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Xu, J.; Weischedel, R.; Licuanan, A.: Evaluation of an extraction-based approach to answering definitional questions (2004)
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Xu, J.; Croft, W.B.: Topic-based language models for distributed retrieval (2000)
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Schroeder, J.; Xu, J.; Chen, H.; Chau, M.: Automated criminal link analysis based on domain knowledge (2007)
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Xu, J.; Weischedel, R.: Empirical studies on the impact of lexical resources on CLIR performance (2005)
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