Observation Probability in Hidden Markov Model for Credit Card Fraudulent Detection System.
Ashphak KhanTejpal SinghAmit SinhalPublished in: SocProS (2012)
Keyphrases
- hidden markov models
- credit card
- fraud detection
- payment scheme
- speech recognition
- sequential data
- financial data
- detection algorithm
- conditional random fields
- markov models
- hidden state
- outlier detection
- sensitive information
- viterbi algorithm
- markov model
- probability distribution
- multiple criteria linear programming
- data sets
- continuous hidden markov models
- data mining techniques
- nearest neighbor
- multi class
- active learning
- pairwise