Adaptive Anomaly Detection in Transaction-Oriented Networks
Journal of Network and Systems Management
Architecture of Generalized Network Service Anomaly and Fault Thresholds
MMNS '01 Proceedings of the 4th IFIP/IEEE International Conference on Management of Multimedia Networks and Services: Management of Multimedia on the Internet
Architecture Selection in NLDA Networks
ICANN '01 Proceedings of the International Conference on Artificial Neural Networks
A Neural Classifier with Fraud Density Map for Effective Credit Card Fraud Detection
IDEAL '02 Proceedings of the Third International Conference on Intelligent Data Engineering and Automated Learning
Natural Gradient Learning in NLDA Networks
IWANN '01 Proceedings of the 6th International Work-Conference on Artificial and Natural Neural Networks: Connectionist Models of Neurons, Learning Processes and Artificial Intelligence-Part I
Retrieval strategies for case-based reasoning: a categorised bibliography
The Knowledge Engineering Review
Transaction aggregation as a strategy for credit card fraud detection
Data Mining and Knowledge Discovery
ACM Computing Surveys (CSUR)
An adaptive automated method for identity verification with performance guarantees
Electronic Commerce Research
Comprehensive study on methods of fraud prevention in credit card e-payment system
Proceedings of the 11th International Conference on Information Integration and Web-based Applications & Services
Apply robust segmentation to the service industry using kernel induced fuzzy clustering techniques
Expert Systems with Applications: An International Journal
A hybrid fraud scoring and spike detection technique in streaming data
Intelligent Data Analysis
Data mining for credit card fraud: A comparative study
Decision Support Systems
Learning of neural networks for fraud detection based on a partial area under curve
ISNN'05 Proceedings of the Second international conference on Advances in neural networks - Volume Part II
Parallel perceptrons, activation margins and imbalanced training set pruning
IbPRIA'05 Proceedings of the Second Iberian conference on Pattern Recognition and Image Analysis - Volume Part II
A cost-sensitive decision tree approach for fraud detection
Expert Systems with Applications: An International Journal
Topological pattern discovery and feature extraction for fraudulent financial reporting
Expert Systems with Applications: An International Journal
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This paper presents an online system for fraud detection of credit card operations based on a neural classifier. Since it is installed in a transactional hub for operation distribution, and not on a card-issuing institution, it acts solely on the information of the operation to be rated and of its immediate previous history, and not on historic databases of past cardholder activities. Among the main characteristics of credit card traffic are the great imbalance between proper and fraudulent operations, and a great degree of mixing between both. To ensure proper model construction, a nonlinear version of Fisher's discriminant analysis, which adequately separates a good proportion of fraudulent operations away from other closer to normal traffic, has been used. The system is fully operational and currently handles more than 12 million operations per year with very satisfactory results