1,720,980 research outputs found
The Role of Semantic Information in Egocentric and Allocentric Spatial Representations Processes
No full textIl ruolo delle informazioni semantiche nella codifica spaziale egocentrica ed allocentrica durante l’invecchiamento.
No full textGoing 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
Virtual Agents and Proxemic Distances: How Social Interactions Affect Our Spatial Representation
No full textProxemic distance regulation allows us to
understand, through nonverbal communication, how people
psychologically represent the social space they maintain from
others. For example, in comfortable interactions, the more
familiar people feel with the interactants, the more they tolerate
their spatial proximity. By contrast, in uncomfortable
interactions, the more people feel unfamiliar with the
interactants, the more they maintain a larger distance from
them. Recent research has also shown that the proximity of
others modulates the processing of objects in a social space. This
suggests that the areas of social interaction between individuals
may have a different effect on the processing of spatial context
stimuli. According to the literature on spatial memory, we use
egocentric (subject to object) and allocentric (object to object)
reference frames to represent the position of stimuli in the space,
even if they are individuals. As everyday communication is
becoming increasingly digital, it is worth investigating how the
complexity real-world social interactions can be reproduced in
the virtual world. Our aim was to verify whether proxemic
distance (intimate and personal) between virtual agents could
affect the way we represent spatial stimuli according to
reference frames. To this end, participants performed a
modified version of the Ego-Allo task, in which objects were
located between two virtual agents, who could be at intimate or
personal proxemic distance from each other. We hypothesized
that if spatial memory of stimuli is influenced by proxemic
distance between interactants, then intimate and personal social
space should produce a different performance in terms of
egocentric and allocentric representations. Results showed an
egocentric advantage when objects were placed between the
agents at an intimate proxemic distance, whereas there was no
effect in the personal space condition. Investigating this aspect
is crucial to better understand how social dynamics, which are
automatically activated in a real-world context, can also be
reproduced in a digital context predominant in our times
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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