1,721,065 research outputs found
An abstract interpretation framework for semantics and diagnosis of Lazy functional-logic languages
No full textIn this thesis we present a condensed, goal-independent, bottom-up fixpoint
that is fully abstract w.r.t. results computed for Curry/Haskell expressions. These features make our semantics particularly suitable for developing efficacious semantics-based program manipulation tools. To support this claim, we provide some applications: a static analyzer for groundness dependencies, an abstract debugging/diagnosis method, and an automatic method for synthesizing property-oriented specification
Dall'Alma Mater al mondo. Dante all'Università di Bologna
No full text"Quello fra Dante e l’Università di Bologna è un rapporto stretto, profondo e antico, che ha le sue radici nella stessa biografia dantesca e poi nella primissima ricezione delle sue opere. Le tracce della presenza del poeta in città sono numerose e risalgono già alla prima attestazione di una sua opera, il sonetto della Garisenda, trascritto nel 1287 su una pagina dei Memoriali Bolognesi dal notaio Enrichetto delle Querce. Del resto, la profonda conoscenza della città è testimoniata nei primi anni dell’esilio dal De vulgari eloquentia, che dispiega riferimenti a una cultura filosofico-linguistica di taglio universitario e mostra soprattutto un’attenzione acutissima verso i fenomeni linguistici bolognesi per non dire poi dello spazio che hanno in quest’opera i poeti della città felsinea, e non solo il sempre esaltato Guinizzelli. Nella Commedia la presenza di Bologna è più complessa e controversa: fra le tante città criticate dal poeta per i loro vizi, Bologna non fa certo eccezione ed è anzi colpita con particolare violenza in occasione degli incontri con dannati bolognesi, come Venedico Caccianemico, dannato fra i ruffiani (Inf. XVIII, 40-63), e i frati gaudenti Loderingo e Catalano, nella bolgia degli ipocriti (Inf. XXIII, 103-144). Ma anche un illustre professore della Studium viene citato: Francesco d’Accursio (Inf. XV, 110), professore di diritto all’Università di Bologna e figlio del celebre Accursio, viene indicato fra i sodomiti, violenti contro natura. La sua condanna non sembra però coinvolgere la città, ma prova piuttosto il fatto che tra i sodomiti si trovano «litterati grandi e di gran fama» (Inf. XV, 107). Il rapporto con Bologna continua sino alla fine. Non è quindi un caso che anche la prima diffusione della Commedia, all’indomani della morte del poeta, abbia come epicentro Bologna e che la cultura bolognese sia in prima fila pure nel lavoro di esegesi. Forte di un rapporto tanto importante e antico con Dante, l’Università di Bologna ha costruito negli ultimi centocinquant’anni un’altissima tradizione di studi danteschi che ha offerto un contributo molteplice e decisivo allo sviluppo della moderna filologia e critica dantesca ma anche alla ricezione artistica, scolastica e popolare di Dante e delle sue opere." (Dall'introduzione al catalogo a cura del prof. Giuseppe Ledda) La mostra ha lo scopo di valorizzare il contributo dei professori bolognesi allo studio di Dante, che si caratterizza per la natura multidisciplinare. L'inaugurazione è avvenuta sabato 23 ottobre, alle ore 17, nell'Aula Magna della Biblioteca Universitaria di Bologna, via Zamboni 35, Bologna
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
Abstract Diagnosis of First Order Functional Logic Programs
No full textWe present a generic scheme for the abstract debugging of functional logic programs. We associate to programs a semantics based on a (continuous) immediate consequence operator, T[P], which models correctly the powerful features of modern functional logic languages (non-deterministic, non-strict functions defined by non-confluent programs and call-time choice behaviour). Then, we develop an effective debugging methodology which is based on abstract interpretation: by approximating the intended specification of the semantics of P we derive a finitely terminating bottom-up diagnosis method, which can be used statically. Our debugging framework does not require the user to provide error symptoms in advance and is applicable with partial specifications and even partial programs
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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