Are Semantically Coherent Topic Models Useful for Ad Hoc Information Retrieval?
Romain DeveaudEric SanJuanPatrice BellotPublished in: ACL (2) (2013)
Keyphrases
- topic models
- ad hoc information retrieval
- language model
- probabilistic model
- topic modeling
- latent dirichlet allocation
- text mining
- co occurrence
- text documents
- latent topics
- generative model
- latent topic models
- semantic information
- n gram
- pseudo relevance feedback
- inter document similarities
- query expansion
- language modeling
- text corpora
- test collection
- databases
- relevance model
- active learning
- ad hoc retrieval
- probabilistic topic models
- natural language
- information retrieval
- machine learning