IFDS

SILO: Unsupervised Learning: Validation beyond Visualization
2024-03-13 12:30 (America/Chicago) | Researchers’ Link, 330 N Orchard St, Madison, WI, 53715, United States
Marina Meila, UWash

Optimized Decision Making via Active Learning of Stochastic Hamiltonians
2024-03-15 13:30 - 14:30 (America/Los_Angeles) | CSE (Allen) 403
Speaker: Prof. Chandrajit Bajaj , UT Austin
Abstract: A Hamiltonian represents the energy of a dynamical system in phase space with coordinates of position and momentum. The Hamilton’s equations of motion are obtainable as coupled symplectic differential equations. In this talk I shall show how optimized decision making (action sequences) can be obtained via a reinforcement learning problem wherein the agent interacts with the unknown environment to simultaneously learn a Hamiltonian surrogate and the optimal action sequences using Hamilton dynamics, by invoking the Pontryagin Maximum Principle. We use optimal control theory to define an optimal control gradient flow, which guides the reinforcement learning process of the agent to progressively optimize the Hamiltonian while simultaneously converging to the optimal action sequence. Extensions to stochastic Hamiltonians leading to stochastic action sequences and the free-energy principle shall also be discussed. This is joint work with Taemin Heo, Minh Nguyen.

IFDS Ideas Forum Double Header
2024-03-18 12:30 - 13:30 (America/Chicago) | WID 1145, 330 N Orchard Street, Madison, WI, 53715, United States
Karan Srivastava

Harit Vishwakarma: “Confidence functions for auto-labeling”

SILO:
2024-03-20 12:30 - 13:30 (America/Chicago) | Orchard View Room, 330 N. Orchard Street, 3rd Floor NE, Madison, Wisconsin, 53715, United States
Chao Gao, U Chicago

SILO:
2024-04-03 12:30 (America/Chicago) | Orchard View Room, 330 N. Orchard Street, 3rd Floor NE, Madison, Wisconsin, 53715, United States
Devavrat Shah, MIT

SILO:
2024-04-10 12:30 (America/Chicago) | Orchard View Room, 330 N. Orchard Street, 3rd Floor NE, Madison, Wisconsin, 53715, United States
CMU, Weina Wang

SILO:
2024-04-17 12:30 - 13:30 (America/Chicago) | Orchard View Room, 330 N. Orchard Street, 3rd Floor NE, Madison, Wisconsin, 53715, United States
Zachary Lubberts, UVA

SILO: Generalized Tensor Decompositions: Algorithms and Applications
2024-04-24 12:30 - 13:30 (America/Chicago) | Orchard View Room, 330 N. Orchard Street, 3rd Floor NE, Madison, Wisconsin, 53715, United States
David Hong, UDel

SILO:
2024-05-01 12:30 - 13:30 (America/Chicago) | Orchard View Room, 330 N. Orchard Street, 3rd Floor NE, Madison, Wisconsin, 53715, United States
Sam Hopkins, MIT

SILO:
2024-05-08 12:30 (America/Chicago) | Orchard View Room, 330 N. Orchard Street, 3rd Floor NE, Madison, Wisconsin, 53715, United States
Max Raginsky, UIUC
