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DTSTART:20250309T070000
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DTSTART;TZID=America/Toronto:20250508T140000
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URL:https://uwaterloo.ca/combinatorics-and-optimization/events/algebraic-an
 d-enumerative-combinatorics-seminar-maximilian
SUMMARY:Algebraic and enumerative combinatorics seminar-Maximilian Wiesmann
CLASS:PUBLIC
DESCRIPTION:TITLE:Arrangements and Likelihood\n\nSpeaker\n Maximilian Wiesm
 ann\n\nAffiliation\n Max Planck\n\nLocation\n MC 5479\n\nABSTRACT: In this
  talk\, we establish connections between hypersurface\narrangements and li
 kelihood geometry. The central object is the\nlikelihood correspondence wh
 ich captures the dependence between data\nand critical points of the likel
 ihood function of a statistical model\nparametrized by the polynomials def
 ining the arrangement. In particle\nphysics\, this same object is known as
  the scattering correspondence.\nThe connection to hypersurface arrangemen
 ts leads to a new description\nof the prime ideal of the likelihood corres
 pondence\, which is often\ncomputationally advantageous. This description 
 is based on the Rees\nalgebra of the likelihood module of the arrangement\
 , a module closely\nrelated to the module of logarithmic derivations. We p
 resent results\nfor generic and graphic arrangements.\n\nTHERE WILL BE A P
 RE-SEMINAR PRESENTING RELEVANT BACKGROUND AT THE\nBEGINNING GRADUATE LEVEL
  STARTING AT 1PM\,
DTSTAMP:20260403T082732Z
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