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Comprehensive knowledge point mastering probability prediction model construction method

A construction method and probability prediction technology, applied in the field of education and teaching system, to achieve the effect of mastering probability accurately

Inactive Publication Date: 2020-02-21
SHANGHAI SQUIRREL CLASSROOM ARTIFICIAL INTELLIGENCE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In the prior art, there is a lack of a model capable of predicting the mastery probability of comprehensive knowledge points

Method used

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  • Comprehensive knowledge point mastering probability prediction model construction method

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Comprehensive knowledge points to master the construction method of probability forecasting model, including the following steps:

[0021] Step 1. Calculation of inh: the inh refers to all the basic knowledge points A under the comprehensive knowledge point B that the student has mastered 1 、A 2 、A 3 ...A n-1 、A n In the case of , the probability P(-B|A 1 ∩A 2 ∩A 3 ∩...A n-1 ∩A n ), ie inh=P(-B|A 1 ∩A 2 ∩A 3 ∩...A n-1 ∩A n ); 0≤inh≤1;

[0022] Obtain the test results of N students on the comprehensive knowledge point B from the database DB, and the N students are all on the basic knowledge point A 1 、A 2 、A 3 ...A n-1 、A n All the students who have mastered; among the N test results, the "not mastered" results are counted, and the number of "not mastered" results obtained is M, and the calculation

[0023] Step two, p i Calculation: the p i Refers to students at a basic knowledge point A i The situation that has not been mastered, and the basic k...

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Abstract

The invention belongs to the technical field of education and teaching systems, and particularly relates to a construction method of a comprehensive knowledge point mastering probability prediction model capable of being applied to an education and teaching system. The construction method comprises the following steps: step 1, inh calculation; step 2, pi calculation; and step 3, model construction. The model constructed by the invention can accurately test the mastering probability of the students on the comprehensive knowledge points based on the test results (mastering / not mastering) of thestudents on the basic knowledge points.

Description

technical field [0001] The invention belongs to the technical field of education and teaching systems, and in particular relates to a method for constructing a comprehensive knowledge point mastery probability prediction model that can be applied in the education and teaching system. Background technique [0002] The knowledge point map relationship commonly used in the existing education and teaching system is a logical relationship, that is, there is a logical relationship between the knowledge points, such as: A->B->C (letters represent different knowledge points) , A is the front of B, A is more basic and simpler than B; C is the back of B, and C is more advanced and complex than B. Therefore, if B has mastered, we can infer that A has mastered; otherwise, B has not mastered, then we can infer that C cannot master either. Therefore, even if the knowledge points are divided into smaller and more detailed ones, the use of the logical relationship map can improve the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/20
CPCG06Q10/04G06Q50/205
Inventor 崔炜贾静
Owner SHANGHAI SQUIRREL CLASSROOM ARTIFICIAL INTELLIGENCE TECH CO LTD
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