1,720,976 research outputs found
A Scale-constrained Multi-source Photogrammetric Survey for Archaeological Documentation: Methodological Choices, Accuracy Assessment, and Critical Evaluation
No full textLow-cost and consumer-grade 3D surveying technologies are increasingly employed in cultural heritage documentation, particularly in archaeological contexts where ideal control conditions and professional instrumentation are often unavailable. In this contribution, we report and critically assess an integrated 3D survey conducted on Insula IV within the archaeological site of Tindari (Italy), developed under constrained technical and operational conditions. The survey was based on the combined use of UAV and terrestrial photogrammetry as the primary metric framework, selectively complemented by LiDAR data acquired with the integrated sensor of an iPad Pro 11” to improve geometric completeness in areas affected by occlusions and limited accessibility. A scale-controlled image-based workflow was adopted, where metric reliability was established through internal consistency checks and an extensive set of independent control measurements rather than through a full geodetic reference network. The resulting multi-source 3D model was evaluated in terms of metric consistency and usability for architectural and archaeological analysis. The study demonstrates that, despite non-optimal scale constraint distribution and the exclusive use of low-cost sensors, it is possible to obtain traceable and metrically coherent 3D documentation suitable for detailed planimetric restitution, elevation extraction, and stratigraphic interpretation. Rather than proposing a perspective methodology, the paper provides a transparent and reproducible account of the adopted acquisition, processing, and validation strategy, offering a practical reference for similar heritage survey projects developed under limited resources
Chapter ‘Fuori di...scala’, percezioni visive di fuori scala quali segni di riferimento urbano nel paesaggio
No full textThe here collected contributions relating to the 46th International Conference of the Representation Disciplines Teachers, organized jointly by Sapienza University of Rome, Roma Tre University, and San Raffaele Roma University, aim to offer the scientific community a reflection on the theoretical and methodological aspects related to the concept of èkphrasis, a term that, in the field of representation, concerns descriptive, analogical, and digital activities that generate new knowledge in several areas of application. The Conference aims to place at the center of the discussion an interpretation of the concept of research that, without neglecting an idea of study, protection, and enhancement of environmental and cultural heritage, focuses on the needs of contemporary society and its possible developments, making use of innovative theoretical, methodological, and operational activities, including those characterized by an interdisciplinary approach. According to this interpretation, research can also be seen as a foreshadowing of the definition and testing of experimental proposals aimed at exploring new areas of investigation: this opens up imaginative and utopian perspectives in the relationship between the sciences, the arts, and the disciplines that contribute to common goals, through the experimentation of methods, techniques, and languages for conceiving, prefiguring, designing, and representing
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
The Symbiosis of the Arts in the Technological Elements of Building Facades
No full textThis contribution analyses the existing correlations between the formal aspects and the technological and structural elements by operating a “synthesis of the Arts”, herein intended as an absolute fusion following the cultural climate in the 1950s in Italy. In this context, the main references are two examples of architectural façades built in Messina
in that period. These works were selected because of interpretations appropriately identified and assumed according to the specific peculiarities of the external configuration, namely for the characterisations deriving from using specific materials on the façade and the geometries underlying the definition of the shape. The survey activity allows to clarify the representativeness of the meanings inherent in the select-
ed works, highlighting the articulation of the external configurations as “spaces” of emotional relationship between the architecture and the context
Chapter Messina ricostruita in pietra artificiale: la grafica di palazzo Mariani per il progetto di restauro
No full textVariations 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
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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