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Jointly identifying temporal relations with Markov Logic

Yoshikawa, K; Asahara, M; Matsumoto, Y; Riedel, S; (2009) Jointly identifying temporal relations with Markov Logic. In: ACL-IJCNLP 2009 - Joint Conf. of the 47th Annual Meeting of the Association for Computational Linguistics and 4th Int. Joint Conf. on Natural Language Processing of the AFNLP, Proceedings of the Conf. (pp. 405 - 413).

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Abstract

Recent work on temporal relation identification has focused on three types of relations between events: temporal relations between an event and a time expression, between a pair of events and between an event and the document creation time. These types of relations have mostly been identified in isolation by event pairwise comparison. However, this approach neglects logical constraints between temporal relations of different types that we believe to be helpful. We therefore propose a Markov Logic model that jointly identifies relations of all three relation types simultaneously. By evaluating our model on the TempEval data we show that this approach leads to about 2% higher accuracy for all three types of relations -and to the best results for the task when compared to those of other machine learning based systems. © 2009 ACL and AFNLP.

Type:Proceedings paper
Title:Jointly identifying temporal relations with Markov Logic
UCL classification:UCL > School of BEAMS > Faculty of Engineering Science > Computer Science

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