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ERIC Number: EJ794621
Record Type: Journal
Publication Date: 2008-Aug
Pages: 17
Abstractor: Author
Reference Count: 0
ISBN: N/A
ISSN: ISSN-0360-1315
An Enhanced Genetic Approach to Optimizing Auto-Reply Accuracy of an E-Learning System
Hwang, Gwo-Jen; Yin, Peng-Yeng; Wang, Tzu-Ting; Tseng, Judy C.R.; Hwang, Gwo-Haur
Computers & Education, v51 n1 p337-353 Aug 2008
With the rapid development in Information Technology (IT), the Internet has become one of the central media for conducting learning. However, most of the existing web-based learning systems only provide stand-alone subject materials for browsing and may face some drawbacks. For example, if students encounter problems during the learning process, their learning performances could be significantly devastated due to no instant aid. As an on-line learning system may interact with thousands of students, it is almost impossible for the teachers or the teaching assistants to answer all the students' questions manually, which is not only inefficient, but also human laborious. To cope with this problem, an e-learning system that is able to automatically answer the students' questions on the fly based on the training cases given by the teacher will be presented in this paper. Moreover, an enhanced genetic approach is proposed to optimize the weights of keywords for each candidate answer according to the feedbacks provided by the students, hence more accurate answers can be provided in the future. Experimental results have shown that the developed system can provide more accurate answerers than existing approaches by employing the self-adjusting method. (Contains 7 figures and 13 tables.)
Elsevier. 6277 Sea Harbor Drive, Orlando, FL 32887-4800. Tel: 877-839-7126; Tel: 407-345-4020; Fax: 407-363-1354; e-mail: usjcs@elsevier.com; Web site: http://www.elsevier.com
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A