Fraud Detection and Management(3) Detecting inappropriate medical treatment Australian health insurance commission identifies that in many cases blanket screening tests were requested(save Australian $1m/yr) o Detecting telephone fraud Telephone call model: destination of the call, duration time of day or week. Analyze patterns that deviate from an expected norm British Telecom identified discrete groups of callers with frequent intra-group calls, especially mobile phones, and broke a multimillion dollar fraud ◆ Retail Analysts estimate that 38% of retail shrink is due to dishonest employees 2222 Fraud Detection and Management (3) Detecting inappropriate medical treatment ◼ Australian Health Insurance Commission identifies that in many cases blanket screening tests were requested (save Australian $1m/yr). Detecting telephone fraud ◼ Telephone call model: destination of the call, duration, time of day or week. Analyze patterns that deviate from an expected norm. ◼ British Telecom identified discrete groups of callers with frequent intra-group calls, especially mobile phones, and broke a multimillion dollar fraud. Retail ◼ Analysts estimate that 38% of retail shrink is due to dishonest employees