一种冷启动跨课程的知识追踪方法和系统

By constructing a sequence neural network model and a knowledge component prototype alignment mechanism, zero-sample cross-course knowledge tracing is achieved using source course data, solving the knowledge transfer problem in cold start scenarios and improving the accuracy and stability of knowledge tracing.

CN122415293APending Publication Date: 2026-07-17CHINA UNIV OF MINING & TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA UNIV OF MINING & TECH
Filing Date
2026-06-18
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies struggle to achieve cross-course knowledge tracking when student interaction data for the target course is lacking, especially in cold start scenarios where knowledge states cannot be effectively transferred.

Method used

A sequence neural network model is constructed, and a training sample set is built using the student answer sequence of the source course. Through stage-aware state modeling and knowledge component prototype alignment mechanism, the knowledge state representation of the source course is directly transferred to the target course, realizing zero-shot cross-course knowledge tracking.

Benefits of technology

This allows for direct application to the target course without using any student interaction data, solving the problem of traditional methods being unable to transfer knowledge across courses and improving the accuracy and stability of knowledge tracking.

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Abstract

本发明涉及一种冷启动跨课程的知识追踪方法和系统,属于知识追踪技术领域,解决了现有技术中缺乏能够在完全不使用目标课程任何学生答题数据下实现冷启动的跨课程知识追踪方法的问题。方法包括:获取源域课程的多个学生的答题序列构建训练样本集;构建序列神经网络模型,序列神经网络用于基于阶段状态感知得到学生知识状态表示,并基于学生知识状态表示预测作答结果;基于训练样本集对序列神经网络模型进行训练得到训练好的序列神经网络模型;基于目标域课程的待预测题目构建输入序列,将输入序列输入训练好的序列神经网络模型得到待预测题目的预测结果。实现了在完全不使用目标课程的任何学生答题数据情况下的跨课程冷启动知识追踪。
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