1,720,973 research outputs found
Rilievo, Ricostruzione e Rappresentazione tridimensionale in ambito archeologico. Fruizione e valorizzazione virtuale dell’area forense di Nora.
Full text linkIl presente progetto di ricerca propone una ricostruzione 3D del foro romano della città di Nora (Sardegna, CA) contestualizzata sia alla fase originaria del monumento (il cd. Periodo IV, datato 40/20 a.C.- 200/225 d.C.), relativa alla costruzione del complesso, sia ad una fase successiva (il cd. Periodo V, evento A, datato 220/225 d.C.), connessa a mutamenti dell’assetto monumentale dell’area.
L’obiettivo di questa ricerca consiste nel ricostruire tutte le fabbriche costruite lungo i quattro lati della piazza romana, riferite ai due periodi cronologici oggetto di studio (Periodo IV e Periodo V, evento A), proponendo, in aggiunta (laddove possibile), una ricostruzione degli interni, dichiarando l’attendibilità delle ipotesi elaborate.
In generale, per gestire la fase ricostruttiva dell’intero complesso è stata adottata la metodologia dell’Extended Matrix, un approccio sviluppato all’interno dal Virtual Heritage Laboratory (VHLab) del CNR ISPC di Roma che permette di mappare il processo ricostruttivo, archiviando i dati all’interno di un grafo e rappresentando visivamente anche i livelli di affidabilità delle ricostruzioni. L’impiego di questo metodo e delle soluzioni software ad esso connesse ha inoltre permesso la condivisione online del modello 3D, tramite il framework Aton (anch’esso sviluppato all’interno del VHLab), sfruttando differenti modalità di visita e molteplici strumenti di interazione.The project consists of the 3D reconstruction of the Roman forum of Nora (Sardinia, CA) focusing on two chronological periods: the construction of the whole complex (the so-called Period IV, dated 40/20 B.C.- 200/225 A.D.) and a subsequent phase of restoration and renewal (the so-called Period V, event A, dated 220/225 A.D.).
The research proposes the 3D reconstruction of all the structures built along the four sides of the Roman square and, when possible, of the internal parts, declaring the reliability of the hypothesis developed.
In general, the Extended Matrix methodology was used to manage the reconstructive phase of the entire forum. This approach, developed by the Virtual Heritage Laboratory (VHLab) of the CNR ISPC in Rome, allows to map the reconstructive process by storing data in a graph and by visually representing them through different levels of reliability. The software solutions incorporated within the EM method allow also to share the 3D model online, with the Aton framework, using different mode and tools to interact with the 3D scene
Il Tempio romano di Nora: dallo scavo alla valorizzazione
Full text linkIn 2008 University of Padova started a new, systematic project of excavation and promotion of the area occupied by the ancient worship building known as 'Tempio romano'. The excavation allowed to specify and increase the knowledge of the middle empire sanctuary and also to observe an articulated stratigraphic sequence ranging from the archaic levels to the late antique ones. The results of the research will soon be published in the series «Scavi di Nora»; furthermore, the University has started a conservation and promotion project aimed to restore all the middle empire structures; the use of gravels with different colours will have three specific targets: the preservation of the monument, the recognition of the function of different areas and a better understanding of the whole complex
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
ATON: An Open-Source Framework for Creating Immersive, Collaborative and Liquid Web-Apps for Cultural Heritage
Full text linkThe web and its recent advancements represent a great opportunity to build universal, rich, multi-user and immersive Web3D/WebXR applications targeting Cultural Heritage field—including 3D presenters, inspection tools, applied VR games, collaborative teaching tools and much more. Such opportunity although, introduces additional challenges besides common issues and limitations typically encountered in this context. The “ideal” Web3D application should be able to reach every device, automatically adapting its interface, rendering and interaction models—resulting in a single, liquid product that can be consumed on mobile devices, PCs, Museum kiosks and immersive AR/VR devices, without any installation required for final users. The open-source ATON framework is the result of research and development activities carried out during the last 5 years through national and international projects: it is designed around modern and robust web standards, open specifications and large open-source ecosystems. This paper describes the framework architecture and its components, assessed and validated through different case studies. ATON offers institutions, researchers, professionals a scalable, flexible and modular solution to craft and deploy liquid web-applications, providing novel and advanced features targeting Cultural Heritage field in terms of 3D presentation, annotation, immersive interaction and real-time collaboration
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Il teatro romano di Aquileia: l’individuazione dell’edificio e lo scavo della cavea
Full text linkThe paper provides a preliminary report on the 2015-2017 excavations carried out by the Department of Cultural Heritage, Università di Padova, in the area named Fondi ex Comelli-Moro, in Aquileia. The investigations led to the discovery of the theatre of the ancient city, whose approximate location had been previously conjectured by Luisa Bertacchi. Following archive research and geophysical prospections, the excavations focused on the area occupied by the cavea foundations, revealing their overall dimensions (width of about 95 m) and architectural layout: the summa and media cavea were supported by series of radial walls, while the ima cavea was made of one single, bulky concrete casting. The excavation also provided insights on the area surrounding the theatre and on the activities which were carried out within the building once it ceased to be used for performances, particularly metalworking
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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