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SUMMARY:Joscha Diehl (Universität Greifswald)
DTSTART:20200428T150000Z
DTEND:20200428T153000Z
DTSTAMP:20260423T024553Z
UID:NASO/16
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/NASO/16/">Ti
 me warping invariants and quasisymmetric functions</a>\nby Joscha Diehl (U
 niversität Greifswald) as part of Max Planck Institute nonlinear algebra 
 seminar online\n\n\nAbstract\nThe analysis of time series is a standard ta
 sk in data science. Usually\, as a first step\, features of a time series 
 must be extracted that characterize the series\, maybe modulo irrelevant (
 depending on the application) group actions on the original data. In this 
 talk I will discuss the action of time-warping: the features should be inv
 ariant to the speed at which the time-series is run through. This leads\, 
 as we show\, to quasisymmetric functions\, and I discuss their Hopf algebr
 aic setup.\n
LOCATION:https://researchseminars.org/talk/NASO/16/
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