LDTM: A Latent Document Type Model for Cumulative Citation Recommendation Jingang Wang author Dandan Song author Zhiwei Zhang author Lejian Liao author Luo Si author Chin-Yew Lin author 2015-09 text Proceedings of the 2015 Conference on Empirical Methods in Natural Language Processing Lluís Màrquez editor Chris Callison-Burch editor Jian Su editor Association for Computational Linguistics Lisbon, Portugal conference publication wang-etal-2015-ldtm 10.18653/v1/D15-1066 https://aclanthology.org/D15-1066/ 2015-09 561 566