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fraud detection

16 items

RESEARCHarXiv CS.LG·4/17/2026

Shapley Value-Guided Adaptive Ensemble Learning for Explainable Financial Fraud Detection with U.S. Regulatory Compliance Validation

This research addresses the challenge of explainability in AI for financial fraud detection, crucial for U.S. regulatory compliance. It introduces the SHAP-Guided Adaptive Ensemble (SGAE) method, which dynamically adjusts ensemble weights based on SHAP attribution agreement, achieving high performance and transparency.

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RESEARCHarXiv CS.LG·4/16/2026

Synthetic Tabular Generators Fail to Preserve Behavioral Fraud Patterns: A Benchmark on Temporal, Velocity, and Multi-Account Signals

This research introduces "behavioral fidelity" as a new evaluation dimension for synthetic tabular data, measuring whether generated data preserves temporal and structural behavioral patterns critical for fraud detection. It proves that dominant row-independent generators are inherently incapable of reproducing complex multi-account fraud graph motifs.

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RESEARCHarXiv CS.LG·17d ago

Temporal Contrastive Transformer for Financial Crime Detection: Self-Supervised Sequence Embeddings via Predictive Contrastive Coding

The Temporal Contrastive Transformer (TCT) is a new representation learning framework designed for financial transaction sequences to detect fraud. It uses self-supervised contrastive learning to generate embeddings that capture temporal behavioral patterns, showing meaningful predictive performance, especially when combined with domain-engineered features.

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RESEARCHarXiv CS.AI·27d ago

Rethinking LLMOps for Fraud and AML: Building a Compliance-Grade LLM Serving Stack

This research paper proposes a specialized LLMOps stack designed for fraud detection and anti-money laundering (AML) compliance, recognizing their distinct serving requirements compared to generic chat workloads. The stack integrates various advanced techniques to efficiently handle evidence-rich, schema-constrained prompts and ensure compliance-grade performance with self-hosted open-weight LLMs.

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