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X-WR-CALNAME:Claremont Center for the Mathematical Sciences
X-ORIGINAL-URL:https://colleges.claremont.edu/ccms
X-WR-CALDESC:Events for Claremont Center for the Mathematical Sciences
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DTSTART;TZID=America/Los_Angeles:20260914T161500
DTEND;TZID=America/Los_Angeles:20260914T171500
DTSTAMP:20260910T052954Z
CREATED:20260910T052954Z
LAST-MODIFIED:20260910T052954Z
UID:10002252-1789402500-1789406100@colleges.claremont.edu
SUMMARY:Adaptive Experimental Design using Shrinkage Estimators (Evan Rosenman\, Claremont McKenna College)
DESCRIPTION:In multi-armed trials\, adaptive designs are a popular way to increase estimation efficiency or identify optimal treatments. Many recent papers have proposed adaptive methods for minimizing the error of unbiased estimators that consider each treatment arm in isolation. This approach may be inefficient\, because it fails to borrow shared information across the treatment arms.\nWe consider adaptivity in a sequential trial with K active treatments and a control\, and suggest the use of Stein-like shrinkage estimators to obtain the final causal estimates. These estimators share information\, yielding reductions in expected estimation error\, relative to estimating each causal effect in isolation. Moreover\, for a group of candidate estimators\, the expected error can be expressed as the expectation of ratios of Gaussian quadratic forms\, and can thus be computed efficiently. Hence\, we suggest a simple algorithm for sequential adaptivity: assign each new arrival to the arm that will minimize the estimated shrinker loss.\nThrough simulations\, we demonstrate that this approach reduces estimation error\, especially in the low signal-to-noise regime. We also characterize how our adaptive algorithm assigns treatments differently than would a classical Neyman allocation and suggest a method for constructing shorter confidence intervals at the conclusion of the trial.
URL:https://colleges.claremont.edu/ccms/event/adaptive-experimental-design-using-shrinkage-estimators-evan-rosenman-claremont-mckenna-college/
LOCATION:Emmy Noether Room\, Estella 1021\, Pomona College\,\, 610 N. College Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Applied Math Seminar
ORGANIZER;CN="Ami Radunskaya":MAILTO:aradunskaya@pomona.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260915T121500
DTEND;TZID=America/Los_Angeles:20260915T131000
DTSTAMP:20260907T173603Z
CREATED:20260830T212148Z
LAST-MODIFIED:20260907T173603Z
UID:10002233-1789474500-1789477800@colleges.claremont.edu
SUMMARY:Kloosterman sums and Bessel functions (Robert Cass\, CMC)
DESCRIPTION:Kloosterman sums are explicit exponential sums which occur in several contexts in number theory and arithmetic geometry. Bessel functions encode a great deal of representation-theoretic information about finite groups of Lie type\, but they are difficult to compute in general. In this talk\, we will carefully define these objects and describe a direct relationship between them. One of our main goals is to provide many explicit examples\, including ones for the exceptional groups E6 and E7.
