Archeologia e Calcolatori 27 - 2016

This paper addresses the issue of standardization in the cross-comparability of different vessel assemblages. It presents a computational method for building vessel categories from the bottom up, by comparing the specified attributes of a collection of vessel-types, and grouping like with like. Thus, it provides a platform for translating vessel data which may have been classified or divided by type using one taxonomy, bringing them into communication with those categorized by another. Two different methods of measuring the similarity among vessel-types (cosine similarity and the Jaccard index) are explored, toward providing a control on the resulting ‘synthetic’ categories. An exploratory dataset, collected from published data of archaeological projects in Italy focusing on ceramic vessels of the last two centuries BCE, was used to test the performance of this approach. Project data and results are open source and are available online at https://github.com/scollinselliott/synthkat/.

The site of Mount Bego is one of the most important rock art concentrations in Europe for recent Prehistory. After a study conducted for more than 45 years by Henry de Lumley, the majority of the 4,000 engraved rocks have been positioned and the near 36,000 engravings have been drawn. The engravings were firstly attributed to Chalcolithic and Early Bronze Age, on the basis of a comparison between the engraved weapons and real weapons that have been discovered in an archaeological context. During his PhD (2012), the author carried out the first systematic geostatistical analysis of the entire corpus, bringing out a series of effects (iconographic and geographic seriation, preferential location, etc.) in the engravings distribution. Thanks to the study of superimpositions, these quantitative results allow to consider a periodization of the main families of engravings. While weapon representations appear to be the most recent layer of engravings, reticulated figures and schematic horned figures seem to be the most ancient ones. Therefore, dating on the basis of weapon representations can no longer be considered valid for the entire corpus of engravings. Besides, Mount Bego site shows early occupations, as documented by archaeological artefacts (Cardial ceramics, Chassean flints, Recent Bell Beaker ceramics, etc.) and indices of human activities (certain since ca. 2400-1800 BC). This article presents the geostatistical predicates, methods (unimodality of realization periods of engraved themes, correlations, seriation, toposeriation, etc.) and principal results on which a first periodization frame has been built.

Research on settlement dynamics is mainly based on data from archaeological field survey. This exploration method gives access to a large amount of information that enables to identify distribution tendencies and to establish a model of evolution of the settlement structure at different scales. Nonetheless, field survey data, even if chronologically dated, provide a partial record and a snapshot of the settlements. This static information lacks a certain number of parameters, which are essential to perceive the inherent evolution of the settlements and therefore to visualize it within the dynamics of the settlement trajectory networks. On the other hand, data from archaeological excavations enables to detect those phenomena. This paper proposes a methodological approach to use information collected during excavations in order to qualify and reinforce the analysis of the dynamics that rely on elements from field survey. While studying the dynamics of the settlement system during Antiquity in the Plateau lorrain (France), the use of evolving data from excavations offers solutions which balance and improve the static approach stemming from field survey data.

The study of water cults in Gaul suffers not only from a great deal of variability in the quality of the available data, which is a common issue in archaeology, but also, more specifically, from the burdening of past historiographical approaches, which contributed to conveying a distorted view of the phenomenon. Accordingly, our main problems lie in site identification and reliability assessment. Until recently this uncertainty was avoided by widening the study to all sites with at least one characteristic attribute, or conversely, by limiting the corpus to the best documented sites. It seemed necessary to develop tools that would exploit this uncertainty, to study the phenomenon in the most complete possible way. These tools take the form of a database, associated with a GIS, leading to the practical evaluation of a site potential using a calculation grid.

The understanding and representation of spatial evolution over the time are at the core of two PhDs. These studies largely rely on the comparison of diverse inventories of the same territory from tax documents and maps: terriers and compoix. These documents provide a lot of information on the structure of rural and/or urban areas. However, comparing this kind of information, which was compiled in successive periods, is sometimes difficult, especially because of frequent absence of maps related to the registers. Thanks to ANR ModelEspace’s work, it is now possible to study these documents by exploiting their topological properties: information from textual and/or planimetric sources is modelled as a graph which permits a comparison in order to analyse the spatial dynamics of land over time. That is why this method for processing spatial data is applied to the territory of Blandy-les-Tours (77) and Saint-Antonin-Noble-Val (82) to observe land tenure, social and landscape dynamics.

