Yandong Liu, Nitya Narasimhan, Venu Vasudevan, Eugene Agichtein. Is this urgent?: exploring time-sensitive information needs in collaborative question answering. In James Allan, Javed A. Aslam, Mark Sanderson, ChengXiang Zhai, Justin Zobel, editors, Proceedings of the 32nd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2009, Boston, MA, USA, July 19-23, 2009. pages 712-713, ACM, 2009.
Abstract is missing.