Keyphrases
- information retrieval
- rank aggregation
- search engine
- information retrieval systems
- document retrieval
- information filtering
- information access
- learning to rank
- document collections
- test collection
- language model
- text retrieval
- question answering
- text processing
- distributed information retrieval
- tf idf
- aggregation operators
- vector space model
- real time
- language modeling
- retrieval model
- sensor networks
- knowledge discovery
- digital libraries
- website
- neural network