Big Data in Finance II builds on and complements insights from Big Data in Finance I. The module will focus on three key techniques in Big Data analysis and machine learning, and their applications to finance. First, we explore unsupervised machine learning models (e.g. clustering algorithms) and their applications to recommendation algorithms in finance. Second, expanding the introductory material on neural networks in Big Data in Finance I, the module will develop this material further to cover Deep Learning techniques, which will then, as in Big Data in Finance I, be applied to credit scoring and/or portfolio choice problems. Third, the module will introduce and discuss reinforcement learning models, with potential applications to portfolio selection and trading strategies.