Experts’ Retrieval with Multiword-Enhanced Author Topic Model Nikhil Johri author Dan Roth author Yuancheng Tu author 2010-06 text Proceedings of the NAACL HLT 2010 Workshop on Semantic Search Donghui Feng editor Jamie Callan editor Eduard Hovy editor Marius Pasca editor Association for Computational Linguistics Los Angeles, California conference publication johri-etal-2010-experts https://aclanthology.org/W10-1202/ 2010-06 10 18