Advances in Natural Language Processing

EsTAL - Espana ˜ for Natural Language Processing - continued on from the three previous conferences: FracTAL, held at the Universit´ e de Franch-Comt´ e, Besan¸ con (France) in December 1997, VexTAL, held at Venice International University, Ca ´ Foscari (Italy), in November 1999, and PorTAL, held at the U- versidade do Algarve, Faro (Portugal), in June 2002. The main goals of these conferences have been: (i) to bring together the international NLP community; (ii) to strengthen the position of local NLP research in the international NLP community; and (iii) to provide a forum for discussion of new research and - plications. EsTAL contributed to achieving these goals and increasing the already high international standing of these conferences, largely due to its Program Comm- tee,composedofrenownedresearchersinthe?eldofnaturallanguageprocessing and its applications. This clearly contributed to the signi?cant number of papers submitted (72) by researchers from (18) di?erent countries. The scope of the conference was structured around the following main topics: (i)computational linguistics research (spoken and written language analysis and generation; pragmatics, discourse, semantics, syntax and morphology; lexical - sources; word sense disambiguation; linguistic, mathematical, and psychological models of language; knowledge acquisition and representation; corpus-based and statistical language modelling; machine translation and translation aids; com- tationallexicography),and(ii)monolingualandmultilingualintelligentlanguage processing and applications (information retrieval, extraction and question - swering; automatic summarization; document categorization; natural language interfaces; dialogue systems and evaluation of systems).