Keyphrases
- information retrieval
- international conference
- information retrieval systems
- text mining
- advances in information retrieval
- information extraction
- advances in artificial intelligence
- query expansion
- language model
- annual conference
- knowledge discovery and data mining
- retrieval systems
- search engine
- relevant documents
- document retrieval
- information seeking
- information access
- vector space model
- question answering
- international symposium
- document collections
- test collection
- artificial intelligence