@article{Lixin Xia:1, author = {Lixin Xia,Jieyan Zeng,Chongwu Bi,Guanghui Ye}, title = {Identifying Hierarchy Evolution of User Interests with LDA Topic Model}, publisher = {Data Analysis and Knowledge Discovery}, year = {2019}, journal = {Data Analysis and Knowledge Discovery}, volume = {3}, number = {7}, eid = {1}, numpages = {12}, pages = {1}, keywords = {;Social Tags;LDA;User Interest;Hierarchical Structure}, url = {https://manu44.magtech.com.cn/Jwk_infotech_wk3/EN/abstract/article_4676.shtml}, doi = {10.11925/infotech.2096-3467.2018.1065} }