@inproceedings{Wang:2016:KEYPHRASE,
<br>&nbsp;&nbsp;&nbsp;&nbsp;  title = "Extracting Discriminative Keyphrases with Learned Semantic Hierarchies",
<br>&nbsp;&nbsp;&nbsp;&nbsp;  author = "Wang, Yunli and Jin, Yong and Zhu, Xiaodan and Goutte, Cyril",
<br>&nbsp;&nbsp;&nbsp;&nbsp;  booktitle = "Proceedings of the  International Conference on Computational Linguistics (COLING)",
<br>&nbsp;&nbsp;&nbsp;&nbsp;  year = "2016",
<br>&nbsp;&nbsp;&nbsp;&nbsp;  location = "Osaka, Japan",
<br>}