Analytical Study of Ai-Driven Risk-Aware Caching Strategies in Real Time Fraud Detection Systems Under Concept Drift
DOI:
https://doi.org/10.64917/feaiml/Volume02Issue10-03Keywords:
Dynamic Risk-Aware Caching, Adaptive Cache Management, Real-Time Fraud Detection, Concept Drift Adaptation, Reinforcement Learning, Fraud Risk Volatility, Cache Invalidation, Low-Latency AnalyticsAbstract
Real-time fraud detection systems are facing increasing challenges driven by rapid growth of digital transactions, requiring accurate and timely detection of fraudulent events without false positives. While traditional caching mechanisms can be used to reduce data access latency and Streamline data retrieval process, they are unable to maintain a rapid adaptation to changing data and fraud patterns. This frequently leads to latency bottlenecks and stale fraud indicators, negatively affecting the accuracy of detection under concept drift, where fraud patterns shift unpredictably over time.
To address these limitations, this paper presents a novel Dynamic Risk-Aware Adaptive Caching framework, which integrates dynamic signals and learning techniques to tune caching in fraud detection engines. The given approach dynamically adapts cache invalidation and time-to-live (TTL) policies to changing fraud risk volatility, transaction frequency and model confidence to ensure low-latency responsiveness and high fraud detection accuracy.
To capture the dynamics of real-world fraud, we use a simulated transaction data and compare various caching mechanisms, such as static and adaptive caching strategies. Empirical tests show that our dynamic caching strategy is able to achieve improved hit rates, and better detection accuracy than the conventional static caching. Additionally, the system effectively adapts in responding dynamically to a concept drift in ensuring robustness under evolving fraud patterns.
The paper advances the field by bridging caching optimization and fraud detection with concept drift, creating a scalable, secure, and explainable fraud detection framework that can be used in modern financial systems. Future research directions include the usage of federated learning and real-world testing which further improve adaptive caching efficacy in live fraud detection operations.
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