Nicolò Cesa-Bianchi
Professor at the University of Milan (Università degli Studi di Milano)
IAS SEMINAR #09/2026
Turin / OGR / Sala Mezzanino / July 15, 2026 / 04:00 – 06:00 pm CEST
Sequential Decision-Making: from Observations to Optimal Decisions
EVENT&WEBINAR
While machine learning is classically linked to statistical analysis, the paradigm of online learning provides an alternative approach where models are sequentially trained on data streams and fast learning rates are obtained without relying on statistical assumptions. Besides creating learning algorithms that are robust against arbitrary data sources, online learning is a natural framework for the study of settings where the actions of the decision maker actively shape the feedback received from the environment. This adds a new dimension to the design learning algorithms; namely, identifying the best possible learning curve for a given feedback structure. In this talk, we will describe the core algorithmic toolkit of modern online learning and establish rigorous mathematical guarantees for their behavior. Finally, we will explore how these sequential tools bridge the gap to broader domains, expanding our ability to move from observations to optimal decisions.
NICOLÒ CESA-BIANCHI
Nicolò Cesa-Bianchi is professor of Computer Science at Università degli Studi di Milano. His main research interests are the design and analysis of algorithms for machine learning and sequential decision-making. He is co-author of the monographs “Prediction, Learning, and Games” and “Regret Analysis of Stochastic and Nonstochastic Multi-armed Bandit Problems”. He served as President of the Association for Computational Learning and co-chaired the program committees of some of the most important machine learning conferences, including NeurIPS and COLT. He is the recipient of a Google Research Award, a Xerox Foundation Award, a Criteo Faculty Award, a Google Focused Award, an IBM Research Award, and the FOCS Test-of-Time Award. He is ELLIS Fellow, member of the ELLIS board, and co-director of the ELLIS program on Interactive Learning and Interventional Representations. He is member of the Italian Academy of Sciences.
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