RT Journal T1 Online Educational Resources Recommendation System Based on Knowledge Graph Technology A1 LUO Jiexi,LIU Shuai,ZHANG Yuzhi,LI Zhengdan,SUN Yufei,ZHANG Shenglin PB Frontiers of Data and Computing FD 2022-06-20 YR 2022 JF Frontiers of Data and Domputing JO Frontiers of Data and Computing VO 4 IS 3 SP 3 DO 10.11871/jfdc.issn.2096-742X.2022.03.001 K1 ;knowledge graph;educational resource;recommendation system;graph embedding LK {http://www.jfdc.cnic.cn/EN/article/article_223.shtml}