Divide-and-conquer memetic algorithm for online multi-objective test paper generation

Nguyen, M.L., Hui, S.C. and Fong, A.C.M. (2012) Divide-and-conquer memetic algorithm for online multi-objective test paper generation. Memetic Computing, 4(1), pp. 33-47.

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Abstract

Online test paper generation (Online-TPG) generates a test paper automatically online according to user specification based on multiple assessment criteria, and the generated test paper can then be attempted online by user. Online-TPG is challenging as it is a multi-objective optimization problem that is NP-hard, and it is also required to satisfy the online generation requirement. In this paper, we propose an efficient multi-objective optimization approach based on the divide-and-conquer memetic algorithm (DAC-MA) for Online-TPG. Instead of solving the multi-objective constraints simultaneously, the set of constraints is divided into two subsets of relevant constraints, which can then be solved separately and effectively by evolutionary computation and local search of DAC-MA. The empirical performance results have shown that the proposed approach has outperformed other TPG techniques in terms of runtime efficiency and paper quality.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Fong, Dr Alvis Cheuk Min
Authors: Nguyen, M.L., Hui, S.C., and Fong, A.C.M.
Subjects:Q Science > QA Mathematics > QA75 Electronic computers. Computer science
College/School:College of Science and Engineering > School of Computing Science
Journal Name:Memetic Computing
Publisher:Springer
ISSN:1865-9284
ISSN (Online):1865-9292
First Published:10.1007/s12293-012-0077-z

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