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題名 Chinese Discourse Parsing: Model and Evaluation
作者 黃瀚萱
Huang, Hen-Hsen
Lin, Chuan-An
Hung, Shyh-Shiun
Chen, Hsin-Hsi
貢獻者 資科系
日期 2020-05
上傳時間 4-Jun-2021 14:38:13 (UTC+8)
摘要 Chinese discourse parsing, which aims to identify the hierarchical relationships of Chinese elementary discourse units, has not yet a consistent evaluation metric. Although Parseval is commonly used, variations of evaluation differ from three aspects: micro vs. macro F1 scores, binary vs. multiway ground truth, and left-heavy vs. right-heavy binarization. In this paper, we first propose a neural network model that unifies a pre-trained transformer and CKY-like algorithm, and then compare it with the previous models with different evaluation scenarios. The experimental results show that our model outperforms the previous systems. We conclude that (1) the pre-trained context embedding provides effective solutions to deal with implicit semantics in Chinese texts, and (2) using multiway ground truth is helpful since different binarization approaches lead to significant differences in performance.
關聯 Proceedings of the 12th Conference on Language Resources and Evaluation (LREC 2020), European Language Resources Association, pp.1019-1024
資料類型 conference
dc.contributor 資科系
dc.creator (作者) 黃瀚萱
dc.creator (作者) Huang, Hen-Hsen
dc.creator (作者) Lin, Chuan-An
dc.creator (作者) Hung, Shyh-Shiun
dc.creator (作者) Chen, Hsin-Hsi
dc.date (日期) 2020-05
dc.date.accessioned 4-Jun-2021 14:38:13 (UTC+8)-
dc.date.available 4-Jun-2021 14:38:13 (UTC+8)-
dc.date.issued (上傳時間) 4-Jun-2021 14:38:13 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/135519-
dc.description.abstract (摘要) Chinese discourse parsing, which aims to identify the hierarchical relationships of Chinese elementary discourse units, has not yet a consistent evaluation metric. Although Parseval is commonly used, variations of evaluation differ from three aspects: micro vs. macro F1 scores, binary vs. multiway ground truth, and left-heavy vs. right-heavy binarization. In this paper, we first propose a neural network model that unifies a pre-trained transformer and CKY-like algorithm, and then compare it with the previous models with different evaluation scenarios. The experimental results show that our model outperforms the previous systems. We conclude that (1) the pre-trained context embedding provides effective solutions to deal with implicit semantics in Chinese texts, and (2) using multiway ground truth is helpful since different binarization approaches lead to significant differences in performance.
dc.format.extent 387570 bytes-
dc.format.mimetype application/pdf-
dc.relation (關聯) Proceedings of the 12th Conference on Language Resources and Evaluation (LREC 2020), European Language Resources Association, pp.1019-1024
dc.title (題名) Chinese Discourse Parsing: Model and Evaluation
dc.type (資料類型) conference