Keyphrases
- information retrieval
- test collection
- question answering
- english language
- natural language
- routing protocol
- pseudo relevance feedback
- routing problem
- ad hoc networks
- language learning
- retrieval effectiveness
- routing algorithm
- network topology
- cross language
- answer questions
- machine translation
- ad hoc retrieval
- cross lingual
- retrieval systems
- shortest path
- relevance judgments
- parse tree
- relevance feedback
- english text
- ir evaluation
- routing decisions
- reuters corpus volume