A Token-pair Framework for Information Extraction from Dialog Transcripts in SereTOD Challenge

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Abstract

This paper describes our solution for SereTOD Challenge Track 1: Information extraction from dialog transcripts. We propose a token-pair framework to simultaneously identify entity and value mentions and link them into corresponding triples. As entity mentions are usually coreferent, we adopt a baseline model for coreference resolution. We exploit both annotated transcripts and unsupervised dialogs for training. With model ensemble and post-processing strategies, our system significantly outperforms the baseline solution and ranks first in triple f1 and third in entity f1.

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APA

Wang, C., Kong, X., Huang, M., Li, F., Xing, J., Zhang, W., & Zou, W. (2022). A Token-pair Framework for Information Extraction from Dialog Transcripts in SereTOD Challenge. In SereTOD 2022 - Towards Semi-Supervised and Reinforced Task-Oriented Dialog Systems, Proceedings of the Workshop (pp. 19–23). Association for Computational Linguistics (ACL). https://doi.org/10.18653/v1/2022.seretod-1.3

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