Automatic summary assessment for intelligent tutoring systems

Automatic summary assessment for intelligent tutoring systems Summary writing is an important part of many English Language Examinations. As grading students’ summary writings is a very time-consuming task, computer-assisted assessment will help teachers carry out the grading more effectively. Several techniques such as latent semantic analysis (LSA), n -gram co-occurrence and BLEU have been proposed to support automatic evaluation of summaries. However, their performance is not satisfactory for assessing summary writings. To improve the performance, this paper proposes an ensemble approach that integrates LSA and n -gram co-occurrence. As a result, the proposed ensemble approach is able to achieve high accuracy and improve the performance quite substantially compared with current techniques. A summary assessment system based on the proposed approach has also been developed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Computers & Education Elsevier

Automatic summary assessment for intelligent tutoring systems

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Publisher
Elsevier
Copyright
Copyright © 2009 Elsevier Ltd
ISSN
0360-1315
eISSN
1873-782X
D.O.I.
10.1016/j.compedu.2009.05.008
Publisher site
See Article on Publisher Site

Abstract

Summary writing is an important part of many English Language Examinations. As grading students’ summary writings is a very time-consuming task, computer-assisted assessment will help teachers carry out the grading more effectively. Several techniques such as latent semantic analysis (LSA), n -gram co-occurrence and BLEU have been proposed to support automatic evaluation of summaries. However, their performance is not satisfactory for assessing summary writings. To improve the performance, this paper proposes an ensemble approach that integrates LSA and n -gram co-occurrence. As a result, the proposed ensemble approach is able to achieve high accuracy and improve the performance quite substantially compared with current techniques. A summary assessment system based on the proposed approach has also been developed.

Journal

Computers & EducationElsevier

Published: Nov 1, 2009

References

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