Machine Learning for Signal Processing: Data Science, Algorithms, and Computational Statistics: Max A. Little: 9780198714934: Amazon.com: Books

This book provides an excellent pathway for gaining first-class expertise in machine learning. It provides both the technical background that explains why certain approaches, but not others, are best practice in real world problems, and a framework for how to think about and approach new problems. I highly recommend it for people with a signal processing background who are seeking to become an expert in machine learning.