An LDA-smoothed relevance model for document expansion: a case study for spoken document retrieval.
Debasis GangulyJohannes LevelingGareth J. F. JonesPublished in: SIGIR (2013)
Keyphrases
- relevance model
- spoken document retrieval
- topic models
- latent dirichlet allocation
- topic modeling
- language model
- information retrieval
- cross language
- test collection
- out of vocabulary
- language modeling
- text documents
- generative model
- relevance feedback
- document retrieval
- feature extraction
- query expansion
- broadcast news
- pseudo relevance feedback
- dimensionality reduction
- vector space model
- text mining
- context dependent
- document collections
- text classification
- k nearest neighbor
- image annotation
- retrieval model
- relevant documents
- multimedia