Zhengyu Zhao


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What Did You Refer to? Evaluating Co-References in Dialogue
Wei-Nan Zhang | Yue Zhang | Hanlin Tang | Zhengyu Zhao | Caihai Zhu | Ting Liu
Findings of the Association for Computational Linguistics: ACL-IJCNLP 2021


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Profile Consistency Identification for Open-domain Dialogue Agents
Haoyu Song | Yan Wang | Wei-Nan Zhang | Zhengyu Zhao | Ting Liu | Xiaojiang Liu
Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing (EMNLP)

Maintaining a consistent attribute profile is crucial for dialogue agents to naturally converse with humans. Existing studies on improving attribute consistency mainly explored how to incorporate attribute information in the responses, but few efforts have been made to identify the consistency relations between response and attribute profile. To facilitate the study of profile consistency identification, we create a large-scale human-annotated dataset with over 110K single-turn conversations and their key-value attribute profiles. Explicit relation between response and profile is manually labeled. We also propose a key-value structure information enriched BERT model to identify the profile consistency, and it gained improvements over strong baselines. Further evaluations on downstream tasks demonstrate that the profile consistency identification model is conducive for improving dialogue consistency.