Keyphrases
- information retrieval
- information retrieval systems
- databases
- information filtering
- information extraction
- vector space model
- question answering
- search engine
- data sets
- language processing
- text mining
- artificial intelligence
- neural network
- artificial neural networks
- website
- e learning
- language model
- document collections
- document retrieval
- learning to rank
- information seeking
- machine learning
- database
- text processing