1,720,961 research outputs found
On the finite representation of linear group equivariant operators via permutant measures
Full text linkRecent advances in machine learning have highlighted the importance of using group equivariant non-expansive operators for building neural networks in a more transparent and interpretable way. An operator is called equivariant with respect to a group if the action of the group commutes with the operator. Group equivariant non-expansive operators can be seen as multi-level components that can be joined and connected in order to form neural networks by applying the operations of chaining, convex combination and direct product. In this paper we prove that each linear G-equivariant non-expansive operator (GENEO) can be produced by a weighted summation associated with a suitable permutant measure, provided that the group G transitively acts on a finite signal domain. This result is based on the Birkhoff–von Neumann decomposition of doubly stochastic matrices and some well known facts in group theory. Our theorem makes available a new method to build all linear GENEOs with respect to a transitively acting group in the finite setting. This work is part of the research devoted to develop a good mathematical theory of GENEOs, seen as relevant components in machine learning
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
CIS-R e AIMIT nell'analisi micro-processuale della relazione terapeutica: due prospettive a confronto
No full textIntroduzione. Se si considerano la relazione terapeutica nei termini di un processo di reciproca sintonizzazione e l'alleanza come il prodotto di continue variazioni, concettualizzabili in termini di rotture e riparazioni nella sintonia interpersonale (Safran & Muran 2000), ne consegue che per valutarne la qualità è necessario osservare il cosiddetto "livello locale" dell'interazione (BCPSG; 2012), adottando come unità di osservazione il singolo scambio comunicativo. Obiettivo: Il presente contributo fa parte di una serie di studi (Gentile et al, 2009; Colli, et al, 2010-2011; Fassone et al, in Liotti e Monticelli, 2014) orientati a porre in relazione l'andamento della relazione in termini di rotture e riparazioni dell'alleanza con la coordinazione dei processi motivazionali interpersonali. Metodo: La Collaborative Interactions Scale (CIS-R; Colli et al, 2009, 2014) e l’Analisi degli Indicatori delle Motivazioni Interpersonali nei Trascritti (AIMIT; Liotti e Monticelli 2008) sono due strumenti di analisi dei trascritti sviluppati all'interno di cornici teoriche differenti, ma con un interesse comune nello studio della relazione terapeutica a livello micro-processuale. 60 sedute di psicoterapia sono state analizzate in doppio cieco con le due metodologie sopra citate. Risultati: I risultati pongono in relazione la coordinazione degli asseti motivazionali su un registro collaborativo-paritetico con una miglior qualità dell’alleanza. Tali risultati saranno discussi alla luce degli aspetti di convergenza e delle principali differenze teoriche tra i due strumenti e tra le prospettive teoriche da cui sono derivati. Conclusioni: In linea generale lo studio conferma le ipotesi che scambi incentrati sul sistema collaborativo paritetico prevalgano nelle interazioni collaborative, mentre le rotture siano imperniate attorno a scambi competitivi. Tuttavia pare esserci una maggiore varietà nei processi di sintonizzazione interpersonale in cui entrano in gioco il rango nei meccanismi di ripristino dell’alleanza e non solo nelle rotture della stessa; l’accudimento e l’attaccamento nei momenti di empasse oltre che nei processi collaborativi
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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