Abstract
Dialogue systems have attracted more and more attention. Different from traditional open-domain conversational systems, document grounded dialogue generation aims to ground the semantics in a specified document and leverage contextual cues from dialogue history to generate on-topic and coherent responses, which is a renewed and challenging task. Some prior studies via neural sequence-to-sequence models have been conducted. However, they often treat the dialogue history and the given document independently while fail to model contextual dependence between them. To understand the dialogue better and respond more appropriately and informatively, we present a novel knowledge-aware self-attention approach for document grounded dialogue, called DialogTransformer. DialogTransformer can fully leverage the semantic knowledge from both the dialogue history and the given document to joint improve the content quality of generated responses. We conduct extensive experiments on the CMU-DoG benchmark dataset and the experimental results show that our approach outperforms several state-of-the-art models, which can generate more appropriate and informative responses.
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Acknowledgement
This work was supported by the National Natural Science Foundation of China (No. 61402191), the Fundamental Research Funds for the Central Universities (No. CCNU18TS044), and the Thirteen Five-year Research Planning Project of National Language Committee (No. WT135-11).
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Tang, X., Hu, P. (2019). Knowledge-Aware Self-Attention Networks for Document Grounded Dialogue Generation. In: Douligeris, C., Karagiannis, D., Apostolou, D. (eds) Knowledge Science, Engineering and Management. KSEM 2019. Lecture Notes in Computer Science(), vol 11776. Springer, Cham. https://doi.org/10.1007/978-3-030-29563-9_35
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DOI: https://doi.org/10.1007/978-3-030-29563-9_35
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