NUTKS at NTCIR-12 MobileClick2: iUnit Ranking Subtask Using Topic Model.
Tatsunori YoshiokaTakashi YukawaPublished in: NTCIR (2016)
Keyphrases
- topic models
- baseline models
- latent dirichlet allocation
- topic modeling
- text mining
- ranking algorithm
- latent topics
- relevance model
- evaluation metrics
- latent variables
- generative model
- test collection
- text documents
- web search
- probabilistic model
- co occurrence
- probabilistic topic models
- ranking functions
- gibbs sampling
- microblog posts
- latent topic model
- databases
- text corpora
- prior knowledge