IR-356: (2003) Allan, J., Aslam, J., Belkin, N., Buckley, C., Callan, J., Croft, W. B. , Dumais, S., Fuhr, N., Harman, D., Harper, D., Hiemstra, D., Hofmann, T., Hovy, E., Kraaij, W., Lafferty, J., Lavrenko, V., Lewis, D., Liddy, L., Manmatha, R., McCallum, A., Ponte, J., Prager, J., Radev, D., Resnik, P., Robertson, S., Rosenfeld, R., Roukos, S., Sanderson, M., Schwartz, R., Singhal, A., Smeaton, A., Turtle, H., Voorhees, E., Weischedel, R., Xu, J. and Zhai, C., "Challenges in Information Retrieval Language Modeling," SIGIR Forum, Spring 2003, Volume 37 Number 1. [View bibtex]