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Ben Jacobsen

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Hi there! I'm a fifth-year PhD student in Computer Science at UW-Madison, where I have the honor of being advised by Kassem Fawaz as a part of the Wisconsin Privacy and Security Group. Prior to coming to Madison, I spent two years at Central New Mexico Community College and then transferred to the University of Arizona, where I majored in Mathematics.

My research focuses on differential privacy and learning theory, with an emphasis on problems that are relevant to real-world systems for prediction and resource allocation. Most recently, I've spent a lot of time thinking about problems with a sequential flavor, like online learning and adaptive data analysis.

Most of my actual research is fairly math-heavy, but I'm quite passionate about privacy from a social and philosophical perspective as well. So, for instance, I'm a regular member of the Ethics, Values, Information, and Law (EVIL) Reading Group, I have a PhD minor in Science and Technology Studies, and I've led several discussions on topics like Contextual Integrity and legal risks in security research for other graduates in the security and privacy group at Madison. I have longstanding ambitions to bring more of that interdisciplinary background into my research proper, so if you're reading this and you also think that doing a deep dive on the historical development and philosophical implications of differential privacy sounds like a lot of fun, you should definitely shoot me an email!

Outside of research, I play jazz piano, go rock climbing, and run a regular Dungeons & Dragons game for my friends. I'm also very passionate about teaching; I spent a semester teaching Java at a local community college as part of the very first cohort of Madison College Teaching Fellows, and as of Spring 2026, I'm the instructor of record for UW-Madison's CS642: Introduction to Information Security.