Multivariate Beta Mixture Model for Automatic Identification of Topical Authoritative Users in Community Question Answering Sites.
Tirath Prasad SahuNaresh Kumar NagwaniShrish VermaPublished in: IEEE Access (2016)
Keyphrases
- mixture model
- automatic identification
- em algorithm
- community question answering
- gaussian mixture model
- generative model
- probabilistic model
- density estimation
- expectation maximization
- probability density function
- model selection
- mixture modeling
- unsupervised learning
- user interaction
- user generated content
- language model
- user satisfaction
- machine learning
- probabilistic mixture model
- information seeking
- hough transform
- user profiles
- co occurrence
- recommender systems
- decision trees