Related Experiment Video
Updated: Apr 1, 2026

Evidence-based Knowledge Synthesis and Hypothesis Validation: Navigating Biomedical Knowledge Bases via Explainable AI and Agentic Systems
Published on: June 13, 2025
Design of Automatic Extraction Algorithm of Knowledge Points for MOOCs
Haijian Chen1, Dongmei Han2, Yonghui Dai3
1School of Information Management and Engineering, Shanghai University of Finance and Economics, 777 Guoding Road, Shanghai 200433, China ; School of Open Education, Shanghai Open University, 288 GuoShun Road, Shanghai 200433, China.
Abstract:
In recent years, Massive Open Online Courses (MOOCs) are very popular among college students and have a powerful impact on academic institutions. In the MOOCs environment, knowledge discovery and knowledge sharing are very important, which currently are often achieved by ontology techniques. In building ontology, automatic extraction technology is crucial. Because the general methods of text mining algorithm do not have obvious effect on online course, we designed automatic extracting course knowledge points (AECKP) algorithm for online course. It includes document classification, Chinese word segmentation, and POS tagging for each document. Vector Space Model (VSM) is used to calculate similarity and design the weight to optimize the TF-IDF algorithm output values, and the higher scores will be selected as knowledge points. Course documents of "C programming language" are selected for the experiment in this study. The results show that the proposed approach can achieve satisfactory accuracy rate and recall rate.
Related Concept Videos
Extraction: Advanced Methods
Extraction: Partition and Distribution Coefficients
For extracting a solute from an aqueous phase into an...
Aggregates Classification
Petrographic classification groups aggregates based on common mineralogical characteristics. Some of the common mineral groups found in aggregates are...
Natural and Artificial Concepts
Introduction to Learning
In contrast to learned behaviors, unlearned behaviors such as crying, sexual...
Associative Learning
Classical conditioning, also known...