
Gregory Druck, PhD, is Chief AI Officer at Graphite, where he leads scientists and engineers building AI tools for organic growth. He earned his doctorate at UMass Amherst with Andrew McCallum, then held research roles at Yahoo and Yummly before bringing academic NLP habits into agency measurement systems for generative visibility.
A PhD at UMass Amherst
Druck completed a Ph.D. in computer science at the University of Massachusetts Amherst in 2011 under Andrew McCallum, a major figure in information extraction and machine learning. His thesis work on Generalized Expectation criteria and lightly supervised learning focused on how to train NLP models when labeled data is scarce, including techniques for labeling features rather than only instances.
Yahoo and Yummly
After the Ph.D. Druck held research roles at Yahoo and at Yummly, applying machine learning to large content and recommendation problems.
His personal site and CV lists his publications.
Chief AI Officer at Graphite
At Graphite Druck leads the scientists and engineers building AI tools for organic growth, working beside founder CEO Ethan Smith. His writing for Graphite appears on his Five Percent author page.