1,721,227 research outputs found
Architettura industriale prefabbricata e sostenibilità: dalla valutazione energetico ambientale alle strategie di riqualificazione
No full text
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
Building Heritage. Introduzione
No full textIl gran numero di articoli indirizzati a questa sessione testimonia il notevole interesse che la nostra comunità scienti ca continua a
manifestare per i temi legati allo straordinario patrimonio che forma le nostre città: interesse scienti co che in più occasioni è volto a
coniugare l’analisi ed il progetto con la conservazione e la valorizzazione. Ciò conferma l’importanza economica e sociale del settore,
legato agli studi ed agli interventi sull’architettura esistente e diff uso su una grande varietà di temi aggiornati e complessi che mostrano
la vitalità del nostro ambito disciplinare e delle giovani leve. Non può non apprezzarsi il fatto che queste si applichino con paziente
coraggio malgrado le note diffi coltà di accesso che l’Università pone.
Tra i temi oggetto delle relazioni sono stati da me raccolti in cinque grandi gruppi, ripartizione utile per individuare un po’ più
chiaramente alcune delle linee di ricerca che caratterizzano la sessione
Proposta metodologica per un miglioramento energetico compatibile dell'architettura storica palermitana
No full textIl contributo espone una proposta per analizzare le prestazioni energetiche dell’architettura storica di Palermo e le sue potenzialità di miglioramento. A tal ne l’impostazione tipologica della normativa concernente il patrimonio cittadino è coniugata con il metodo di “categorizzazione” sviluppato dal progetto europeo Effesus. Le possibilità e i limiti di questo approccio sono discussi anche in relazione allo studio di tre edifici, rappresentativi di alcune delle categorie edilizie proposte per l’architettura storica palermitana
Reverse Engineering for the Structural Analysis of Heritage Constructions
Full text linkReverse engineering is a process in which an existing object is studied to understand how it works and potentially improve it. In the Cultural Heritage (CH) sector, 3D scanning and parametric modeling tools have made reverse engineering a viable approach for studying and understanding historical buildings. This paper presents a method for studying the displacements and deformations in historical masonry buildings over time using reverse engineering techniques, such as Terrestrial Laser Scanning (TLS) and parametric 3D modeling. The proposed workflow is divided into three phases. First, a digital survey is conducted to create a 3D point cloud that accurately represents the current condition of the building's structural elements. This point cloud is called the Basic 3D Model (B3M). Next, the point cloud is reconstructed as a 3D NURBS topological model, and specific visual programming algorithms are used to cancel out the hypothetical deformations that have occurred over time. This model is called the Ideal 3D Model (I3M) because it represents the theoretical, undeformed configuration of the structures. Finally, the I3M is compared to the B3M to identify the deviation between the deformed and undeformed configurations. This comparison allows for determining the structural behaviour of the building's parts and evaluating the overall condition of the building to guide interventions for structural improvement. The method has been applied to several case studies in Italy, including masonry columns, façades, and timber trusses
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
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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