Title
Extraction and Portrait of Knowledge Points for Open Learning Resources.
Abstract
This article explores how to use the technology of text summarization and keyword extraction to automatically extract key knowledge points from massive educational resources and use open resources to generate feature portraits of relevant knowledge points. Specifically, this article takes the field of programming competitions as an example, firstly, crawl the problem solution resources of program design related issues, use data preprocessing to clean the data, then, use unsupervised extraction models based on Bert and centrality to summarize the documents of the resources, the LDA model is used to extract keywords from the generated document summary to identify relevant knowledge points in the resource. Finally, crawl and analyze resources based on knowledge points to establish relevant feature portraits for knowledge points. Unlike manual analysis of resources, this method can automatically select candidate knowledge points, greatly reduce labor costs.
Year
DOI
Venue
2020
10.1007/978-3-030-60029-7_5
WISA
DocType
Citations 
PageRank 
Conference
0
0.34
References 
Authors
0
7
Name
Order
Citations
PageRank
Jian Yu101.35
Tingxu Jiang200.34
Tianyi Xu36414.20
Jie Gao42174155.61
Jun Chen500.34
Mei Yu605.41
Mankun Zhao773.90