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研究生： 吳瑀瑄
Wu, Yu-Hsuan
論文名稱： 機器學習之英文動詞誤用改正
Learning to Correct English Verb Misuse based on Revision Log
指導教授： 張俊盛
Chang, Jason S.
口試委員: 蘇豐文
Soo, Von-Wun
陳浩然
Chen, Hao-Jan
學位類別： 碩士
Master
系所名稱： 電機資訊學院 - 資訊系統與應用研究所
Institute of Information Systems and Applications
論文出版年： 2017
畢業學年度： 105
語文別： 英文
論文頁數： 50
中文關鍵詞： 自動錯誤改正 、動詞推薦 、編修紀錄
外文關鍵詞： Verb Suggestion, The Wiked Error Corpus, Revision Log
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    • 我們提出了一個偵測錯誤與改正錯誤的方法。根據劍橋學習者語料庫 (Cambridge Learner Corpus) 的統計，在英文學習者常犯的錯誤中，除了拼字錯誤外，最多的就是動詞誤用 (Replace Verb Error)。我們使用了維基百科的編修紀錄來建立通道模型 (Channel Model) ，並結合搭配詞組 (Collocation) 來取出候選動詞組，用以來取代句子中可能錯誤的動詞。我們的改錯方法包含了句子剖析 (Parsing)、動詞辨認、應用迴歸分析於通道模型、 擷取候選詞組，最後重新排序候選詞組中的動詞，來達成動詞改正建議的目的。

    According to the analysis of a sample of Cambridge Learner Corpus, the most frequent type of grammatical errors is using a wrong verb. We introduce a method for learning to detect and correct potential verb errors in a given sentence. In our approach, alternative verbs are considered to replace the verb based on verb- object collocations and a channel model trained on an error-annotated corpus. The method involves parsing the sentence, identifying the verbs, applying regression on channel model, retrieving a list of alternative verbs, and re-ranking each alternative. Our method combine channel and language models, resulting in high recall and precision rates in detecting and high MRR in correcting verb misuse.

    Abstract ii Acknowledgements iii Contents iv List of Figures vi List of Tables viii Chapter 1 Introduction ........................ 1 1.1 TheoreticalBackground ........................ 2 1.2 Motivation................................ 2 1.3 ThesisOrganization........................... 4 Chapter 2 Related Work ........................ 5 2.1  GEC for Different Error Types..................... 5 
2.2  GEC Approaches ............................ 6 
2.2.1 The Statistical Machine Translation. . . . . . . . . . . . . . 6 2.2.2 The Classification Approach.................. 7 2.2.3 HybridApproach ........................ 8 Chapter 3 Methodology ........................ 10 3.1  ProblemStatement........................... 10 3.2  Tagging Learner Corpus with Error Types . . . . . . . . . . . . . . 11 3.3  Applying Regression Model ...................... 13 3.4  Detecting and Correcting RV Errors.................. 17 3.4.1 IdentifyingVerbs ........................ 18 3.4.2 GeneratingCandidateList................... 20 3.4.3 Detecting RV Errors based on Language Model . . . . . . . 23 3.4.4 Re-rankingAlternatives .................... 24 
 Chapter 4  Experimental Setting ........................ 26 4.1  Dataset ................................. 27 4.2  Correction Systems Compared..................... 31 4.3  Evaluation Metrics ........................... 32 4.3.1 Performance of RV Error Detection . . . . . . . . . . . . . . 32 4.3.2 Performance of Verb Suggestion................ 33 
 Chapter 5  Results and Discussion ........................ 34 
5.1 Results for RV Error Detection .................... 34 5.2 Results for Verb Suggestion ...................... 35 5.3 Error Analysis.............................. 38 
 Chapter 6 Conclusion and Future Work .............................. 41 Reference .............................. 43 
Appendices .............................. 47

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