@InProceedings{hu-EtAl:2015:ACL-IJCNLP1,
  author    = {Hu, Linmei  and  Wang, Xuzhong  and  Zhang, Mengdi  and  Li, Juanzi  and  Li, Xiaoli  and  Shao, Chao  and  Tang, Jie  and  Liu, Yongbin},
  title     = {Learning Topic Hierarchies for Wikipedia Categories},
  booktitle = {Proceedings of the 53rd Annual Meeting of the Association for Computational Linguistics and the 7th International Joint Conference on Natural Language Processing (Volume 2: Short Papers)},
  month     = {July},
  year      = {2015},
  address   = {Beijing, China},
  publisher = {Association for Computational Linguistics},
  pages     = {346--351},
  url       = {http://www.aclweb.org/anthology/P15-2057}
}