Keyphrases
- xml retrieval
- language model
- topic models
- document retrieval
- probabilistic model
- test collection
- information retrieval
- language modeling
- topic modeling
- latent dirichlet allocation
- retrieval model
- information retrieval systems
- n gram
- text mining
- generative model
- retrieval systems
- query expansion
- text documents
- speech recognition
- query terms
- retrieval effectiveness
- relevant documents
- co occurrence
- document collections
- entity ranking
- smoothing methods
- average precision
- vector space model
- text retrieval
- bayesian networks
- expectation maximization
- xml elements
- retrieved documents
- relevance model
- relevance assessments
- passage retrieval
- active learning