Keyphrases
- information retrieval
- information retrieval systems
- test collection
- information extraction
- information retrieval evaluation
- vector space model
- learning to rank
- question answering
- retrieval systems
- information seeking
- language modeling
- information filtering
- text processing
- knowledge discovery
- artificial neural networks
- document collections
- data structure
- information systems
- neural network
- latent semantic indexing
- structured documents
- databases