Paraphrase Scope and Typology. A Data-Driven Approach from Computational Linguistics / Abast i tipologia de la paràfrasi. Una aproximació empíriica des de la lingüíística computacional

The contents of the first article in this PhD thesis (from page 30), namely "Is this a paraphrase? What kind? Paraphrase boundaries and typology" by Marta Vila, M. Antònia Martí, and Horacio Rodríguez, were finally published at the Open Journal of Modern Linguistics journal. Vila, Marta, M. Antònia Martí, and Horacio Rodríguez. 2014. Is this a paraphrase? What kind? Paraphrase boundaries and typology. Open Journal of Modern Linguistics, 4:205-218. http://dx.doi.org/10.4236/ojml.2014.41016 ///Els continguts del primer article d'aquesta tesi doctoral (des de la pàgina 30), titulat "Is this a paraphrase? What kind? Paraphrase boundaries and typology" de Marta Vila, M. Antònia Martí i Horacio Rodríguez, van ser finalment publicats a la revista Open Journal of Modern Linguistics. Vila, Marta, M. Antònia Martí i Horacio Rodríguez. 2014. Is this a paraphrase? What kind? Paraphrase boundaries and typology. Open Journal of Modern Linguistics, 4:205-218. http://dx.doi.org/10.4236/ojml.2014.41016 ///Los contenidos del primer artículo de esta tesis doctoral (desde la página 30), titulado "Is this a paraphrase? What kind? Paraphrase boundaries and typology" de Marta Vila, M. Antònia Martí y Horacio Rodríguez, fueron finalmente publicados en la revista Open Journal of Modern Linguistics. Vila, Marta, M. Antònia Martí y Horacio Rodríguez. 2014. Is this a paraphrase? What kind? Paraphrase boundaries and typology. Open Journal of Modern Linguistics, 4:205-218. http://dx.doi.org/10.4236/ojml.2014.41016[cat] S'entén per paràfrasi la igualtat aproximada de significat entre fragments de text que difereixen en la forma. La paràfrasi és omnipresent en les llengües naturals, on es troba expressada de múltiples maneres. D'una banda, la ubiqüitat de la paràfrasi l'ha convertit en el centre d’interès de moltes tasques específiques dins de la lingüística computacional; de l'altra, la seva complexitat ha fet de la paràfrasi un problema que encara no té una solució definitiva[eng] Paraphrasing is generally understood as approximate sameness of meaning between snippets of text with a different wording. Paraphrases are omnipresent in natural languages demonstrating all the aspects of its multifaceted nature. The pervasiveness of paraphrasing has made it a focus of several tasks in computational linguistics; its complexity has in turn resulted in paraphrase remaining a still unresolved challenge. Two basic issues, directly linked to the complex nature of paraphrasing, make its computational treatment particularly difficult, namely the absence of a precise and commonly accepted definition and the lack of reference corpora for paraphrasing. Based on the assumption that linguistic knowledge should underlie computational-linguistics research, this thesis aims to go a step forward in these two questions: paraphrase characterization and paraphrase-corpus building and annotation