1,721,029 research outputs found
Emergenza, senso, computazione. Note su "La Logica aperta della mente" di Ignazio Licata.
No full textLa nozione di apertura logica è oggi al centro di un fitto e articolato dibattito che coinvolge figure disciplinari differenti. Il testo di Ignazio Licata ne indaga alcune delle principali conseguenze epistemologiche nel contesto delle scienze cognitive e della nuova fisica dei processi emergenti
Ignazio Licata: The Latest Magna Graecia’s Natural Philosopher
No full textHe states he is not so much interested in discovering “how God made the World” as in how our theories describe it and are interconnected, in search for a unitary vision between mind and matter. Endowed with a physical intuition faster than any calculation, he can shift with self-assurance from Cosmology to Information Theory, from Physics at Planck scale and non-locality Geometry to Neurocomputing. His models are E. Majorana, L. Landau, W. Heisenberg, R. Feynman e F. Dyson, but his Damascus road has been D. Bohm vision. As for him “God always quantizes, but does not play dice, at all”. Physics – he says - is a way of life. With a passionate love for culture and music, Ignazio Licata is one of the last natural philosopher, but his language is that of non-commutative geometries, path integrals and renormalization group
Quantum information and statistical inference
No full textThe chapter presents some recent results on the relations between classical expected Fisher information and quantum counterparts such as Helstrom information and Wigner-Yanase skew information. The results have relevant application in the evaluation of the efficiency of an unbiased estimator of the parameter of interest (that one that specifies the state of the system) since they lead to approximate quantum Cramér-Rao bounds
Relativistic Quantum Information
No full textRelativistic quantum information is one of the most exciting fields of physics today. Not only does it open possibilities for new forms of computing but it also calls into question the peaceful coexistence between classical space–time and quantum physics with scenarios that reopen the relationships between locality and nonlocality in the foundational structure of physics. Curated by two international experts Ignazio Licata and Fabrizio Tamburini, this volume hosts a selection of particularly significant essays for the new territories, and is dedicated to the 60th anniversary of Prof. Ignazio Licata
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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