Biased LexRank: Passage retrieval using random walks with question-based priors.
Jahna OtterbacherGünes ErkanDragomir R. RadevPublished in: Inf. Process. Manag. (2009)
Keyphrases
- random walk
- passage retrieval
- question answering
- question answering systems
- document retrieval
- audio visual
- language model
- information retrieval
- link prediction
- markov chain
- directed graph
- query expansion
- relevance model
- retrieval model
- quantitative evaluation
- multi modal
- free text
- information extraction
- natural language processing
- pseudo relevance feedback
- document collections
- state space