PROBLEM TO BE SOLVED: To estimate the quality of matching with respondents and the quality of mutual learning results for use in scenes where learners mutually teach e-learning contents or difficult-to-understand parts.SOLUTION: A mutual teaching quality estimating device for automatically estimating the quality of mutual learning among learners on a network participating in e-learning or social learning comprises acquiring means for acquiring learning logs of e-learning and mechanical learning means that inputs the acquired learning logs of e-learning and the level of satisfaction with mutual teaching by students and the accuracy of mutual teaching as teacher signals and outputs a model for quality estimation.
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