Fig. 1From: Data mining application to healthcare fraud detection: a two-step unsupervised clustering method for outlier detection with administrative databasesProcess Flow. Schematic representation of the algorithm’s process flow. The first three grey boxes on the left represent the data sources. From HDC Dataset we derived the two additional datasets (Patients and Hospitals). Only Hospital Dataset enters Step 1, while all three of them are retrieved for Step 2Back to article page