Fraud, Trimmed and Tagged: How Dual-Granularity Prompts Sharpen LLMs for Graph Detection
TL;DR for operators Fraud teams already know the problem: the suspicious review, shop, seller, or account is rarely suspicious in isolation. The useful evidence is scattered across neighbours — same user, same product, same rating pattern, same time window, same commercial ecosystem. The less useful evidence is also scattered there. At scale, that second pile is larger. How inconvenient. ...