IR-500: (2006) Murdock, V., Kelly, D., Croft, W. B. , Belkin, N. and Yuan, X., "Identifying and Improving Retrieval for Procedural Questions," in Information Processing & Management Volume 43 no. 1, pages 181-203. January 2007. [View Abstract] [View bibtex]
IR-263: (2002) Kelly, D., Murdock, V., Yuan, X., Croft, W. B. and Belkin, N., "Features of Documents Relevant to Task- and Fact-Oriented Questions," Proceedings of CIKM ’02 conference, pp. 645-647. [View Abstract] [View bibtex]