The Kingdom of Sicily Image Database uses new media technologies to reframe our understanding of medieval Europe by focusing on the role of the built environment for the formation of state identity in the medieval Kingdom of Sicily ruled by Norman, Swabian, Angevin and Aragonese dynasties (950-1420). The theme is important for two reasons: the significance of South Italy as a prototype of multicultural state formation and the highly fragmentary (war bombardment, earthquakes, urban transformation) state of the sites that played a central role in the power structures of this new state. A comprehensive database of historical images of monuments and cities (prints, drawings, maps, photographs, etc.) made by scholars, artists and travellers from the 15th to the 20th centuries, can enable scholars and the public to recover the appearance of the landscape, of cities, and of individual monuments prior to radical renovations or destructions. An interdisciplinary research team is conducting a systematic survey and critical cataloguing of images dispersed in the archives, museums and libraries of Italy, Europe and US.

The need for integration and sharing of data on ancient polychromies requires shared working methods and tools. This paper illustrates a first effort in the direction of testing the web-based Information System documentation for the Restoration of Yards (SICaR) of Italian Ministry of Cultural Heritage and Tourism (MiBACT). This test activity suggested some changes that have been subsequently implemented in order to record archaeological and scientific information and manage standardized data on ancient polychromy in cultural heritage documentation.

The ‘Marmora Phrygiae’ project deals with some of the main issues related to the study of ancient quarries and building sites with a systematic approach, integrating the skills of experts from different disciplines: archaeology, ancient topography, art history, architecture, geology, geophysics, chemistry, geochemistry, biology, remote sensing, computer science, and Roman law. This paper summarizes the main scientific results of the project and the computer techniques used for implementing the Marmora Phrygiae online geodatabase, a system aimed at data presentation on the web, sharing knowledge through Open Data. The Marmora Phrygiae database dynamically stores the results of archaeological research and archaeometric analyses in order to publish them online at the end of the project: after a registration process, free access to available data will be allowed. The same database is also interfaced to Geoserver, a web-oriented cartographic engine, in which the coordinates of each feature (monuments, quarries, artefacts, stone samples), acquired by a high-precision topographic GPS, are stored. This solution allowed acquiring important new data on the marble extractive district of Hierapolis, the organization of the urban building sites during the Roman Imperial age and the Early-Byzantine period, and their dynamics of supplying stone materials within the overall ancient marble extractive district of south-western Turkey.

This paper presents a territorial analysis focused on a sample area in the inner region of Abruzzo, delimited by the Gran Sasso and the Sirente mountain ranges and characterised by strong geomorphological irregularities. Archaeological data from the Final Bronze Age/ Early Iron Age to the beginning of the Romanization process are analysed through a computer-based approach, using CAD, DBMS and GIS. Published data about this region are quite disjointed, both for methodological reasons and for various interferences in the archaeological record. These aspects influenced the landscape analyses proposed in previous studies and the hypothesis about the territorial exploitation patterns during the pre-Roman times. Research has been mainly concentrated on sites with better visibility, such as fortified hilltop sites and necropolises, frequently compared to the Roman settlement pattern, based on valley floor sites along the main pathways. Nevertheless, recent surveys suggest that these data should be reconsidered, taking into account both the presence of other kinds of sites (such as the Iron Age/Archaic period small rural sites localised in the valley floor) and continuity in the settlement pattern up to Roman times. The available archaeological data have been processed within a GIS, in order to investigate placement and visibility/intervisibility factors in hilltop fortified sites, starting from an expressly projected DEM. The territorial sample has been filtered using qualitative and quantitative parameters, proving that hilltop sites during the pre-Roman times were likely to control the natural catchment area. In Roman times, this pattern lost its mainly defensive character, with hilltop sites being abandoned, and was incorporated in the so-called ‘paganus-vicanicus’ system, connected to the administrative subdivision gravitating on urban centres (coloniae and then municipia) and on new monumental cult places.

