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        <title>Topic-Aware Response Generation in Task-Oriented Dialogue with Unstructured Knowledge Access</title>
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    <name type="personal">
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    <abstract>To alleviate the problem of structured databases’ limited coverage, recent task-oriented dialogue systems incorporate external unstructured knowledge to guide the generation of system responses. However, these usually use word or sentence level similarities to detect the relevant knowledge context, which only partially capture the topical level relevance. In this paper, we examine how to better integrate topical information in knowledge grounded task-oriented dialogue and propose “Topic-Aware Response Generation” (TARG), an end-to-end response generation model. TARG incorporates multiple topic-aware attention mechanisms to derive the importance weighting scheme over dialogue utterances and external knowledge sources towards a better understanding of the dialogue history. Experimental results indicate that TARG achieves state-of-the-art performance in knowledge selection and response generation, outperforming previous state-of-the-art by 3.2, 3.6, and 4.2 points in EM, F1 and BLEU-4 respectively on Doc2Dial, and performing comparably with previous work on DSTC9; both being knowledge-grounded task-oriented dialogue datasets.</abstract>
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%0 Conference Proceedings
%T Topic-Aware Response Generation in Task-Oriented Dialogue with Unstructured Knowledge Access
%A Feng, Yue
%A Lampouras, Gerasimos
%A Iacobacci, Ignacio
%Y Goldberg, Yoav
%Y Kozareva, Zornitsa
%Y Zhang, Yue
%S Findings of the Association for Computational Linguistics: EMNLP 2022
%D 2022
%8 December
%I Association for Computational Linguistics
%C Abu Dhabi, United Arab Emirates
%F feng-etal-2022-topic
%X To alleviate the problem of structured databases’ limited coverage, recent task-oriented dialogue systems incorporate external unstructured knowledge to guide the generation of system responses. However, these usually use word or sentence level similarities to detect the relevant knowledge context, which only partially capture the topical level relevance. In this paper, we examine how to better integrate topical information in knowledge grounded task-oriented dialogue and propose “Topic-Aware Response Generation” (TARG), an end-to-end response generation model. TARG incorporates multiple topic-aware attention mechanisms to derive the importance weighting scheme over dialogue utterances and external knowledge sources towards a better understanding of the dialogue history. Experimental results indicate that TARG achieves state-of-the-art performance in knowledge selection and response generation, outperforming previous state-of-the-art by 3.2, 3.6, and 4.2 points in EM, F1 and BLEU-4 respectively on Doc2Dial, and performing comparably with previous work on DSTC9; both being knowledge-grounded task-oriented dialogue datasets.
%R 10.18653/v1/2022.findings-emnlp.533
%U https://aclanthology.org/2022.findings-emnlp.533/
%U https://doi.org/10.18653/v1/2022.findings-emnlp.533
%P 7199-7211

Markdown (Informal)

[Topic-Aware Response Generation in Task-Oriented Dialogue with Unstructured Knowledge Access](https://aclanthology.org/2022.findings-emnlp.533/) (Feng et al., Findings 2022)

• Topic-Aware Response Generation in Task-Oriented Dialogue with Unstructured Knowledge Access (Feng et al., Findings 2022)

ACL

• Yue Feng, Gerasimos Lampouras, and Ignacio Iacobacci. 2022. Topic-Aware Response Generation in Task-Oriented Dialogue with Unstructured Knowledge Access. In Findings of the Association for Computational Linguistics: EMNLP 2022, pages 7199–7211, Abu Dhabi, United Arab Emirates. Association for Computational Linguistics.