Computer adaptive evaluation method based on learning topic selection strategy
A computer and self-adaptive technology, applied in the field of computer self-adaptive evaluation based on the learning topic selection strategy, to achieve the effect of accelerating convergence, improving performance and improving accuracy
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[0109] In order to verify the effectiveness of the method of the present invention, this method selects the data set of Assistment2009 for experimental verification, wherein the data set already disclosed by assistance2009 includes math test questions and student answer records.
[0110] 1. First, data cleaning is performed on the data set, mainly from the following aspects: in the training data 1) knowledge points: filter knowledge points with less than 10 related questions; 2) questions: these questions must be answered at least 50 times ; 3) Behavior records: students must have at least 10 behavior records; in the test data 1) students who answer at least 150 questions are divided into test data; the final Assistment2009 data set contains 903 questions, 1473 students (training students 1426 / test student 47), 22 knowledge points, 58472 behavior records;
[0111] 2. Secondly, compare the topic selection algorithms, including random topic selection (random), IRT-based maximum ...
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