The city of Falerii Novi is situated on the lowest eastern slopes of Monti Cimini, in the volcanic area on the western side of Tiber Valley, in the district of Fabrica di Roma (VT). The ancient Roman town was founded in 241 BC, the same year of the occupation and destruction of the ancient Faliscan town of Falerii Veteres (now Civita Castellana). Recent geophysical and lidar surveys, conducted between 1998 and 2008 by S. Keay and R. Opitz, allowed the reconstruction of the ancient city plan characterized by an orthogonal grid that was organized into 69 insulae. Thanks to geophysical surveys in 2008, along with the study of aerial photographs by G. Scardozzi in 2004, it was possible to identify a large Roman domus with slightly different orientation to the northern walls of the ancient city. These data validated the information from the excavation campaigns conducted between 1821 and 1830 and between 1969 and 1975. The research aims at integrating the data from the landscape surveys in the area of Civita Castellana in 1994, which were carried out by the Soprintendenza per i Beni Archeologici dell’Etruria Meridionale, with data derived from the analysis of aerial photointerpretation. The objective was to define, with precision, new elements for the reconstruction of the ancient topography of Falerii Novi.

Over the past few decades Geographical Information Systems in archaeological practice and above all in urban archaeology have become a standard tool for understanding the development of late antique towns. This paper analyses the city of Ravenna as a case-study, illustrating some standard and innovative GIS applications in a city characterised by non-systematic archaeological research. GIS helped us to systematize archaeological investigations and to guide city planning. New important excavations, in Piazza Kennedy, with the discovery of the 5th c. church of S. Agnese, and other smaller trenches in the city centre, add a fundamental collection of archaeological data. The creation of new chronological evaluation maps highlighted empty research zones in the old city, where urban archaeology should focus new excavations and archaeological evaluation projects.

The paper presents and discusses results from the integration of various methods of geophysical prospection on the plateau between the Via Appia and the Via Ardeatina on the ancient suburb of Rome. The use of large-scale magnetometry, georadar and electromagnetic survey in an area of particularly dense archaeological remains is a highly effective methodology for revealing important information on previously unknown archaeological features. Of particular interest in this case is the comparison between geophysical data and the results of previous excavations, and newly-targeted test investigations that suggest the survival of the documented but previously undiscovered basilica of Pope Damasus as well as unknown catacomb tunnels at San Callisto and elsewhere on the plateau.

The model of the Tuscanic Temple of Uni in Marzabotto, recently discovered, has been a common ground for engineering and archaeological studies, thanks to the processing of a Building Information Modeling (BIM). Beside the historic and archaeological analysis, the innovation of this study concerns the examination of the Etruscan temple as a three-dimensional building, with the use of technologies which impact on the architectural reliability of the model, and the design of a new method of Experimental Archaeology based on a virtual approach. The uniqueness of this approach lies in the study of original elements at the starting point of the building process, that consist in foundations or spoliated structures (i.e. negative evidences), over the clues from the historical and scientific literature. To better define this distinctive working process, the expression ArchaeoBIM has been proposed. With this expression we underline the common BIM matrix in the data management through integrated analytical models, applied to a particular aspect of the archaeological research.

The author illustrates the graphic documentation process that has been developed during the excavations at Sofiana in the Municipality of Mazzarino (CL, Sicily), as part of the Philosophiana Project. The project started in 2012 thanks to the cooperation between the Universities of Cornell, Cambridge and Messina and since the beginning it was necessary to document the excavations speedily, but without the loss of measurement accuracy featuring a well-established methodology of archaeological survey. The pipeline of the work has consisted in digitising archaeological contexts in a GIS platform from an orthophoto produced with 3D photomodeling. This process resulted in an optimal documentation according to the project requirements. The author also focuses on the importance of graphic documentation, which should be as important as the excavation process itself. Despite archaeology having a long tradition in the field of archaeological survey, this process is often perceived as a necessity rather than a key research tool. For this reason surveys are not always carried out by a professional figure, causing a lack of homogeneity in the final data.

