School of Computer Science and Engineering;
Huaihua University;
Huaihua;
418000;
China;
Key Laboratory of Wuling-Mountain Health Big Data Intelligent Processing and Application in Hunan Province Universities;
Huaihua;
418000;
China;
Key Laboratory of Intelligent Control Technology for Wuling-Mountain Ecological Agriculture in Hunan Province;
Huaihua;
418000;
China;
School of Computer;
Wuhan University;
Wuhan;
430072;
China;
Department of Electrical and Computer Engineering;
Duke University;
Durham;
NC 27708;
USA;
School of Computer Science and Engineering;
Yulin Normal University;
Yulin;
537000;
China;
Highly sparse dataset; normalized models; teaching recommendation factorization machines; excellent teacher recommendation;