Traditional approaches to spell checking are sometimes inadequate for the needs of non-native users because they are optimized for native speakers. Not only is it assumed that the user is capable of choosing between suggested corrections, but the suggestions themselves are optimized for the kinds of errors that native speakers make. Even if a non-native user were able to select the correct form from ...

Intelligent Language Tutoring Systems typically attempt to automatically diagnose learner errors in order to provide individualized feedback. One common approach is the use of mal-rules to extend normative grammars by licensing specific types of learner errors. In finite-state morphologies, mal-rules can be implemented as two-level rules or replace rules. However, unlike the phonological rules of ...