Structuring and expanding queries in the probabilistic model.

@inproceedings{ogawa-1999-structuring, author = {Yasushi Ogawa and Hiroko Mano and Masumi Narita and Sakiko Honma}, editor = {Ellen M. Voorhees and Donna K. Harman}, title = {{Structuring and expanding queries in the probabilistic model}}, booktitle = {{Proceedings of The Eighth Text REtrieval Conference, TREC 1999, Gaithersburg, Maryland, USA, November 17-19, 1999}}, series = {NIST Special Publication}, volume = {500-246}, publisher = {National Institute of Standards and Technology (NIST)}, year = {1999}, url = {http://trec.nist.gov/pubs/trec8/papers/ricoh_notebook.pdf} }