Multiple Cases-Based Reasoning Including Justification

Case-based reasoning is a promising approach to develop a tutoring system. However, there still remains some problems to be solved. First, the system should explain the inference procedure upon the user’s requests. Second, the explanation structure in the case may be inconsistent during the adaptation process. Third, when the system finds a gap between the new problem situation and the retrieved case, more complete matching should be performed by using not only the case but also multiple cases. In this paper, the authors will introduce the explanation structure so as to explain the reasoning process. Then, the authors will introduce a justification process for justifying the explanation structure. Finally, the authors will study the adaptability of multiple cases to create a solution which explains a complex reasoning process.