Classification - Making Data Mistakes

What is precision vs recall, and why should I care?

What do these tasks all have in common? Looking at an X-ray and deciding whether someone’s leg is brokenScreening a CV for suitability for a job postIdentifying faces of terrorists in a crowdThey are all examples of classification tasks, where we need to make a binary yes/no decision.

Data Science

Will data scientists become obsolete in the next 10 years?

Will tech companies still need data scientists, or are they destined to become just another blip in the history books – disappearing from the world like film projectionists and bowling alley pinsetters before them?

Data Science

How to build a model that performs at chance

I’m going to tell you about a horrible screwup. Not my first and not my last, but a happy one, because although it was excruciating it was also instructive.