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DTSTART:20240310T100000
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DTSTART:20241103T090000
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DTSTART;TZID=America/Los_Angeles:20240315T133000
DTEND;TZID=America/Los_Angeles:20240315T143000
DTSTAMP:20260425T133815
CREATED:20240318T212943Z
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UID:2888-1710509400-1710513000@ifds.info
SUMMARY:Optimized Decision Making via Active Learning of Stochastic Hamiltonians
DESCRIPTION:Speaker: Prof. Chandrajit Bajaj \, UT Austin \nAbstract: 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.
URL:https://ifds.info/event/optimized-decision-making-via-active-learning-of-stochastic-hamiltonians/
LOCATION:CSE (Allen) 403
CATEGORIES:MLOpt@UWash
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