Judging method and system for similar questions

Abstract

The invention discloses a judging method and system for similar questions. The judging method comprises the following steps: analyzing heterogeneous data information in a target test question pair, wherein the target test question pair comprises a first test question and a second test question, and the heterogeneous data information comprises a text, pictures and knowledge points; transmitting theheterogeneous data information to a preset semantic representation calculation model, and calculating to obtain a first semantic representation and a second semantic representation; separately calculating the first semantic representation and the second semantic representation by adopting a preset similarity calculation method to obtain a similarity goal of the first test question according to the second test question; and judging whether the similarity goal is larger than the preset similarity goal threshold value or not, and if yes, judging that the first test question is similar to the second test question. By the adoption of the method, the similar test questions are judged by adopting the text, the pictures and the knowledge points, and the problem that the only text is used as the judgement condition, and the higher analyticity is lacked, so that the accuracy of the judgement result of the similar test questions is low is solved.

Description

technical field [0001] The invention relates to the technical field of machine learning and educational data mining, in particular to a method and system for judging similar test questions. Background technique [0002] With the rapid development of adaptive education, many education systems or companies have collected a large amount of test question data, which is used to recommend similar test question sets to students to strengthen their knowledge points or problem-solving skills. Therefore, how to make full use of test questions For heterogeneous data, accurately calculating the similarity between test questions to determine whether they are similar questions has always been an important issue in the field of educational data mining. The methods for judging similar test questions mainly include the following methods: Use the test question text to determine whether they are similar questions , first calculate the TF-IDF value of each word, then construct the test question...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a method for judging similar test questions, which is used to solve the problem that only the text in the test questions is used as the judgment condition in the existing similar test question judgment process, and the pictures and knowledge point information of the test questions are not used. The semantic information of the heterogeneous data contained in the test questions is not fully utilized, and it lacks strong analytical capabilities, resulting in low accuracy of judgment results for similar test questions

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