Controlled Language Tools' and'Information Extraction Tools' for CALL Applications

Abstract

This paper describes how mature NLP that has been successfully applied in the area of controlled language checking can be used to deliver intelligent CALL applications. It describes how an autonomous, longdistance 2nd language learning system for advanced learners can be created. The architecture of the system consists of a web-based multimodal user interface, skillspecific learning tools (reading, listening, speaking and writing tool), and a set of NLP-based evaluation tools. All modules are integrated in a flexible software architecture ensuring a user-friendly environment based on advanced concepts in language didactics. The thrust of the project is to show the potential of NLP for automatic evaluation of students’ productions.