Timothy Masters received a PhD in mathematical statistics with a specialization in numerical computing. Since then he has continuously worked as an independent consultant for government and industry. His early research involved automated feature detection in high-altitude photographs while he developed applications for flood and drought prediction, detection of hidden missile silos, and identification of threatening military vehicles. Later he worked with medical researchers in the development of computer algorithms for distinguishing between benign and malignant cells in needle biopsies. For the last twenty years he has focused primarily on methods for evaluating automated financial market trading systems. He has authored many books on applications of predictive modeling: Practical Neural Network Recipes in C++ (Academic Press, 1993) Signal and Image Processing with Neural Networks (Wiley, 1994) Advanced Algorithms for Neural Networks (Wiley, 1995) Neural, Novel, and Hybrid Algorithms for Time Series Prediction (Wiley, 1995) Assessing and Improving Prediction and Classification (CreateSpace, 2013, Apress, 2018) Deep Belief Nets in C++ and CUDA C: Vol I: Restricted Boltzmann Machines and Supervised Feedforward Networks (CreateSpace, 2015, Apress, 2018) Deep Belief Nets in C++ and CUDA C: Vol II: Autoencoding in the Complex Domain (CreateSpace, 2015, Apress, 2018) Deep Belief Nets in C++ and CUDA C: Vol III: Convolutional Nets (CreateSpace, 2016, Apress, 2018) Data Mining Algorithms in C++ (CreateSpace, 2016, Apress, 2018) Testing and Tuning Market Trading Systems (CreateSpace, 2018)