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Semantic Web Challenges - 5th SemWebEval Challenge at ESWC 2018, Heraklion, Greece, June 3-7, 2018, Revised Selected Papers
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Desambiguación de topónimos en la recuperación de información
No full textTesis doctoral (con mención de doctorado europeo) en Informática realizada por Davide Buscaldi y dirigida por el doctor Paolo Rosso (Univ. Politécnica de Valencia). El acto de defensa de la tesis tuvo lugar en Valencia en Octubre de 2010 ante el tribunal formado por los doctores: Paul David Clough (University of Sheffield), Ross Purves (Universität Zürich), Emilio Sanchis Arnal (Univ. Politécnica de Valencia), Mark Sanderson (Royal Melbourne Institute of Technology), Diana Santos (Sintef-ICT, Oslo). La mención europea se obtuvo a través de una estancia en el FBK-IRST (Italia) bajo la dirección de Bernardo Magnini. La calificación obtenida fue de Sobresaliente Cum Laude.Ph.D. thesis (European doctorate mention) in Computer Science written by Davide Buscaldi under the supervision of Dr. Paolo Rosso (Univ. Politécnica de Valencia). The author was examined in Valencia in October 2010 by a panel composed by the following doctors: Paul David Clough (University of Sheffield), Ross Purves (Universität Zürich), Emilio Sanchis Arnal (Univ. Politécnica de Valencia), Mark Sanderson (Royal Melbourne Institute of Technology), Diana Santos (Sintef-ICT, Oslo). The European mentions was received after a 3 months stage at the FBK-IRST (Italy) under the guidance of Bernardo Magnini. The obtained grade was Cum Laude.Thesis supported by a FPI Grant of the Valencian government (ref. BFPI06/97)
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
Approaches to disambiguating toponyms
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Many approaches have been proposed in recent years in the context of Geographic Information Retrieval (GIR), mostly in order to deal with geographically constrained information in un-structured texts. Most of these approaches share a common scheme: in order to disambiguate a toponym
t
with
n
possible referents in a document
d
, they find a certain number of context toponyms
c
0
,...,
c
k
that are contained in
d.
A score for each referent is calculated according to the context toponyms, and the referent with the highest score is selected. According to the method used to calculate the score, Toponym Disambiguation (TD) methods may be grouped into three main categories, as proposed by [7]:
•
map-based:
methods that use an explicit representation of toponyms on a map, for instance to calculate the average distance of unambiguous context toponyms from referents;
•
knowledge-based:
methods that exploit external knowledge sources such as gazetteers, Wikipedia or ontologies to find disambiguation clues;
•
data-driven
or
supervised:
methods based on machine learning techniques.
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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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