Graph for fraud detection

摘要

Grab has grown rapidly in the past few years. It has expanded its business from ride hailing to food and grocery delivery, financial services, and more. Fraud detection is challenging in Grab, because new fraud patterns always arise whenever we introduce a new business product. We cannot afford to develop a new model whenever a new fraud pattern appears as it is time consuming and introduces a cold start problem, that is no protection at the early stage. We need a general fraud detection framework to better protect Grab from various unknown fraud risks.

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