PhraseCTM: Correlated Topic Modeling on Phrases within Markov Random Fields Weijing Huang author 2018-07 text Proceedings of the 56th Annual Meeting of the Association for Computational Linguistics (Volume 2: Short Papers) Iryna Gurevych editor Yusuke Miyao editor Association for Computational Linguistics Melbourne, Australia conference publication huang-2018-phrasectm 10.18653/v1/P18-2083 https://aclanthology.org/P18-2083/ 2018-07 521 526