A cognitive diagnosis method and system based on learning behavior

A diagnostic method and behavioral technology, applied in the field of intelligent education, to achieve the effect of predicting the level of knowledge

Active Publication Date: 2021-11-23
TSINGHUA UNIV
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  • Application Information

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Problems solved by technology

[0004] The embodiment of the present invention provides a cognitive diagnosis method and system based on learning behavior, which is used to solve some or all of the above-mentioned problems in the cognitive diagnosis method of the existing online education system

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  • A cognitive diagnosis method and system based on learning behavior
  • A cognitive diagnosis method and system based on learning behavior
  • A cognitive diagnosis method and system based on learning behavior

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Embodiment Construction

[0061] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0062] Technical basis of the present invention: traditional cognitive diagnosis is divided into one-dimensional continuous model and high-dimensional discrete model. Among them, the one-dimensional continuous model is represented by the item response theory (IRT) model, which uses one-dimensional variables to represent the characteristics of each student and test question, and uses the logis...

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Abstract

The embodiment of the present invention provides a cognitive diagnosis method and system based on learning behavior, the method includes: determining the student number and answer number to be cognitively diagnosed, and the student number and answer number are the same as the student's answers and corresponding answers included in the learning course One-to-one correspondence of the video records; input the student numbers and answer numbers to be cognitively diagnosed into the diagnostic model, and obtain the student cognitive diagnostic results output by the diagnostic model; wherein, the diagnostic model is based on test sample samples and corresponding Knowledge point labeling and corresponding video samples and corresponding video labeling training obtained; the diagnostic model is used to construct a curriculum map based on the test question sample and corresponding knowledge point labeling and corresponding video samples and corresponding video labeling, and After the node information of the course graph is updated through the graph neural network, a corresponding student cognitive diagnosis is performed on the learning course to be diagnosed. The embodiment of the present invention realizes the effective prediction of the knowledge level of the students.

Description

technical field [0001] The invention relates to the technical field of intelligent education, in particular to a cognitive diagnosis method and system based on learning behavior. Background technique [0002] Cognitive diagnosis is an important task proposed for the online education scene. It aims to diagnose the knowledge level of students by using the behavior of students on the online education website. One of the key technologies of path planning). [0003] The usual cognitive diagnosis method relies on students’ record of doing questions on the online learning platform. After obtaining each student’s question sequence and scores, both students and test questions are modeled. During the modeling process, students and test questions are modeled and analyzed. The student's answering result is predicted, and the student's answering question is predicted to be a binary classification problem. The model gradually optimizes the parameters during the classification process, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/62G06N3/04G06N3/08G06Q50/20
CPCG06N3/084G06Q50/205G06N3/048G06N3/045G06F18/214
Inventor 许斌毛亦铭
Owner TSINGHUA UNIV
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