Family
LightGBM (cross-model enriched)
in-developmentApache 2.0tabularb2b-facing
Fraud Detection.
Supervised fraud classifier (LightGBM, isotonic-calibrated). PR-trio (2026-05-02) un-deprecated the PR #14 stub by adding the missing trainer + consumer.
Foundation · LightGBM (cross-model enriched)
What it does
The honest description.
Supervised fraud classifier (LightGBM, isotonic-calibrated). PR-trio (2026-05-02) un-deprecated the PR #14 stub by adding the missing trainer + consumer.
Architecture
How it works.
Transaction context (amount, time_of_day, merchant_category_score, payment_method_score), user history (prior_fraud_count, days_since_account_open, is_new_payee), velocity (1h, 24h). Cross-model: cm_p2p_is_p2m, cm_anomaly_score, optional cm_forgery_score. P(fraud) ∈ [0, 1]. A rule-based heuristic score currently serves; the supervised LightGBM classifier (isotonic-calibrated, distinct from unsupervised anomaly_detector) is the intended target, not yet served — models:/fraud_detection/Production is absent by default.
Training data & drift
What it learned from, and how we watch it.
Source
Inputs: Transaction context (amount, time_of_day, merchant_category_score, payment_method_score), user history (prior_fraud_count, days_since_account_open, is_new_payee), velocity (1h, 24h). Cross-model: cm_p2p_is_p2m, cm_anomaly_score, optional cm_forgery_score.
Drift baseline · current quarter
Drift baseline not yet documented for this model.
What it's NOT
- PR-trio (2026-05-02): supervised counterpart to anomaly_detector.
- Falls back to rule-based heuristic when MLflow model not loaded.
Who calls this model
Across the house and the API.
Internal routes
No public routes documented yet.
Featured in
/features/b2b-api-sdksVersion history · immutable once published
Every release, traceable.
Data Mukodi holds about you is subject to DPDP §12 erasure (use /consent in the app), and any concern about this model can be raised via [email protected] under DPDP §13 grievance, or via /security.