Improving Robustness Using Query Expansion.
Ángel F. Zazo RodríguezJosé Luis Alonso BerrocalCarlos G. FiguerolaPublished in: CLEF (2007)
Keyphrases
- query expansion
- retrieval effectiveness
- language model
- information retrieval systems
- information retrieval
- text retrieval
- language modeling
- pseudo relevance feedback
- relevance feedback
- automatic query expansion
- improving search
- relevant documents
- retrieval model
- query translation
- biomedical information retrieval
- query expansion methods
- ranked retrieval
- query disambiguation
- web corpora
- pseudo feedback
- ad hoc retrieval
- retrieved documents
- document ranking
- vocabulary mismatch
- query specific
- model for information retrieval
- original query
- machine learning