Learning Lexicon Models from Search Logs for Query Expansion Jianfeng Gao author Shasha Xie author Xiaodong He author Alnur Ali author 2012-07 text Proceedings of the 2012 Joint Conference on Empirical Methods in Natural Language Processing and Computational Natural Language Learning Jun’ichi Tsujii editor James Henderson editor Marius Paşca editor Association for Computational Linguistics Jeju Island, Korea conference publication gao-etal-2012-learning https://aclanthology.org/D12-1061/ 2012-07 666 676