Employing Kullback-Leibler divergence and Latent Dirichlet Allocation for fraud detection in telecommunications.
Dominik OlszewskiPublished in: Intell. Data Anal. (2012)
Keyphrases
- fraud detection
- kullback leibler divergence
- latent dirichlet allocation
- topic models
- mutual information
- generative model
- outlier detection
- probability density function
- cost sensitive
- information theoretic
- distance measure
- data mining techniques
- social network analysis
- data mining
- text mining
- probabilistic latent semantic analysis
- probabilistic model
- em algorithm
- dimensionality reduction
- co occurrence
- pairwise
- density estimation
- data streams
- support vector
- feature selection
- databases