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Inf. Syst."],"published-print":{"date-parts":[[2024,7,31]]},"abstract":"<jats:p>\n            Document-level event extraction is a long-standing challenging information retrieval problem involving a sequence of sub-tasks: entity extraction, event type judgment, and event type-specific multi-event extraction. However, addressing the problem as multiple learning tasks leads to increased model complexity. Also, existing methods insufficiently utilize the correlation of entities crossing different events, resulting in limited event extraction performance. This article introduces a novel framework for document-level event extraction, incorporating a new data structure called token-event-role and a multi-channel argument role prediction module. The proposed data structure enables our model to uncover the primary role of tokens in multiple events, facilitating a more comprehensive understanding of event relationships. By leveraging the multi-channel prediction module, we transform entity and multi-event extraction into a single task of predicting token\u2013event pairs, thereby reducing the overall parameter size and enhancing model efficiency. The results demonstrate that our approach outperforms the state-of-the-art method by 9.5 percentage points in terms of the\n            <jats:italic>F<\/jats:italic>\n            1 score, highlighting its superior performance in event extraction. Furthermore, an ablation study confirms the significant value of the proposed data structure in improving event extraction tasks, further validating its importance in enhancing the overall performance of the framework.\n          <\/jats:p>","DOI":"10.1145\/3643885","type":"journal-article","created":{"date-parts":[[2024,2,7]],"date-time":"2024-02-07T11:58:57Z","timestamp":1707307137000},"page":"1-27","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":5,"title":["Token-Event-Role Structure-Based Multi-Channel Document-Level Event Extraction"],"prefix":"10.1145","volume":"42","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8835-5134","authenticated-orcid":false,"given":"Qizhi","family":"Wan","sequence":"first","affiliation":[{"name":"School of Information Management, Jiangxi University of Finance and Economics and Jiangxi Key Laboratory of Data and Knowledge Engineering, Nanchang, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6222-1015","authenticated-orcid":false,"given":"Changxuan","family":"Wan","sequence":"additional","affiliation":[{"name":"School of Information Management, Jiangxi University of Finance and Economics and Jiangxi Key Laboratory of Data and Knowledge Engineering, Nanchang, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6494-1174","authenticated-orcid":false,"given":"Keli","family":"Xiao","sequence":"additional","affiliation":[{"name":"College of Business, Stony Brook University, Stony Brook, USA"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6016-6465","authenticated-orcid":false,"given":"Hui","family":"Xiong","sequence":"additional","affiliation":[{"name":"Thrust of Artificial Intelligence, Hong Kong University of Science and Technology (Guangzhou), Guangzhou, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1093-2744","authenticated-orcid":false,"given":"Dexi","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Information Management, Jiangxi University of Finance and Economics and Jiangxi Key Laboratory of Data and Knowledge Engineering, Nanchang, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0230-8004","authenticated-orcid":false,"given":"Xiping","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Information Management, Jiangxi University of Finance and Economics and Jiangxi Key Laboratory of Data and Knowledge Engineering, Nanchang, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9940-1351","authenticated-orcid":false,"given":"Rong","family":"Hu","sequence":"additional","affiliation":[{"name":"School of Information Management, Jiangxi University of Finance and Economics and Jiangxi Key Laboratory of Data and Knowledge Engineering, Nanchang, China"}]}],"member":"320","published-online":{"date-parts":[[2024,3,22]]},"reference":[{"key":"e_1_3_3_2_2","first-page":"12462","volume-title":"Proceedings of the 35th AAAI Conference on Artificial Intelligence (AAAI)","author":"Ahmad Wasi Uddin","year":"2021","unstructured":"Wasi Uddin Ahmad, Nanyun Peng, and Kai-Wei Chang. 2021. 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