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Whitepaper · Banking & AML

AI fraud detection for financial institutions

Rule-based fraud systems generate floods of false positives and cannot adapt to new typologies of financial crime. This whitepaper explains the architecture behind ZJDI’s AI fraud and anti-money-laundering engine, built for a Zimbabwean financial institution.

Whitepaper

PDF · 3 pages · on request

Reading time
6 minute read
Written for
For heads of compliance and risk, fraud and aml analysts, bank ctos and data teams

Key takeaways

  1. 01

    From rules to risk scores

    Gradient-boosted models such as CatBoost and XGBoost find non-linear patterns in tabular financial data that static rules miss.

  2. 02

    Reading the narrative

    NLP on transaction narratives and watchlists adds signal that numbers alone cannot capture.

  3. 03

    Millisecond integration

    FastAPI endpoints connected to IBM DB2 and MySQL score each transaction without slowing the payment flow.

  4. 04

    Explainable by design

    SHAP attributions give every flag a human-readable reason that can be defended to auditors.

  5. 05

    Models that stay sharp

    Drift monitoring and scheduled retraining keep accuracy from decaying as behaviour changes.

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