Introducing AutoencodersArchitecture of the AutoencoderReducing the Input Dimensionality with an AutoencoderDetecting Anomalies Using an AutoencoderWhy is Detecting Fraud so Hard?Building and Training the AutoencoderData Access and Data PreparationBuilding the AutoencoderTraining and Testing the AutoencoderDetecting Fraudulent TransactionsOptimizing the Autoencoder StrategyOptimizing Threshold Threshold is defined on a separate subset of data, called the optimization set. There are two options here:Deploying the Fraud DetectorReading Network, New Transactions, and Normalization ParametersApplying the Fraud DetectorTaking ActionsSummaryQuestions and Exercises