Keyphrases
- information retrieval
- search engine
- multi modal
- information retrieval systems
- document retrieval
- information extraction
- structured documents
- vector space model
- document collections
- tf idf
- text processing
- text mining
- language model
- computational linguistics
- learning to rank
- conversational agent
- information filtering
- neural network
- information access
- language modeling
- retrieval systems
- test collection
- question answering
- collaborative filtering
- xml documents
- natural language
- case study