Ben Recht and I organized another great edition of Hardcore Data Science in San Jose today. As I was preparing to host the track, I had an inkling we had another outstanding sequence of presentations. The day covered hot topics like deep neural networks, practical advice on how to do data science & machine learning at scale, feature engineering, graphs, anomaly detected, structured data extraction, and many other topics at the heart of A.I. From the very first talk, sessions were well attended, the audience was attentive, and the energy in the room was high – and it remained that way throughout the day. A summary can be found below. New tools for reliable data science: @mrtz opens Hardcore Data Science #stratahadoop San Jose (overfitting, holdout) pic.twitter.com/Jr6HtjWLD5