Passage Retrieval Based on Density Distributions of Terms and Its Applications to Document Retrieval and Question Answering.
Koichi KiseMarkus JunkerAndreas DengelKeinosuke MatsumotoPublished in: Reading and Learning (2004)
Keyphrases
- passage retrieval
- document retrieval
- question answering
- language model
- query terms
- information retrieval
- retrieval model
- cross language
- sentence retrieval
- relevance model
- text retrieval
- question answering systems
- document collections
- relevance feedback
- document ranking
- co occurrence
- pseudo relevance feedback
- natural language processing
- qa systems
- retrieval effectiveness
- retrieved documents
- audio visual
- query expansion
- information extraction
- quantitative evaluation
- xml retrieval
- language modeling
- semantic relatedness
- semantic similarity
- natural language
- artificial intelligence