Comment by rramadass

You might want to checkout the books by Timothy Masters - http://www.timothymasters.info/

I had come across his books when searching for ML books in C++. He has applied ML/Statistical/Deep Learning/etc. techniques to Market Trading Systems and other domains. Generally all his books contain implementations in C/C++.

The reviews of his books on Amazon gives you confidence that he really knows his stuff from a practical/industry pov.