims of such a thesaurus are the following: 1) creation of a universal method of presentation of historical space and time in digital environment; 2) consolidation of a general scheme (standard) of periodization and historical geography (to put on end to disputes among the specialists on this subject); 3) standardization of space and time presentation in digital environment; 4) organization of management of digital information of cultural heritage; 5) geographical and chronological classification of the objects of cultural heritage; 6) integration of all historical geographical data in a single system that becomes a form of digital cultural heritage; 7) digitalization of the data of different objects of cultural heritage in single and integral form; 8) analysis and dating of information of the objects of cultural heritage; 9) creation of schemes of cultural development.
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This paper takes into examination two different districts of the vast area investigated by the archaeological survey of the hinterland of the ancient Greek colony of Himera: the coastal area between the northern Imera and Rocella rivers and the hilly watershed zone located between the northern Imera, southern Imera and Platani rivers. The study examines the relationships between geomorphology, post-depositional processes and visibility of the ground and their impact on the interpretation of data collected during the archaeological survey and, consequently, on the historical reconstruction of the population of the territory from Prehistory to the Middle Ages. Three aspects in particular have been taken into consideration: a) the impact of geomorphology on the recognition of archaeological traces; b) the relationship between geomorphology and visibility of archaeological finds; c) the role of the geomorphological and/or of the human factors in the selection of areas to be settled. Our conclusion is that the geomorphological context assumes a major role in the selection of areas of settlement, while the visibility of the ground seems to affect not only the number of archaeological finds, but also their legibility and interpretation.
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This paper focuses on a survey of the Predictive Archaeology domain, including a review of its key developments since the 1960s. A working and minimalist definition of Predictive Archaeology (P) - which becomes Preventive Archaeology in its application, that is, when it is expressed through the quantification of the risk of archaeological impact - may be that of a prediction technique for locating archaeological sites in terra incognita, based on a sample of known sites (terra cognita) or on assumptions about human location/allocation behavior in the past. A prospective view of possible short-term evolutionary scenarios is also illustrated.
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Editorial to the 30th anniversary issue of Archeologia e Calcolatori.
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In 1996 the Istituto per l’Archeologica Etrusco-Italica of the Italian National Research Council proposed, within the Cultural Heritage Special Project, the research programme “Establishment of an Archaeological Information System model and its application to ancient Caere” (“The Caere Project”). Its purpose is to use an archaeological information system to study the ancient Etruscan town of Caere, where the Institute has been carrying out surveys and excavations since 1982, together with the Superintendence of Southern Etruria. The authors illustrate an aspect of the project, related to the computerisation of the “Vigna Parrocchiale” excavation data. In fact, an innovative procedure was followed, through the use of the Standard Generalized Markup Language in order to encode the yearly excavation diaries in hypertext format. In this way, an easily transferable HTML text illustrated with photographic and graphic information was established. This type of text, which will be immediately available on-line, has allowed us to test new kinds of queries and information retrieval, in order to diachronically investigate the successive stages of our excavation and to organise the documentation relative to different areas, until finally reaching the essential association and the subsequent analysis of finds, also through the use of a statistical approach.
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In the process of creating an archaeological information system of the excavations in Cerveteri, the decision was made not only to use a more traditional database, but also to develop a recording methodology that connects the text of the excavation diaries, encoded by the application of a mark-up language (SGML), with the cartographic data. In order to query all the excavation diaries, an information retrieval application was required, with the aim to retrieve not only words but also specific meanings and contexts. In this paper the author describes the creation of an internal software application for providing information retrieval from SGML texts and of its subsequent implementation on a Web server. The paper is divided into two parts: the first describes the application itself and the concepts on which it is based and the second part discusses the technology that has been applied and the results achieved. In order to construct a querying system for the content of the excavation diaries, both ASP and VBSCRIPT technologies have been used, as they are particularly useful for constructing client-server applications for an intranet. Through applying such technologies, it has been possible to connect the textual sources with the digital cartography through specific hypertext links, allowing the visualisation of the search results in a browser such as Explorer or Netscape Navigator. This application has also been designed to allow data diffusion through the Internet.
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As Editor of the international Journal "Archeologia e Calcolatori", the author retraces the history of this editorial enterprise, which was established in 1989 by Mauro Cristofani and Riccardo Francovich. The Journal, which celebrates its 20th anniversary this year, is devoted to archaeological computing, a research sector characterised by the combining of information technologies with traditional archaeological methods. The path followed in the formulation of the editorial plan and its scientific coordination is reconstructed through various main stages: the reasons for the choice of the Journal’s title, its field of application and chronological range; the description of the contemporary international panorama, still characterised by isolated initiatives; the members of the international Scientific Committee, all representatives of the major Italian and foreign institutions; the scientific contents, with particular emphasis on the publication of special thematic issues and international conference proceedings; the archaeological computing bibliography, an information tool as well as a practical approach to systematising this young discipline. The present-day editorial policy of "Archeologia e Calcolatori" is dedicated to increasing the visibility and on-line diffusion of the Journal, and in this way furthering its original purpose: acquiring sources of information, as well as providing them.
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It has been shown in the frame of the Ancient Charm project that neutron based methods have a great potential for the investigation of cultural heritage objects. Several measurements on replicas and real objects have been performed, some still being under analysis. The main disadvantage of the 3D methods compared to their bulk counterparts is their reduced statistics, which limits sensitivity and increases the measurement time that is needed to get meaningful results. If one limits oneself to 2D space this drawback is reduced. As was shown for the 2D-PGAI the combination with a beforehand performed neutron tomography, together with some reasonable assumptions about the sample, can be used to deduce the 3D elemental distribution for not too complex objects. For relatively flat objects, like the belt mount that was shown here, the additional information obtained from a real 3D measurement may be negligible compared to the information gained from increased statistical significance. For the future the results of a full 3D scan of the real fibula and the 3D reconstruction from a NRT tomography can be expected.
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In the last decade portable devices for the analysis of Cultural Heritage (e.g. laser-scanners, spectroscopes, XRF) have reached levels of reliability that can replace benchtop instruments and enable in situ survey. One of the most effective application is the digitization and diagnosis of artworks preserved inside museums. Indeed, moving art objects or finds from the place of preservation to specific laboratories can often be difficult for several reasons such as fragility, large size, risk of damage, lack of authorizations etc. The paper shows the results of a collaboration between the IPCF-CNR of Messina and the Archaeological Museum of Lipari aimed at creating a ‘mobile laboratory’ for chemical analysis and 3D digitization of artefacts presenting different challenges. The activities have been carried out using two high-performing and non-contact tools: a laser-scanner arm by Faro (sometimes in combination with an external camera) and a handheld Raman spectrometer by Bruker. The test was performed to plan more extensive and systematic analyses of other materials preserved in Lipari, which will be soon examined as part of an ongoing agreement between the two institutions. The results of this test clearly demonstrate the advantages, both in terms of scientific results and dissemination, that can be achieved when science and the humanities dialogue for a common goal.
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In this paper we investigated the application of the optical scanning micro-profilometry based on conoscopic holography sensors for the acquisition and the surface analysis of archaeological objects with a micrometric resolution. The portability of the setup developed and its modularity allow to work in situ with a multi-scale and multi-material approach. In addition, we have developed our own tools to create a mesh from the 2D-arrays of distances collected with the resulting possibility to obtain a replica of the artwork using 3D printing technologies. We test the microprofilometer on two case studies: a fragment of an archaeological amphora, also presenting the workflow to obtain the 3D printed object, and an Etruscan bronze mirror, analyzing its surface.