Feng, Yue;
Lipani, Aldo;
Ye, Fanghua;
Zhang, Qiang;
Yilmaz, Emine;
(2022)
Dynamic Schema Graph Fusion Network for Multi-Domain Dialogue State Tracking.
In:
Proceedings of the 60th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers).
(pp. pp. 115-126).
ACL Anthology: Dublin, Ireland.
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Abstract
Dialogue State Tracking (DST) aims to keep track of users’ intentions during the course of a conversation. In DST, modelling the relations among domains and slots is still an under-studied problem. Existing approaches that have considered such relations generally fall short in: (1) fusing prior slot-domain membership relations and dialogue-aware dynamic slot relations explicitly, and (2) generalizing to unseen domains. To address these issues, we propose a novel Dynamic Schema Graph Fusion Network (DSGFNet), which generates a dynamic schema graph to explicitly fuse the prior slot-domain membership relations and dialogue-aware dynamic slot relations. It also uses the schemata to facilitate knowledge transfer to new domains. DSGFNet consists of a dialogue utterance encoder, a schema graph encoder, a dialogue-aware schema graph evolving network, and a schema graph enhanced dialogue state decoder. Empirical results on benchmark datasets (i.e., SGD, MultiWOZ2.1, and MultiWOZ2.2), show that DSGFNet outperforms existing methods.
| Type: | Proceedings paper |
|---|---|
| Title: | Dynamic Schema Graph Fusion Network for Multi-Domain Dialogue State Tracking |
| Event: | ACL 2022: 60th Annual Meeting of the Association for Computational Linguistics |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.18653/v1/2022.acl-long.10 |
| Publisher version: | http://dx.doi.org/10.18653/v1/2022.acl-long.10 |
| Language: | English |
| Additional information: | ACL materials are Copyright © 1963–2022 ACL; other materials are copyrighted by their respective copyright holders. Materials prior to 2016 here are licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 International License. Permission is granted to make copies for the purposes of teaching and research. Materials published in or after 2016 are licensed on a Creative Commons Attribution 4.0 International License. |
| UCL classification: | UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10146908 |
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