A Hierarchical Knowledge Representation for Expert Finding on Social Media Yanran Li author Wenjie Li author Sujian Li author 2015-07 text 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) Chengqing Zong editor Michael Strube editor Association for Computational Linguistics Beijing, China conference publication li-etal-2015-hierarchical-knowledge 10.3115/v1/P15-2102 https://aclanthology.org/P15-2102/ 2015-07 616 622