1. Exploiting a large thesaurus for information retrieval;Aronson,1994
2. Implementation of the SMART information retrieval system;Buckley,1985
3. Optimization of relevance feedback weights;Buckley,1995
4. An approach to the automatic construction of global thesauri;Crouch;Information Processing and Management,1990
5. The automatic generation of extended queries;Crouch,1990