Interactive sentence combining and paraphrasing in support of integrated writing and grammar instruction: a new application area for natural language sentence generators

Authors:
Karin Harbusch;Camiel Van Breugel;Ulrich Koch;Gerard Kempen
Affiliations:
University of Koblenz-Landau, Koblenz, Germany;University of Koblenz-Landau, Koblenz, Germany;University of Koblenz-Landau, Koblenz, Germany;Max Planck Institute, AH Nijmegen, Netherlands
Venue:
ENLG '07 Proceedings of the Eleventh European Workshop on Natural Language Generation
Year:
2007

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Abstract

The potential of sentence generators as engines in Intelligent Computer-Assisted Language Learning and teaching (ICALL) software has hardly been explored. We sketch the prototype of COMPASS, a system that supports integrated writing and grammar curricula for 10 to 14 year old elementary or secondary schoolers. The system enables first- or second-language teachers to design controlled writing exercises, in particular of the "sentence combining" variety. The system includes facilities for error diagnosis and on-line feedback. Syntactic structures built by students or system can be displayed as easily understood phrase-structure or dependency trees, adapted to the student's level of grammatical knowledge. The heart of the system is a specially designed generator capable of lexically guided sentence generation, of generating syntactic paraphrases, and displaying syntactic structures visually.