Abstract
In some cases, to make a proper translation of an utterance in a dialogue, different pieces of contextual information are needed. Interpreting such utterances often requires dialogue analysis including speech acts and discourse analysis. In this paper, a statistical dialogue analysis model for Korean–English dialogue machine translation based on speech acts is proposed. The model uses syntactic patterns and n-grams of speech acts. The syntactic patterns include surface syntactic features which are related to the language-dependent expressions of speech acts. Speech-act n-grams are used to approximate the context of utterances. The key feature is the use of speech-act n-grams based on hierarchical recency. Experimental results with trigrams show that the proposed model achieves an accuracy of 66.87% for the top candidate and 82.35% for the top three candidates. It indicates that the proposed model based on hierarchical recency outperforms the model based on linear recency.
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Lee, JW., Seo, J. & Kim, G.C. A Statistical Dialogue Analysis Model Based on Speech Acts for Dialogue Machine Translation. Machine Translation 13, 269–286 (1998). https://doi.org/10.1023/A:1008007325490
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DOI: https://doi.org/10.1023/A:1008007325490