TREC-5 Experiments at Dublin City University: Query Space Reduction, Spanish & Character Shape Encoding.
Fergus KelledyAlan F. SmeatonPublished in: TREC (1996)
Keyphrases
- space reduction
- dublin city university
- relevance feedback
- question answering
- ad hoc retrieval
- query processing
- query expansion
- user queries
- information retrieval
- test collection
- retrieval effectiveness
- query terms
- keywords
- multilingual retrieval
- relevant documents
- retrieval systems
- retrieval model
- vector space
- average precision
- pseudo relevance feedback
- original query
- query dependent
- principal component analysis
- feature space
- machine learning