Keyphrases
- information retrieval
- text mining
- information retrieval systems
- document retrieval
- document collections
- search engine
- relevance feedback
- question answering
- databases
- information retrieval evaluation
- computational linguistics
- language modeling
- learning to rank
- text retrieval
- data sets
- test collection
- retrieval systems
- information extraction
- knowledge discovery
- keywords
- data mining
- term weighting
- neural network
- systematic review