Minimum Bayes-risk decoding considering word significance for information retrieval system.
Hiroaki NanjoTeruhisa MisuTatsuya KawaharaPublished in: INTERSPEECH (2005)
Keyphrases
- information retrieval systems
- bayes risk
- loss function
- upper and lower bounds
- information retrieval
- document collections
- query expansion
- retrieval systems
- retrieval model
- distortion measure
- n gram
- relevant documents
- posterior probability
- co occurrence
- data sets
- reproducing kernel hilbert space
- term weighting
- special case
- relevance feedback
- training set
- high dimensional
- approximation error
- squared error
- data points