1,720,987 research outputs found
Gli enti locali e la difesa del principio di sussidiarietà: quali prospettive per un accesso diretto alla Corte costituzionale?
No full textLe autonomie locali dopo la crisi economica: Italia e Spagna a confronto
Full text linkDalla crisi economica alla crisi delle autonomie locali. L'identità istituzionale e le modifiche relative alla configurazione degli organi delle autonomie locali. La nuova disciplina delle funzioni amministrative e delle loro modalità di esercizio. Crisi economica e controlli sugli enti locali. L'autonomia locale da principio fondamentale a "privilegio" da tagliare: quali limiti per il legislatore statale?Dalla crisi economica alla crisi delle autonomie locali. L'identità istituzionale e le modifiche relative alla configurazione degli organi delle autonomie locali. La nuova disciplina delle funzioni amministrative e delle loro modalità di esercizio. Crisi economica e controlli sugli enti locali. L'autonomia locale da principio fondamentale a "privilegio" da tagliare: quali limiti per il legislatore statale?LUISS PhD Thesi
Segregation discovery in a social network of companies
Full text linkWe introduce a framework for a data-driven analysis of segregation
of minority groups in social networks, and challenge it on a complex
scenario. The framework builds on quantitative measures of segregation,
called segregation indexes, proposed in the social science literature.
The segregation discovery problem consists of searching sub-graphs and
sub-groups for which a reference segregation index is above a minimum
threshold. A search algorithm is devised that solves the segregation problem.
The framework is challenged on the analysis of segregation of social
groups in the boards of directors of the real and large network of Italian
companies connected through shared directors
Segregation discovery in a social network of companies
Full text linkWe introduce a framework for the data-driven analysis of social segregation of minority groups, and challenge it on a complex scenario. The framework builds on quantitative measures of segregation, called segregation indexes, proposed in the social science literature. The segregation discovery problem is introduced, which consists of searching sub-groups of population and minorities for which a segregation index is above a minimum threshold. A search algorithm is devised that solves the segregation problem by computing a multi-dimensional data cube that can be explored by the analyst. The machinery underlying the search algorithm relies on frequent itemset mining concepts and tools. The framework is challenged on a cases study in the context of company networks. We analyse segregation on the grounds of sex and age for directors in the boards of the Italian companies. The network includes 2.15M companies and 3.63M directors
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
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