Dialogue-Act Prediction of Future Responses Based on Conversation History

Koji Tanaka, Junya Takayama, Yuki Arase


Abstract
Sequence-to-sequence models are a common approach to develop a chatbot. They can train a conversational model in an end-to-end manner. One significant drawback of such a neural network based approach is that the response generation process is a black-box, and how a specific response is generated is unclear. To tackle this problem, an interpretable response generation mechanism is desired. As a step toward this direction, we focus on dialogue-acts (DAs) that may provide insight to understand the response generation process. In particular, we propose a method to predict a DA of the next response based on the history of previous utterances and their DAs. Experiments using a Switch Board Dialogue Act corpus show that compared to the baseline considering only a single utterance, our model achieves 10.8% higher F1-score and 3.0% higher accuracy on DA prediction.
Anthology ID:
P19-2027
Volume:
Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics: Student Research Workshop
Month:
July
Year:
2019
Address:
Florence, Italy
Editors:
Fernando Alva-Manchego, Eunsol Choi, Daniel Khashabi
Venue:
ACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
197–202
Language:
URL:
https://aclanthology.org/P19-2027
DOI:
10.18653/v1/P19-2027
Bibkey:
Cite (ACL):
Koji Tanaka, Junya Takayama, and Yuki Arase. 2019. Dialogue-Act Prediction of Future Responses Based on Conversation History. In Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics: Student Research Workshop, pages 197–202, Florence, Italy. Association for Computational Linguistics.
Cite (Informal):
Dialogue-Act Prediction of Future Responses Based on Conversation History (Tanaka et al., ACL 2019)
Copy Citation:
PDF:
https://aclanthology.org/P19-2027.pdf