A Hierarchical Entity-Based Approach to Structuralize User Generated Content in Social Media: A Case of Yahoo! Answers Baichuan Li author Jing Liu author Chin-Yew Lin author Irwin King author Michael R Lyu author 2013-10 text Proceedings of the 2013 Conference on Empirical Methods in Natural Language Processing David Yarowsky editor Timothy Baldwin editor Anna Korhonen editor Karen Livescu editor Steven Bethard editor Association for Computational Linguistics Seattle, Washington, USA conference publication li-etal-2013-hierarchical https://aclanthology.org/D13-1159/ 2013-10 1521 1532