IR-568: (2007) Liu, X. and Croft, W. B. , "Evaluating Text Representations for Retrieval of the Best Group of Documents," in the Proceedings of ECIR '08, Glasgow, Scotland, pp.454-462. [View bibtex]
IR-493: (2006) Liu, X. and Croft, W. B. , "Representing Clusters for Retrieval," Proceedings of the 29th Annual International ACM SIGIR Conference on Research & Development on Information Retrieval (SIGIR 2006), pp. 671-672. [View bibtex]
IR-492: (2006) Liu, X., "Cluster-based retrieval from a language-modeling perspective," the Doctoral Consortium of the 29th Annual International ACM SIGIR Conference on Research & Development on Information Retrieval (SIGIR 2006), abstract in Proceedings pp.737-738. [View bibtex]
IR-478: (2006) Liu, X. and Croft, W. B. , "Experiments on Retrieval of Optimal Clusters," CIIR Technical Report. [View bibtex]
IR-431: (2005) Liu, X., Croft, W. B. and Koll, M., "Finding Experts in Community-based Question-Answering Services," the Proceedings of CIKM 2005, pp.315-318. [View Abstract] [View bibtex]
IR-351: (2004) Liu, X., Croft, W. B. , Oh, P. and Hart, D., "Automatic Recognition of Reading Levels from User Queries," Proceedings of SIGIR '04, pp. 548-549, presented a poster. [View bibtex]
IR-347: (2004) Liu, X. and Croft, W. B. , "Cluster-Based Retrieval Using Language Models," Proceedings of SIGIR '04, pp. 186-193. [View Abstract] [View bibtex]
IR-321: (2003) AbdulJaleel, N., Corrada-Emmanuel, A., Li, Q., Liu, X., Wade, C. and Allan, J., "UMass at TREC 2003: HARD and QA (Notebook version) ," Notebook Proceedings of TREC 2003, NIST special publication number 500-255, pp. 715-725. [View Abstract] [View bibtex]
IR-318: (2004) Liu, X. and Croft, W. B. , "Statistical Language Modeling For Information Retrieval," The Annual Review of Information Science and Technology, vol. 39, pp. 3-31. [View Abstract] [View bibtex]
IR-268: (2002) Liu, X. and Croft, W. B. , "Passage Retrieval Based On Language Models," Proceedings of CIKM ’02 conference, pp. 375-382. [View Abstract] [View bibtex]