Applying Query Expansion Techniques to Ad Hoc Monolingual tasks with the IR-n system.

Elisa Noguera Fernando Llopis

Published in: CLEF (Working Notes) (2007)

Keyphrases

query expansion
information retrieval systems
information retrieval
retrieval effectiveness
ad hoc retrieval
language modeling
language model
text retrieval

relevance feedback
query terms
pseudo relevance feedback
relevant documents
retrieval model
model for information retrieval
automatic query expansion
language modeling framework

ranked retrieval
trec genomics track
passage retrieval
retrieved documents
query translation
expansion terms
federated search

original query
query expansion methods
query disambiguation
patent retrieval
term selection
relevance model
interactive query expansion