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ERIC Number: EJ849509
Record Type: Journal
Publication Date: 2009-May
Pages: 21
Abstractor: As Provided
Reference Count: 34
ISSN: ISSN-0742-7778
Using Statistical Techniques and Web Search to Correct ESL Errors
Gamon, Michael; Leacock, Claudia; Brockett, Chris; Dolan, William B.; Gao, Jianfeng; Belenko, Dmitriy; Klementiev, Alexandre
CALICO Journal, v26 n3 p491-511 May 2009
In this paper we present a system for automatic correction of errors made by learners of English. The system has two novel aspects. First, machine-learned classifiers trained on large amounts of native data and a very large language model are combined to optimize the precision of suggested corrections. Second, the user can access real-life web examples of both their original formulation and the suggested correction. We discuss technical details of the system, including the choice of classifier, feature sets, and language model. We also present results from an evaluation of the system on a set of corpora. We perform an automatic evaluation on native English data and a detailed manual analysis of performance on three corpora of nonnative writing: the Chinese Learners' of English Corpus (CLEC) and two corpora of web and email writing. (Contains 10 figures, 8 tables and 3 notes.)
Computer Assisted Language Instruction Consortium. 214 Centennial Hall, 601 University Drive, San Marcos, TX 78666. Tel: 512-245-1417; Fax: 512-245-9089; e-mail: Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A