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Discourse parsing for multi-party chat dialogues

Afantenos, Stergos and Kow, Eric and Asher, Nicholas and Perret, Jérémy Discourse parsing for multi-party chat dialogues. (2015) In: Conference on Empirical Methods on Natural Language Processing (EMNLP 2015), 17 September 2015 - 21 September 2015 (Lisbon, Portugal).

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Official URL: http://dx.doi.org/10.18653/v1/D15-1109

Abstract

In this paper we present the first ever, to the best of our knowledge, discourse parser for multi-party chat dialogues. Discourse in multi-party dialogues dramatically differs from monologues since threaded conversations are commonplace rendering prediction of the discourse structure compelling. Moreover, the fact that our data come from chats renders the use of syntactic and lexical information useless since people take great liberties in expressing themselves lexically and syntactically. We use the dependency parsing paradigm as has been done in the past (Muller et al., 2012; Li et al., 2014). We learn local probability distributions and then use MST for decoding. We achieve 0.680 F 1 on unlabelled structures and 0.516 F 1 on fully labeled structures which is better than many state of the art systems for monologues, despite the inherent difficulties that multi-party chat dialogues have.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to Association for Computational Linguistics (ACL) for ACL Anthology, Digital Archive of Research Papers in Computational Linguistics. This papers appears in Proceedings of the 2015 Conference on Empirical Methods in Natural Language Processing The definitive version is available at http://aclweb.org/anthology/D/D15/ The original PDF is available at: http://aclweb.org/anthology/D15-1109
HAL Id:hal-01535954
Audience (conference):International conference proceedings
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Institution:Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
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Deposited By: IRIT IRIT
Deposited On:01 Jun 2017 14:07

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