Okapi at TREC-6 Automatic ad hoc, VLC, routing, filtering and QSDR.

@inproceedings{walker-1997-okapi, author = {Steve Walker and Stephen E. Robertson and Mohand Boughanem and Gareth J. F. Jones and Karen Sparck Jones}, editor = {Ellen M. Voorhees and Donna K. Harman}, title = {{Okapi at TREC-6 Automatic ad hoc, VLC, routing, filtering and QSDR}}, booktitle = {{Proceedings of The Sixth Text REtrieval Conference, TREC 1997, Gaithersburg, Maryland, USA, November 19-21, 1997}}, series = {NIST Special Publication}, volume = {500-240}, pages = {125--136}, publisher = {National Institute of Standards and Technology (NIST)}, year = {1997}, url = {http://trec.nist.gov/pubs/trec6/papers/city_proc_auto.ps} }