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DTSTART;TZID=America/Los_Angeles:20250428T161500
DTEND;TZID=America/Los_Angeles:20250428T171500
DTSTAMP:20260427T100151
CREATED:20250426T011634Z
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SUMMARY:Applied Math Seminar: Alejandra Castillo (Pomona College)
DESCRIPTION:Title:    Randomized Kaczmarz Methods for Corrupted Tensor Linear Systems \nAbstract: Recovering tensor-valued signals from corrupted measurements is a central problem in various applications such as hyperspectral image reconstruction and medical imaging. This talk considers tensor linear systems of the form AX = B\, that contain observations potentially affected by sparse\, large-magnitude corruptions.  A quantile-based randomized Kaczmarz algorithm\, called quantile tensor randomized Kaczmarz (QTRK)\, is discussed to address this challenge. By integrating quantile statistics into the iterative update process\, QTRK improves robustness against adversarial errors. A variant selectively omits unreliable measurements to enhance stability further.
URL:https://colleges.claremont.edu/ccms/event/applied-math-seminar-alejandra-castillo-pomona-college/
LOCATION:Emmy Noether Room\, Estella 1021\, Pomona College\,\, 610 N. College Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Applied Math Seminar
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DTSTART;TZID=America/Los_Angeles:20250429T150000
DTEND;TZID=America/Los_Angeles:20250429T160000
DTSTAMP:20260427T100151
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SUMMARY:Claremont Topology Seminar: David Bachman (Pitzer College)
DESCRIPTION:We especially welcome all undergraduates and graduate students to attend topology seminar! \nSpeaker: David Bachman (Pitzer College) \nTitle: Learning optimal knot projections \nAbstract: We use techniques from Reinforcement Learning to find knot projections which minimize crossing number.
URL:https://colleges.claremont.edu/ccms/event/claremont-topology-seminar-david-bachman-pitzer-college/
LOCATION:Estella 2099\, Pomona College\, 610 N. College Ave.\, Claremont\, CA\, United States
CATEGORIES:Topology Seminar
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DTSTART;TZID=America/Los_Angeles:20250430T161500
DTEND;TZID=America/Los_Angeles:20250430T173000
DTSTAMP:20260427T100151
CREATED:20250131T235446Z
LAST-MODIFIED:20250428T233421Z
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SUMMARY:CCMS Colloquium presents the Second Barbara Beechler Talk: Deanna Needell (UCLA)
DESCRIPTION:CCMS Colloquium invites you to the Second Barbara Beechler Lecture by Professor Deanna Needell\, Professor of Mathematics\, Dunn Family Endowed Chair in Data Theory\nExecutive Director\, Institute for Digital Research and Education (IDRE) at UCLA. \nTitle: Fairness and Foundations in Machine Learning \nAbstract: In this talk\, we will address areas of recent work centered around the themes of fairness and foundations in machine learning as well as highlight the challenges in this area. We will discuss recent results involving linear algebraic tools for learning\, such as methods in non-negative matrix factorization that include tailored approaches for fairness. We will showcase our approach as well as practical applications of those methods.  Then\, we will discuss new foundational results that theoretically justify phenomena like benign overfitting in neural networks.  Throughout the talk\, we will include example applications from collaborations with community partners\, using machine learning to help organizations with fairness and justice goals. This talk includes work joint with Erin George\, Kedar Karhadkar\, Lara Kassab\, and Guido Montufar. \nSpeaker Bio: Deanna Needell earned her PhD from UC Davis before working as a postdoctoral fellow at Stanford University. She is currently a full professor of mathematics at UCLA\, the Dunn Family Endowed Chair in Data Theory\, and the Executive Director for UCLA’s Institute for Digital Research and Education. She has earned many awards including the Alfred P. Sloan fellowship\, an NSF CAREER and other awards\, the IMA prize in Applied Mathematics\, is a 2022 American Mathematical Society (AMS) Fellow and a 2024 Society for industrial and applied mathematics (SIAM) Fellow. She has been a research professor fellow at several top research institutes including the SLMath (formerly MSRI) and Simons Institute in Berkeley. She also serves as associate editor for several journals including Linear Algebra and its Applications and the SIAM Journal on Imaging Sciences\, as well as on the organizing committee for SIAM sessions and the Association for Women in Mathematics. \n 
URL:https://colleges.claremont.edu/ccms/event/ccms-colloquium-second-barbara-beechler-talk/
LOCATION:Argue Auditorium\, Pomona College\, 610 N. College Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Colloquium
ORGANIZER;CN="Bahar Acu":MAILTO:Bahar_Acu@pitzer.edu
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