Summary
In this chapter, we introduced DL as a form of representation learning that extracts hierarchical features from high-dimensional, unstructured data. We saw how to design, train, and regularize feedforward neural networks using NumPy. We demonstrated how to use the popular DL libraries PyTorch and TensorFlow that are suitable for use cases from rapid prototyping to production deployments.
Most importantly, we designed and tuned an NN using TensorFlow and were able to generate tradeable signals that delivered attractive returns during both the in-sample and out-of-sample periods.
In the next chapter, we will explore CNNs, which are particularly well suited for image data but are also well-suited for sequential data.