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XLTime: A Cross-Lingual Knowledge Transfer Framework for Temporal Expression Extraction

  • Yuwei Cao
  • , William Groves
  • , Tanay Kumar Saha
  • , Joel R. Tetreault
  • , Alex Jaimes
  • , Hao Peng
  • , Philip S. Yu
  • University of Illinois at Chicago
  • Dataminr Inc.
  • Walmart Global Tech

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Temporal Expression Extraction (TEE) is essential for understanding time in natural language. It has applications in Natural Language Processing (NLP) tasks such as question answering, information retrieval, and causal inference. To date, work in this area has mostly focused on English as there is a scarcity of labeled data for other languages. We propose XLTime, a novel framework for multilingual TEE. XLTime works on top of pre-trained language models and leverages multi-task learning to prompt cross-language knowledge transfer both from English and within the non-English languages. XLTime alleviates problems caused by a shortage of data in the target language. We apply XLTime with different language models and show that it outperforms the previous automatic SOTA methods on French, Spanish, Portuguese, and Basque, by large margins. XLTime also closes the gap considerably on the handcrafted HeidelTime method.

源语言英语
主期刊名Findings of the Association for Computational Linguistics
主期刊副标题NAACL 2022 - Findings
出版商Association for Computational Linguistics (ACL)
1931-1942
页数12
ISBN(电子版)9781955917766
DOI
出版状态已出版 - 2022
活动2022 Findings of the Association for Computational Linguistics: NAACL 2022 - Seattle, 美国
期限: 10 7月 202215 7月 2022

出版系列

姓名Findings of the Association for Computational Linguistics: NAACL 2022 - Findings

会议

会议2022 Findings of the Association for Computational Linguistics: NAACL 2022
国家/地区美国
Seattle
时期10/07/2215/07/22

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