what articles you have read? i work in automatic query expansion and automatic thesaurus generation, and i use lucene for my tests, but, by now, i don't have excellent results. In a few days i will have results based in this method:
Concept Based Query Expansion (1993) Yonggang Qiu Department of Computer Science Swiss Federal Institute of... Proceedings of SIGIR-93, 16th ACM International Conference on Research and Development in Information Retrieval http://citeseer.ist.psu.edu/qiu93concept.html are you interested? jose Sorry for my english José Ramón Pérez Agüera Despacho 411 tlf. 913947599 Dept. de Sistemas Informáticos y Programación Facultad de Informática Universidad Complutense de Madrid ----- Mensaje original ----- De: Rajesh Munavalli <[EMAIL PROTECTED]> Fecha: Jueves, Enero 19, 2006 6:44 pm Asunto: information theory based expanded query term boosting > Hi, > Has anyone experimented information theory based expanded > query > weight boosting for Lucene? > > When the user query is small, there are several ways to > expand > the query terms by synonym terms, morph terms etc. I read several > articles on how different boosting levels affect the precision and > recall of the expanded query. In the context of Lucene, is there a > systematic study conducted to analyze different boosting schemes? > It > would be nice to have a theoretical proof rather than empirically > setting boost levels for the expanded query terms. The main > disadvantage > of empirical boost levels is that there is no cross system > comparison > and is highly dependent on the test bed. > > Thanks, > > Rajesh Munavalli > > ------------------------------------------------------------------- > -- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
