Employing Latent Dirichlet Allocation for fraud detection in telecommunications.
Dongshan XingMark A. GirolamiPublished in: Pattern Recognit. Lett. (2007)
Keyphrases
- fraud detection
- latent dirichlet allocation
- topic models
- outlier detection
- cost sensitive
- generative model
- topic modeling
- lda model
- data mining techniques
- data mining
- social network analysis
- latent topics
- variational bayesian inference
- text mining
- gibbs sampling
- intrusion detection
- probabilistic topic models
- data sets
- multi class
- em algorithm
- maximum likelihood
- image classification
- online auctions
- metadata