Keyphrases
- information retrieval
- search engine
- text mining
- information retrieval systems
- language model
- information access
- vector space model
- computational linguistics
- tf idf
- information filtering
- query expansion
- test collection
- retrieval effectiveness
- information retrieval evaluation
- data sets
- language modeling
- learning to rank
- question answering
- document collections
- information extraction
- knowledge discovery
- query processing
- multiscale
- image sequences