Title |
A Derivational Rephrasing Experiment for Question Answering |
Authors |
Bernard Jacquemin |
Abstract |
In Knowledge Management, variations in information expressions have proven areal challenge. In particular, classical semantic relations (e.g. synonymy) donot connect words with different parts-of-speech. The method proposed tries toaddress this issue. It consists in building a derivational resource from amorphological derivation tool together with derivational guidelines from adictionary in order to store only correct derivatives. This resource, combinedwith a syntactic parser, a semantic disambiguator and some derivationalpatterns, helps to reformulate an original sentence while keeping the initialmeaning in a convincing manner This approach has been evaluated in threedifferent ways: the precision of the derivatives produced from a lemma; itsability to provide well-formed reformulations from an original sentence,preserving the initial meaning; its impact on the results coping with a realissue, \textit{ie} a question answering task . The evaluation of this approachthrough a question answering system shows the pros and cons of this system,while foreshadowing some interesting future developments. |
Language |
Word Sense Disambiguation |
Topics |
Lexicon, lexical database, Question Answering, Word Sense Disambiguation |
Full paper  |
A Derivational Rephrasing Experiment for Question Answering |
Bibtex |
@InProceedings{JACQUEMIN10.104,
author = {Bernard Jacquemin}, title = {A Derivational Rephrasing Experiment for Question Answering}, booktitle = {Proceedings of the Seventh conference on International Language Resources and Evaluation (LREC'10)}, year = {2010}, month = {may}, date = {19-21}, address = {Valletta, Malta}, editor = {Nicoletta Calzolari (Conference Chair), Khalid Choukri, Bente Maegaard, Joseph Mariani, Jan Odjik, Stelios Piperidis, Mike Rosner, Daniel Tapias}, publisher = {European Language Resources Association (ELRA)}, isbn = {2-9517408-6-7}, language = {english} } |