Titre :

A Derivational Rephrasing Experiment for Question Answering

Auteur(s) :

Jacquemin, Bernard [Auteur]
Groupe d'Études et de Recherche Interdisciplinaire en Information et COmmunication - ULR 4073 [GERIICO ]
Centre de Recherche sur les Médiations [Crem]

Éditeur(s) ou directeur(s) scientifique(s) :

Calzolari, Nicoletta
Choukri, Khalid
Maegaard, Bente
Mariani, Joseph
Odijk, Jan
Piperidis, Stelios
Rosner, Mike
Tapias, Daniel

Titre de la manifestation scientifique :

Proceedings of the Seventh conference on International Language Resources and Evaluation (LREC'10)

Ville :

Valetta

Pays :

Malte

Date de début de la manifestation scientifique :

2010-05-17

Éditeur :

ELRA

Date de publication :

2010

Mot(s)-clé(s) :

Question Answering
Word Sense Disambiguation
derivatives
Lexicon
lexical database

Discipline(s) HAL :

Informatique [cs]/Recherche d'information [cs.IR]
Informatique [cs]/Traitement du texte et du document
Sciences de l'Homme et Société/Linguistique
Sciences de l'Homme et Société/Sciences de l'information et de la communication

Résumé en anglais : [en]

In Knowledge Management, variations in information expressions have proven a real challenge. In particular, classical semantic relations (e.g. synonymy) do not connect words with different parts-of-speech. The method ...
Lire la suite >In Knowledge Management, variations in information expressions have proven a real challenge. In particular, classical semantic relations (e.g. synonymy) do not connect words with different parts-of-speech. The method proposed tries to address this issue. It consists in building a derivational resource from a morphological derivation tool together with derivational guidelines from a dictionary in order to store only correct derivatives. This resource, combined with a syntactic parser, a semantic disambiguator and some derivational patterns, helps to reformulate an original sentence while keeping the initial meaning in a convincing manner This approach has been evaluated in three different ways: the precision of the derivatives produced from a lemma; its ability to provide well-formed reformulations from an original sentence, preserving the initial meaning; its impact on the results coping with a real issue, ie a question answering task . The evaluation of this approach through a question answering system shows the pros and cons of this system, while foreshadowing some interesting future developments.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Collections :

• Groupement d'Études et de Recherche Interdisciplinaire en Information et Communication (GERiiCO) - ULR 4073

Source :

Harvested from HAL