JD Cloud Developers

Sep 8, 2025 · Artificial Intelligence

Turn a Generic LLM into an E‑Commerce Risk Detector with Prompt Engineering

In this detailed case study, a risk‑control algorithm engineer explains how he progressively refined prompts for a large language model—starting from a basic role‑playing instruction, adding business‑specific exemption rules, structuring input/output, and finally implementing a dual‑hypothesis decision framework—to transform the model into a reliable e‑commerce fraud detection expert.