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A computational ecosystem to support eHealth Knowledge Discovery technologies in Spanish
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Using the Twitter social network as a predictor in the political decision
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Verificación de autoría, clasificación por vecindad ; Authorship Verification, Neighborhood-based Classification
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A novel concept-level approach for ultra-concise opinion summarization
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Natural Language Processing and Information Systems : 16th International Conference on Applications of Natural Language to Information Systems, NLDB 2011, Alicante, Spain, June 28-30, 2011, Proceedings
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UB Frankfurt Linguistik
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Natural language processing and information systems : proceedings ; 16th International Conference on Applications of Natural Language to Information Systems, NLDB 2011, Alicante, Spain, June 28 - 30, 2011
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UB Frankfurt Linguistik
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Web 2.0, language resources and standards to automatically build a multilingual named entity lexicon
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In: Toral, Antonio orcid:0000-0003-2357-2960 , Ferrández, Sergio, Monachini, Monica and Muñoz, Rafael (2011) Web 2.0, language resources and standards to automatically build a multilingual named entity lexicon. Language Resources and Evaluation . ISSN 1574-020X (2011)
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Enhancing QA systems with complex temporal question processing capabilities
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Automatically converting and enriching a computational lexicon Ontology for NLP semantic tasks
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Applying Wikipedia’s multilingual knowledge to cross–lingual question answering
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Técnicas léxico-sintácticas para el reconocimiento de implicación textual
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A perspective-based approach for solving textual entailment recognition
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DLSITE-2: semantic similarity based on syntactic dependency trees applied to textual entailment
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Evaluating knowledge-based approaches to the multilingual extension of a temporal expression normalizer
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Multilingual extension of a temporal expression normalizer using annotated corpora
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Un sistema basado en conocimiento para el reconocimiento de implicación textual
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Abstract:
Este artículo presenta un sistema para el reconocimiento del fenómeno de implicación textual basado en conocimiento. El sistema propuesto está compuesto por dos componentes: el primero de ellos deriva las formas lógicas asociadas a un par de fragmentos de texto (denominados texto e hipótesis), y una vez obtenidas, el segundo componente aplica varios enfoques con el objetivo de obtener un factor de similitud semántica entre ellas y determinar si se produce implicación textual entre los textos. Todos los enfoques están basados en la base de datos léxica WordNet y las relaciones entre conceptos que esta establece. El sistema ha sido evaluado con los corpus y la metodología de evaluación de la competición PASCAL Second Recognising Textual Entailment consiguiendo un 60% de precisión media. ; This paper covers the recognition of textual entailment by means of an approach based on knowledge. Our approach consists of two stages. The first stage infers the logic forms from two fragments of text. These logic forms are obtained by analysing the dependency relations between words. And the second stage carries out several methods in order to achieve a score that determines the semantic similarity between the derived logic forms. Depending on this score the system establishes the existence of an entailment relation. All the methods use the WordNet lexical database as a knowledge source and obtain a semantic similarity score by means of WordNet relations. Our approach has been evaluated within the PASCAL Second RTE Challenge and achieved 60% average precision. ; Esta investigación ha sido parcialmente financiada bajo los proyectos CICyT número TIC2003-07158-C04-01
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Keyword:
Formas lógicas; Implicación textual; Logic forms; Semantic similarity; Similitud semántica; Textual entailment; WordNet
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URL: http://hdl.handle.net/10045/3343
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Natural Language Processing and Information Systems : 10th International Conference on Applications of Natural Language to Information Systems, NLDB 2005, Alicante, Spain, June 15-17, Proceedings
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UB Frankfurt Linguistik
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