Keyphrases
- information retrieval
- search engine
- information retrieval systems
- language model
- question answering
- mobile commerce
- mobile devices
- mobile communication
- mobile phone
- information filtering
- information extraction
- document retrieval
- vector space model
- learning to rank
- information access
- test collection
- mobile services
- information seeking
- mobile applications
- retrieval model
- data mining
- autonomous mobile
- intelligent mobile
- mobile networks
- retrieval systems
- text mining
- machine learning