My expertise and research includes machine learning, signal processing and data science with applications in digital advertising. I am the Director of the Signal Processing and Machine Learning master's program in the ECE department at the University of Wisconsin. Before that, I was a Director and Principal Data Scientist at Comscore where I lead a team of data scientists and sotware engineers. Before that, I was a post-doc and a PhD student, and before that, I was an engineer at Motorola. My research interests include:

• internet measurement and building enormous graphs (see internet device graphs, graphing by example, crumbling cookies -- which won best paper award at AdKDD 2019)
• more scholarly satisfying topics -
  • learning theory and adaptive sensing (see adaptive sensing and bandits - Lil'UCB)
  • information theory, optimization, signal processing (estimation via convex relaxations)
  • I'm very interested in building machine learning algorithms that are gracefully wrong, and correct in aggregate (see ad blockers)