URL:https://colleges.claremont.edu/ccms/event/antc-talk-robert-cass-cmc-3/
LOCATION:Estella 1021 (Emmy Noether Room)\, Pomona College\, Claremont\, CA\, 91711\, United States
CATEGORIES:Algebra / Number Theory / Combinatorics Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260916T161500
DTEND;TZID=America/Los_Angeles:20260916T171500
DTSTAMP:20260903T184702Z
CREATED:20260903T184702Z
LAST-MODIFIED:20260903T184702Z
UID:10002251-1789575300-1789578900@colleges.claremont.edu
SUMMARY:CCMS Colloquium — Dalena Vien (Bryn Mawr College)
DESCRIPTION:
URL:https://colleges.claremont.edu/ccms/event/ccms-colloquium-dalena-vien-bryn-mawr-college/
LOCATION:Burkle 16\, Claremont Graduate University\, 1021 N. Dartmouth Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Colloquium
ORGANIZER;CN="Qidi Peng":MAILTO:Qidi.Peng@cgu.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260921T161500
DTEND;TZID=America/Los_Angeles:20260921T171500
DTSTAMP:20260910T053358Z
CREATED:20260910T053358Z
LAST-MODIFIED:20260910T053358Z
UID:10002253-1790007300-1790010900@colleges.claremont.edu
SUMMARY:ODEs and number theory ? (Edray Goins\, Pomona College)
DESCRIPTION:TBA
URL:https://colleges.claremont.edu/ccms/event/odes-and-number-theory-edray-goins-pomona-college/
LOCATION:Emmy Noether Room\, Estella 1021\, Pomona College\,\, 610 N. College Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Applied Math Seminar
ORGANIZER;CN="Ami Radunskaya":MAILTO:aradunskaya@pomona.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260922T121500
DTEND;TZID=America/Los_Angeles:20260922T131000
DTSTAMP:20260830T220038Z
CREATED:20260830T220038Z
LAST-MODIFIED:20260830T220038Z
UID:10002234-1790079300-1790082600@colleges.claremont.edu
SUMMARY:ANTC talk (Lenny Fukshansky\, CMC)
DESCRIPTION:
URL:https://colleges.claremont.edu/ccms/event/antc-talk-lenny-fukshansky-cmc-2/
LOCATION:Estella 1021 (Emmy Noether Room)\, Pomona College\, Claremont\, CA\, 91711\, United States
CATEGORIES:Algebra / Number Theory / Combinatorics Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260923T161500
DTEND;TZID=America/Los_Angeles:20260923T171500
DTSTAMP:20260903T191154Z
CREATED:20260903T184446Z
LAST-MODIFIED:20260903T191154Z
UID:10002250-1790180100-1790183700@colleges.claremont.edu
SUMMARY:CCMS Colloquium — Kimberly Ayers (CSU San Marcos)
DESCRIPTION:
URL:https://colleges.claremont.edu/ccms/event/ccms-colloquium-kimberly-ayers-csusm/
LOCATION:Burkle 16\, Claremont Graduate University\, 1021 N. Dartmouth Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Colloquium
ORGANIZER;CN="Qidi Peng":MAILTO:Qidi.Peng@cgu.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260928T161500
DTEND;TZID=America/Los_Angeles:20260928T171500
DTSTAMP:20260910T053557Z
CREATED:20260910T053557Z
LAST-MODIFIED:20260910T053557Z
UID:10002254-1790612100-1790615700@colleges.claremont.edu
SUMMARY:Brain Imaging and Mathematical Modeling of Alzheimer's Disease (Peter Hinow\, U. Wisconsin\, Milwaukee)
DESCRIPTION:TBA
URL:https://colleges.claremont.edu/ccms/event/brain-imaging-and-mathematical-modeling-of-alzheimers-disease-peter-hinow-u-wisconsin-milwaukee/
LOCATION:Emmy Noether Room\, Estella 1021\, Pomona College\,\, 610 N. College Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Applied Math Seminar
ORGANIZER;CN="Ami Radunskaya":MAILTO:aradunskaya@pomona.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260929T121500
DTEND;TZID=America/Los_Angeles:20260929T131000
DTSTAMP:20260903T022824Z
CREATED:20260903T022824Z
LAST-MODIFIED:20260903T022824Z
UID:10002242-1790684100-1790687400@colleges.claremont.edu
SUMMARY:ANTC talk (Omid Khormali\, HMC)
DESCRIPTION:
URL:https://colleges.claremont.edu/ccms/event/antc-talk-omid-khormali-hmc/
LOCATION:Estella 1021 (Emmy Noether Room)\, Pomona College\, Claremont\, CA\, 91711\, United States
CATEGORIES:Algebra / Number Theory / Combinatorics Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260930T161500
DTEND;TZID=America/Los_Angeles:20260930T171500
DTSTAMP:20260903T024139Z
CREATED:20260903T021345Z
LAST-MODIFIED:20260903T024139Z
UID:10002239-1790784900-1790788500@colleges.claremont.edu
SUMMARY:CCMS Colloquium — Christine Lee (Texas State University)
DESCRIPTION:
URL:https://colleges.claremont.edu/ccms/event/ccms-colloquium-christine-lee-texas-state-university/
LOCATION:Burkle 16\, Claremont Graduate University\, 1021 N. Dartmouth Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Colloquium
ORGANIZER;CN="Qidi Peng":MAILTO:Qidi.Peng@cgu.edu
END:VEVENT
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