Statistical Machine Translation based Passage Retrieval - Experiment at NTCIR-7 IR4QA Task.
Tatsuhiro HyodoTomoyosi AkibaPublished in: NTCIR (2008)
Keyphrases
- passage retrieval
- statistical machine translation
- language model
- test collection
- question answering
- cross language information retrieval
- retrieval model
- document retrieval
- cross language
- information retrieval
- translation model
- language modeling
- query expansion
- n gram
- retrieval effectiveness
- machine translation
- probabilistic model
- chinese english
- query terms
- relevant documents
- average precision
- relevance model
- audio visual
- retrieval systems
- pseudo relevance feedback
- information extraction
- evaluation metrics
- vector space model
- text retrieval
- natural language processing
- multiword
- term frequency
- machine translation system
- text classification
- multi modal
- semantic relatedness
- query translation
- document representation
- word sense disambiguation