124,868 research outputs found
Virtualizing Ancient Rome: a new hybrid digital model of late-antique Rome
No full textThe project discussed in this presentation forms an important part of the Rome Reborn Project, an international effort to create a real-time digital model of ancient Rome. The spatial limits of the Rome Reborn model will be the area enclosed by the late-antique Aurelian Wall; its temporal limits will be the Iron Age (10th century B.C.), when the city began to be settled, and the Gothic Wars (6th century A.D.), when the city suffered severe physical damage and significant depopulation. For a variety of practical reasons, work on the model commenced in 1997 with modeling of the late-antique phase (ca. 400 A.D.), which represents the climax of the development of the ancient city in terms of its urban fabric and population. The approach to modeling has been to work out from the city center in the Roman Forum, a multi-purpose space dedicated to political, economic, religious, and entertainment activities
L'interrogazione digitale di plastici urbani
No full textIl modello fisico di una città rappresenta un sistema attraverso il quale conservare alcune delle informazioni che aiutano nella lettura di una realtà che in alcuni casi può non essere più esistente. In questo caso il plastico urbano è come un contenitore di dati, alcuni dei quali immediatamente percepibili ed altri più nascosti per motivi di scarsa accessibilità del manufatto, complessità formale del modello fisico o semplicemente per un mancato trasferimento di informazioni dal costruttore del modello a chi ne usufruisce. In tutti i casi la migliore soluzione per ottenere tali informazioni è fornita dalla digitalizzazione tridimensionale del modello fisico e la sua successiva interrogazione. Il principale limite di questo processo è legato alla necessità di ottenere modelli digitali con un livello di precisione coerente con le caratteristiche geometriche del modello fisico e la tipologia di informazioni che si vuole ottenere. Nell’articolo viene descritto un caso di studio emblematico, la digitalizzazione del ‘Plastico di Roma Antica’, un modello fisico di grandi dimensioni caratterizzato da una geometria complessa, che pone in evidenza una serie di problematiche di acquisizione e di gestione dei dati rilevati. Viene presentato un possibile esempio di interrogazione del modello digitale finalizzato all’identificazione delle informazioni non valutabili direttamente dal modello fisico e le potenzialità insite nell’uso di un modello procedurale
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
Virtualizing ancient Imperial Rome: from Gismondi's physical model to a new virtual reality application
No full textThis paper deals with two, related topics: the acquisition and recovery of information 'trapped' in the geometry of an historical artifact; the employment of this form of 'intangible heritage' as an historical source on a par with more explicit sources such as ancient drawings, books, archaeological excavations, etc. This study relates to the construction of a virtual model of ancient Rome within the framework of the international project known as "Rome Reborn 1.0" (www.romereborn.virginia.edu). It exploits intangible information in order to make a plausible reconstruction of ancient Rome, currently one of the largest virtual models ever developed in the field of cultural heritage
Dispelling the Myths Behind First-author Citation Counts
No full textWe 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
Three-dimensional acquisition of large and detailed cultural heritage objects
No full textCultural heritage digitization is becoming more common every day, but the applications discussed in the literature address mainly the digitization of objects at a resolution proportional to the object size, using low resolution for large artifacts such as buildings or large statues, and high resolution for small detailed objects. The case studied in this paper concerns a huge physical model of imperial Rome (16 × 17.5 m) whose extremely small details forced the use of high resolution and low noise scanning, in contrast with the long range needed. This paper gives an account of the procedures and the technologies used for solving this “contradiction”
ROME REBORN – VIRTUALIZING THE ANCIENT IMPERIAL ROME
No full textFrom 1997 to 2007 an international effort involving research groups both in US and Italy, developed a virtual model of ancient Rome, as it appeared in 320 AD. The primary purpose of the project was to visually present theories and hypotheses about how the capital of the Roman Empire appeared at the peak of its development. The model is therefore a representation of the state of our knowledge (or lack of it) about the urban topography of ancient Rome. In order to create the model several topographic and historical sources were used. The standard sources such as ancient plans, references in historical texts, archaeological studies of past scholars, have been used for the well documented monumental buildings, such as the Colosseum and the Roman Forum. For most of the vernacular architecture (i.e. the small “filler ” buildings in between the monumental ones), no many sources are available. Thus the virtual model have been inspired by the famous 1:250 physical model “Plastico di Roma Antica ” conserved at “Museo della Civiltà Romana”, in Rome that have been surveyed at high resolution and transformed in a digital model suitable for standard virtual reality applications. This paper overstress this point of the whole project, describing the process from the physical to the digital representation of the city. 1
Pragmatic Case Studies as a Source of Unity in Applied Psychology
No full textTo unify or not to unify applied psychology: that is the question. In this article we review pendulum swings in the historical efforts to answer this question—from a comprehensive, positivist, “top-down,” deductive yes between the 1930s and the early 60s, to a postmodern no since then. A rationale and proposal for a limited, “bottom-up,” inductive yes in applied psychology is then presented, employing a case-based paradigm that integrates both positivist and postmodern themes and components. This paradigm is labeled “pragmatic psychology” and, its specific use of case studies, the “Pragmatic Case Study Method” (“PCS Method”). We call for the creation of peer-reviewed journal-databases of pragmatic case studies as a foundational source of unifying applied knowledge in our discipline. As one example, the potential of the PCS Method for unifying different angles of theoretical regard is illustrated in an area of applied psychology, psychotherapy, via the case of Mrs. B. The article then turns to the broader historical and epistemological arguments for the unifying nature of the PCS Method in both applied and basic psychology.Peer reviewe
Dr. Edwin Wright Collection: Author Unknown
No full textNotes - The author relates several short stories about his neighbours including Alex McDonell, homesteading and life around Meanook and Athabasca (1 page
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe 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
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