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DTSTART:20070311T020000
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DTSTAMP:20211102T144527
DTSTART;TZID=America/Detroit:20211109T113000
DTEND;TZID=America/Detroit:20211109T130000
SUMMARY:Workshop / Seminar:Complex System Virtual Seminar | Using Information Geometry to Find Simple Models of Complex Processes\"
DESCRIPTION:ZOOM MEETING\nhttps://umich.zoom.us/j/96616169868\nPasscode: CSCS\n\nABSTRACT: Effective theories play a fundamental role in how we reason about the world. Although real physical processes are very complicated\, useful models abstract away the irrelevant degrees of freedom to give parsimonious representations. I use information geometry to construct simplified models for many types of complex systems\, such as biology\, neuroscience\, statistical physics\, and complex engineered systems. I interpret a multi-parameter model as a manifold embedded in the space of all possible data\, with a metric induced by statistical distance. These manifolds are often bounded and very thin\, so they are well-approximated by a low-dimensional\, simple model. For many types of models\, there is a hierarchy of natural approximations that reside on the manifold's boundary. These approximations are not black-boxes. They remain expressed in terms of the relevant combinations of mechanistic parameters and reflect the physical principles on which the complicated model was built. They can also be constructed in a systematic way using computational differential geometry.
UID:88702-21656854@events.umich.edu
URL:https://events.umich.edu/event/88702
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Agent Based Modelling,Biosciences,Computational Modeling,Physics,research,Virtual
LOCATION:Off Campus Location
CONTACT:
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