1,759 research outputs found
L'esedra della Crypta Balbi tra tardo antico e alto medioevo
No full textAnalisi della complessa stratificazione formatasi nell'emiciclo della Crypta Balbi dal momento dell'abbandono (V secolo) a quello della distruzione (X secolo)
Textual Data Analysis tools for Word Sense Disambiguation
No full textThe ambiguity of words is a crucial question when dealing with an automatic analysis of documentary data
bases. In Text Mining, Word Sense Disambiguation
is the task of giving a particular sense to a term with
different meanings both in the case of coincidental and polysemous homographs. In literature, the proposed
solutions are mainly based on two elements: some knowledge related to the term and the context in which the term appears. Limiting the related knowledge to grammatical tagging, and to an
analysis of collocations, here we focus our attention on identifying the context, in a data driven approach. Our framework is based on Textual Data Analysis and we assume that language and knowledge can be modeled as networks of words and the relations between them. The aim of this paper is
to propose an extension of the strategy for building
lexical sources in Balbi et al. (2012), in order to deal with ambiguous words. The methodological basis is given by the
joint use of lexical Correspondence Analysis and Network Analysis. Our idea is investigating the neighborhood of
ambiguous terms, with respect to the different latent semantic components, emerging thanks to Correspondence Analysis of a training set of documents, in order to build some rules, useful in
solving WSD problems in the entire corpus
Comitato scientifico per la mostra e catalogo "Le monete dello stato Estense. Due secoli di coniazione nella zecca di Modena"
No full textMembro del comitato scientifico per la mostra e catalogo "Le monete dello stato Estense. Due secoli di coniazione nella zecca di Modena", insieme con il prof. Marco Cattini, ordinario di storia economica dell'Università Bocconi di Milano e la dott. Silvana Balbi de Caro, direttrice dal museo Nazionale Romano. Il volume è stato pubblicato nei nn. 30-31 (1998) del Bollettino di Numismatica del Ministero per i Beni Culturali e Ambientali, nell'ambito delle celebrazioni del IV centenario di Modena Capital
Choosing a proper metrics for textual analysis
No full textThe definition of good strategies for Text Retrieval has become in recent years more and more important. In literature, statistical approaches are frequently mentioned (perhaps, more than used), in an “exploratory data analysis state of mind” (e.g. Greiff, 1998). One crucial point consists in understanding andmeasuring the specificity of each term in order to obtain a mean for measuring the relevance of a document with respect to a query. Many different solutions have been proposed. In Vector Space Models (Salton, 1983) the weighting step considers the term and collection frequency and the length normalization factor. In the canonical for m of Latent Semantic Indexing (Deerwester et al., 1990) weights are given by raw term frequencies. In Latent Semantic Correspondence Indexing (Balbi & Di Meglio, 2004) a weight related to chi-square metrics has been suggested. Aim of this paper is to propose, having in mind the so-called “general analysis in any distances and any criteria”, a distance and a criterion related to terms relevance and specificity, in order to reconsider the weighting systemin a Lexical Correspondence Analysis scheme
La circolazione delle merci: il deposito della fine del VII secolo nell'esedra della Crypta Balbi
No full textPresentazione del deposito della fine del VII secolo rinvenuto nell'esedra della Crypta Balbi e dei materiali (ceramica e vetro) restituiti dallo scavo ed esposti nel Museo
Il text mining per l’individuazione dell’offerta universitaria di competenze nel terzo settore
No full textIl lavoro si pone l'obiettivo di individuare quali sono le competenze offerte dai programmi di studio che hanno come fine la preparazione alle professioni proprie del terzo settore, attraverso uno studio statistico del linguaggio utilizzato per descrivere gli obiettivi dei corsi di laurea, sul sito del Ministero dell'Università. Il problema viene affrontato in un'ottica di text mining, vista la mole della base documentaria da analizzare e in particolare a tecniche di riduzione dimensionale che consentano l'introduzione di informazione esterna, al fine di introdurre le informazioni relative alle differente classi di laurea coinvolte e a tradizionali classificazioni delle competenze. I risultati sollevano notevoli dubbi circa la capacità delle università a porsi all'interno di un meccanismo concorrenzial
Violenza sessuale in famiglia e diritto vivente
No full textL'autore affronta il delicato tema della violenza sessuale in famiglia, soprattutto alla luce di un panorama normativo decisamente inadeguato e delle forti incertezze giurisprudenziali che lo connotano.The author addresses the delicate issue of sexual violence in the family, especially in the light of a an inadequate regulatory landscape and the strong jurisprudential uncertainties that connote it
L'enquête archéologique dans la zone de la Crypta Balbi
No full textManacorda Daniele, Bosc A.-M. L'enquête archéologique dans la zone de la Crypta Balbi. In: Les Nouvelles de l'archéologie, n°13, automne 1983. L'archéologie à Rome. pp. 11-16
Rotated canonical correlation analysis for multilingual corpora
No full textThis paper aims at proposing the joint use of Canonical Correlation Analysis and Procrustes Rotations (RCA), when we deal with a text and its translation into another language. The basic idea is representing words in the two different natural languages on a common reference space. The main characteristic of this space is to be lan-guage independent, although Procrustes Rotation is performed transforming the lexical table derived from trans-lation by minimizing its distance from the lexical table belonging to the original corpus, while the subsequent Canonical Correlation Analysis treats symmetrically the two word sets. The most interesting RCA feature is building a unique reference space for representing the correlation structure in the data, inducing the two systems of canonical factors to lie on the same space. These graphical representations enables us to read distances be-tween corresponding points in terms of different way of translating the same word in relation with the general context defined by the canonical variates. Trying to understand the distances between matched points could rep-resent an useful tool for enriching lexical resources in a translation procedure. In this paper we propose the com-parison of the most frequent content bearing words in the two languages, analyzing one year (2003) of Le Monde Diplomatique and its Italian edition
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