For its unique features and size, the Hadrian’s Villa site has always been the object of studies and investigations. Italian and foreign institutions, as well as research organizations, are working together with the common purpose of understanding and protecting the universally recognized ensemble of buildings and works of art, belonging to the World Heritage List since 1999. Within this interdisciplinary framework, over the past decade, new technologies for digital documentation in the field of cultural heritage have gained more importance with respect to the traditional field of architectural/archaeological surveying. Through expeditious surveying (with no physical contact with the object and different measurement resolutions) several 3D reality-based models were created in the last years, with special regards to the Villa’s pavilions characterized by more complex and daring shapes. The aim was a better understanding of specific problems in those cases where archaeological investigation methods may take advantage of a correct and complete digital surveying of elevations in general and in particular of vaulted spaces, intrados and extrados surfaces. 3D digital models of complex roofing, as shown in the case study of the Small Baths, provide additional advantages concerning the use of finite elements analysis (FEA). Both the digital models (current state of conservation and reconstruction hypothesis) underwent to an accurate stress analysis that enables further achievements for site conservation and management and for ancient constructive and designing techniques.

The author illustrates some recent events promoted in Orvieto (the ancient Etruscan town of Volsinii) by the Fondazione per il Museo ‘Claudio Faina’. After a brief description of the scope and aims of the Foundation, which was established in 1957, attention is focused on some exhibition projects that make use of computer-based technologies to illustrate and disseminate information on the Museum collections, encouraging a greater interaction between scholars and the general public. In particular, the author focuses upon the recent exhibition ‘Voci ritrovate. Archeologi italiani del Novecento’. The exhibition was conceived by ‘digging’ in the Archives of the Foundation, a research work that enabled the ‘discovery’ of a series of tapes in which the voice of some of the greatest Italian archaeologists and historians of the last century were collected and preserved. Original Rai radio recordings of the Sixties and Seventies of the 20th century enrich the collection and a dedicated website allows visitors to listen to some valuable considerations on the profession of archaeologist. The scope of the Foundation is now to implement the website and create a digital sound archive.

Promoting archaeology online for the general public can be considered one of the new jobs archaeologists are called upon in present day society. Thanks to modern technologies, it is possible to reach out to different groups than those who regularly follow traditional media, such as books or television. Social media and digital platforms, in fact, disrupt the dynamics of mass media communication, changing it from a ‘one-to-many’ approach to a new ‘many-to-many’ form, in which complex networks are created and it is possible to involve a wider segment of public. Any kind of audience development strategy based on digital social media requires a carefully crafted approach with mid- to long-term goals. This paper focuses on the methodologies, the tools and the aims on which an effective communication plan for archaeological museums, institutions and research groups should be based. The paper starts with a brief overview of digital public archaeology in Italy and proceeds with a close examination of the most common social media currently used to promote archaeology online, illustrating their specific characteristics and features, and introducing ways to integrate them within a wide-ranging communication plan. The paper stresses the importance of outlining clear objectives, defining specific targets accordingly, and thus choosing the best digital platform or platforms. Finally, the paper examines some of the most useful measurement tools for social media and websites, which allow gathering and analysing quantitative data on the engagement of our online public, but also provide significant qualitative data that can help address any kind of issues in our communication and better understand our audience.

On 9 May 2016 a group of core partners of the EAGLE project founded IDEA - The International Digital Epigraphy Association in order to maintain, perpetuate and improve this ground breaking project. IDEA represents the most fluid, lean, and efficient way to preserve EAGLE’s legacy and it will carry forward the work established by the EAGLE former partners. The goal of the association is to promote the use of advanced methodologies in research, study, enhancement, and publication of “written monuments”, beginning with those of antiquity, in order to enhance their knowledge at multiple levels of expertise, from that of specialists to that of the occasional tourist. Furthermore, scope of the association is to expand and enlarge the results of EAGLE providing a sustainability model to ensure the long-term maintenance of the project results and to pursue its original aims. IDEA first General Assembly was held in Pisa on 28 September 2016.