Cross-lingual Pseudo Relevance Feedback Based on Weak Relevant Topic Alignment Xuwen Wang author Qiang Zhang author Xiaojie Wang author Junlian Li author 2015-10 text Proceedings of the 29th Pacific Asia Conference on Language, Information and Computation Hai Zhao editor Shanghai, China conference publication wang-etal-2015-cross https://aclanthology.org/Y15-1061/ 2015-10 529 534