Keyphrases
- information retrieval
- natural language
- language processing
- question answering
- information extraction
- information retrieval systems
- linguistic analysis
- natural language processing
- semantic analysis
- document collections
- tasks in natural language processing
- natural language interface
- knowledge representation
- semantic interpretation
- vector space model
- machine learning
- natural language understanding
- query expansion
- relevance feedback
- test collection
- document retrieval
- learning to rank
- search engine
- information access
- language model
- latent semantic indexing
- text mining
- computational linguistics
- semantic representation
- data sets
- natural language sentences
- case study
- knowledge discovery
- natural language text
- information filtering
- language modeling
- information seeking
- retrieval systems