Effective solution knowledge organization from discussion record

Authors:
Yuki Watanabe;Tomoko Kojiri;Toyohide Watanabe
Affiliations:
Department of Systems and Social Informatics, Graduate School of Information Science, Nagoya University, Chikusa-ku, Nagoya, Japan;Department of Systems and Social Informatics, Graduate School of Information Science, Nagoya University, Chikusa-ku, Nagoya, Japan;Department of Systems and Social Informatics, Graduate School of Information Science, Nagoya University, Chikusa-ku, Nagoya, Japan
Venue:
Intelligent Decision Technologies - Special issue on design of intelligent environment
Year:
2010

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Abstract

The discussion record in collaborative learning where participants generate their own answers by exchanging their opinions through a discussion is useful for other learners who tackle the same exercise. We propose a method for organizing solution knowledge in collaborative learning records as a solution knowledge graph which is a structured knowledge to derive answers. In this method, utterance collections of the same answering method are extracted and structured from the viewpoint of their effectiveness based on annotations attached by the participants. In addition, the structure of the solution knowledge graph is refined by evaluation of learners who use it as knowledge to solve exercises. We have constructed the prototype system for utilizing the solution knowledge graph in individual learning. From the experimental result, our system was reorganizing the solution knowledge graph according to the effectiveness of the utterance collections.