n Language Matters : Studies in the Languages of Southern Africa - Automatic error detection in second language learners' writing

Volume 37, Issue 2
  • ISSN : 0256-5986



This article presents a system designed for automatic detection of errors in second language learners' writing. The system contains two modules, one aimed at detecting and correcting of spelling errors, and a second module providing a broad detection of higher level language errors. The article describes extensions to existing error detection algorithms and introduces a novel method of context-based ranking of spelling correction candidates based on probabilistic context-free grammars. The performance of the system is evaluated on real data with manually marked and classified errors.

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