1,720,959 research outputs found
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
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
Mondi di Wittgenstein. Metaontologia del "Tractatus" e teoria dei truthmakers di Armstrong
Full text linkLa “svolta ontologica” che contraddistingue l’odierna filosofia analitica ha consentito, attraverso il rigore logico e argomentativo, la ripresa di temi e problemi della bimillenaria tradizione filosofica. In particolare, grazie al confronto con uno dei principali interpreti di tale svolta, David Armstrong, si è analizzata l’ontologia e la metafisica del "Tractatus logico-philosophicus" attraverso le nozioni di: mondo contratto, combinatorialismo e truthmaker. Nel dettaglio, si è “sollevato” il problema riguardo la priorità ontologica tra fatti e oggetti semplici. Tale tensione si è rivelata insuperabile attraverso la sola analisi ontologico-metafisica: da un lato, infatti, ai fini della sensatezza di una proposizione, è stata assegnata la priorità ontologica agli oggetti; dall’altro, invece, gli oggetti si sono mostrati come “semplici finzioni”, frutto di un preciso processo di astrazione dai rispettivi fatti. La radice del problema è stata, pertanto, individuata in questioni di natura metaontologica: solamente attraverso l’analisi del predicato “esiste” è stato possibile superare la tensione sopra indicata. In particolare, grazie alla truthmaking question “cosa, nel mondo, rende vera una proposizione p?”, è stato possibile assegnare il primato ontologico agli stati di cose sussistenti. Al tempo stesso però, simulando il “catalogo universale” di un abitante di uno dei mondi contratti, si è mostrato che la dipendenza ontologica degli oggetti non ne implica necessariamente un’esistenza finzionale. L’articolo, pertanto, conduce un’analisi esegetica e teoretica del "Tractatus" attraverso gli strumenti dell’odierna metafisica analitica
Epistemic logic and CERMINE: a logical model for automatic extraction of structured metadata
Full text linkIn this article we develop a logical model for automatic extraction of structured metadata. We introduce a new predicate ???? – reads ‘extract’ – and a structure ???? to syntactically and semantically define metadata extracted with any automatic metadata extraction system. These systems will be considered, in the logical model created, as knowledge extraction agents (henceforth KEA). In this case KEA taken into consideration is CERMINE, a comprehensive open-source system for extracting structured metadata from scientific articles in a born-digital for
Epistemic logic for metadata modelling from scientific papers on Covid-19
Full text linkThe field of epistemic logic developed into an interdisciplinary area focused on explicating epistemic issues in, for example, artificial intelligence, computer security, game theory, economics, multiagent systems and the social sciences. Inspired, in part, by issues in these different ‘application’ areas, in this paper I propose an epistemic logic T for metadata extracted from scientific papers on COVID-19. More in details, I introduce a structure S to syntactically and semantically modelling metadata extracted with systems for extracting structured metadata from scientific articles in a born-digital form. These systems will be considered, in the logical model created, as ‘Metadata extraction agents’ (MEA). In this case MEA taken into consideration are CERMINE and TeamBeam. In an increasingly data-driven world, modelling data or metadata means to help systematise existing information and support the research community in building solutions to the COVID-19 pandemic
"Cattive argomentazioni: come riconoscerle" di Francesco F. Calemi e Michele Paolini Paoletti
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