1,721,373 research outputs found
Bodo Ebhardt, il Deutsche Baumeister e i castelli italiani
No full textIn questo saggio si intende fornire un quadro generale sulla figura dell'architetto Bodo Ebhardt (1865-1945), che può essere considerato il più importante studioso dei castelli europei per la notevolissima quantità di studi pubblicati sul tema, la sua non meno intensa attività professionale come architetto e restauratore ed il suo impegno all’interno dell’Associazione per la conservazione dei castelli tedeschi. Ne verrà delineata sinteticamente la biografia, le motivazioni culturali e politiche del suo interesse per i castelli, il suo particolare approccio al restauro, l’organizzazione dei viaggi di studio in Italia per la redazione della monumentale opera Die Burgens Italiens
I castelli di Yale - Quaderni di Filosofia
No full textI castelli di Yale online - Quaderni di Filosofia Sujet : La rivista I castelli di Yale - Quaderni di filosofia, nata nel 1996 come espressione dell’impegno nella ricerca storico-filosofica di un gruppo di docenti dell’Università di Ferrara, cambia “pelle”: si trasforma in pubblicazione on-line per ottenere una più ampia diffusione e raggiungere un pubblico internazionale. Adeguarsi ai tempi e alle modalità dell’editoria elettronica non significa però cambiare gli stili e il codice geneti..
Combination of supervised and unsupervised learning for training the activation functions of neural networks
No full textStandard feedforward neural networks benefit from the nice theoretical properties of mixtures of sigmoid activation functions, but they may fail in several practical learning tasks. These tasks would be better faced by relying on a more appropriate, problem-specific basis of activation functions. The paper presents a connectionist model which exploits adaptive activation functions. Each hidden unit in the network is associated with a specific pair (f(·),p(·)), where f(·) is the activation function and p(·) is the likelihood of the unit being relevant to the computation of the network output over the current input. The function f(·) is optimized in a supervised manner, while p(·) is realized via a statistical parametric model learned through unsupervised (or, partially supervised) estimation. Since f(·) and p(·) influence each other's learning process, the overall machine is implicitly a co-trained coupled model and, in turn, a flexible, non-standard neural architecture. Feasibility of the approach is corroborated by empirical evidence yielded by computer simulations involving regression and classification tasks
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
I castelli nei territori diocesani di Populonia-Massa e Roselle-Grosseto (secc. X-XIV)
No full textSecondo un approccio geografico-quantitativo si censiscono i castelli attestati archeologicamente o documentariamente entro il territorio delle due diocesi, si tenta una ricostruzione delle vicende insediative altomedievali, evidenziando il ruolo di alcuni villaggi, e si affronta il tema del rapporto tra territori diocesani e distretti castellani
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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