Обнаружение fraud rings: graph analysis для связанных claims

Ситуация: Security team подозревает fraud rings — coordinated false claims. Manual review не успевает. Нужен framework.

КАСКО/OSAGO. Fraud signals: same workshop, same accident location, claim amount near threshold.

Доступные данные

• claims: id, policy_id, occurred_at, amount, workshop_id, location
• policies: id, owner, vehicle_id
• workshops: id, region, license_at
• investigations: claim_id, outcome (confirmed_fraud, cleared, pending)

Задачи

• Identify graph structure: claims connected by shared entities.
• Suspicious patterns: workshops with disproportionate volume.
• Risk scoring: claims by aggregate ring signals.
• Triage priority: highest-risk claims first.

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