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Chauvenet Hall

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1015 14th St.
Golden, CO 80401 United States

August 2017

Applied Mathematics and Statistics Colloquium: Evidence accumulation in changing environments: Neurons, organisms and groups

August 25, 2017 @ 3:00 pm - 5:00 pm
Chauvenet Hall, 1015 14th St.
Golden, CO 80401 United States
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Dr. Zachary Kilpatrick (CU-Boulder) will present "Evidence accumulation in changing environments: Neurons, organisms and groups To make decisions a constantly changing world, organisms must account for environmental volatility and appropriately discount old information when making decisions based on such accumulated evidence. We introduce Bayesian inference models of decision making, and derive an ideal observer model for inferring the present state of the environment along with its rate of change. Moment closure then allows us to obtain a low-dimensional system that…

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September 2017

Applied Mathematics and Statistics Distinguished Seminar: Large and non-stationary spatial fields: Quantifying uncertainty in the pattern scaling of climate models

September 19, 2017 @ 3:00 pm - 4:00 pm
Chauvenet Hall, 1015 14th St.
Golden, CO 80401 United States
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Dr. Douglas Nychka, National Center for Atmospheric Research Chauvenet Hall 143 This work is a substantive application of data science to the analysis of climate model experiments. Pattern scaling has proved to be a useful way to extend and interpret Earth system model (i.e. climate) simulations. In the simplest case the response of local temperatures is assumed to be a linear function of the global temperature. This relationship makes it possible to consider many different scenarios of warming by using…

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Computational STEM Seminar: An Illustration of Adiabatic Quantum Computation: Solution of the Knapsack Problem

September 20, 2017 @ 2:00 pm - 3:00 pm
Chauvenet Hall, 1015 14th St.
Golden, CO 80401 United States
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Dr. Mark Coffey, Department of Physics, Colorado School of Mines Chauvenet Hall 156 The knapsack problem is one of the standard and important difficult challenges for computer science, having broad applications in financial transactions and packing and stock-cutting contexts. As an optimization problem, the main idea is to maximize benefit (profit) subject to weight (cost) constraints. Moreover, solutions of this problem may serve as a facilitator for resolving more complicated problems, including scheduling. This presentation reviews this problem, and briefly…

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Applied Mathematics and Statistics Colloquium: A General Framework for Vecchia Approximations of Gaussian Processes

September 22, 2017 @ 3:00 pm - 4:00 pm
Chauvenet Hall, 1015 14th St.
Golden, CO 80401 United States
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Dr. Joe Guinness, North Carolina State University Chauvenet Hall 143 Gaussian processes (GPs) are commonly used as models for functions, time series, and spatial fields, but they are computationally infeasible for large datasets. Focusing on the typical setting of modeling observations as a GP plus an additive noise term, we propose a generalization of the Vecchia (1988) approach as a framework for GP approximations. We show that our general Vecchia approach contains many popular existing GP approximations as special cases,…

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Computational STEM Seminar: Protecting User’s Security and Privacy in an Open Environment at Mines

September 27, 2017 @ 2:00 pm - 3:00 pm
Chauvenet Hall, 1015 14th St.
Golden, CO 80401 United States
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Dr. Phil Roming, Computing, Communications and Information Technologies (CCIT), Colorado School of Mines Chauvenet Hall 156 As the central provider for information technology services on campus, CCIT is charged with the often-contradictory mandates of ensuring the security and privacy of our information and at the same time providing an open environment that fosters collaboration and innovation. Dr. Romig’s presentation will provide a technical overview of the security framework used by CCIT in our attempt to fulfil these conflicting institutional needs.…

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October 2017

Applied Math and Statistics Colloquium: Shape Selection Induced by Competition Between Surface and Line Energy

October 13, 2017 @ 3:00 pm - 4:00 pm
Chauvenet Hall, 1015 14th St.
Golden, CO 80401 United States

Join us as Dr. Eliot Fried speaks on Shape Selection Induced by Competition Between Surface and Line Energy.  We will be in CH 143 starting at 3 p.m. Come early for cookies. We will consider a variational problem that consists of finding energetically preferred equilibrium configurations of a system in which a closed, flexible loop is spanned by a soap film. While the loop is modeled by an inextensible, unshearable rod endowed with elastic resistance to bending, the soap film…

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Applied Math and Statistics Colloquium: Diabetes Pathogenesis as a Threshold-Crossing Process

October 20, 2017 @ 3:00 pm - 4:00 pm
Chauvenet Hall, 1015 14th St.
Golden, CO 80401 United States

Speaker: Dr. Arthur Sherman, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health Host Room: Chauvenet Hall 143 It has long been accepted that type 1 diabetes results from a lack of insulin, as the insulin-secreting pancreatic beta cells are destroyed by an autoimmune process. In contrast, the cause of type 2 diabetes (T2D) is less clear. Most people with pre-diabetes or in the early stages of T2D have abnormally high plasma insulin concentrations, and insulin rises…

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November 2017

Applied Mathematics and Statistics Colloquium: Fast direct solvers for boundary integral equations

November 3, 2017 @ 3:00 pm - 4:00 pm
Chauvenet Hall, 1015 14th St.
Golden, CO 80401 United States
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Adrianna Gillman is assistant professor in computational and applied mathematics at Rice University. The numerical solution of linear boundary values problems play an important role in the modeling of physical phenomena. As practitioners continue to want to solve more complicated problems, it is important to develop robust and efficient numerical methods. For some linear boundary value problems, it is possible to recast the problem as an integral equation which sometimes leads to a reduction in dimensionality. The trade-off for the reduction in dimensionality is…

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Applied Mathematics and Statistics Colloquium: Laura Miller, UNC Chapel Hill

November 17, 2017 @ 3:00 pm - 4:00 pm
Chauvenet Hall, 1015 14th St.
Golden, CO 80401 United States
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Laura Miller is associate professor of biology and mathematics at the University of North Carolina at Chapel Hill

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Applied Mathematics and Statistics Special Seminar: A Bayesian Hierarchical Model for Climate-Change Detection and Attribution

November 28, 2017 @ 3:00 pm - 4:00 pm
Chauvenet Hall, 1015 14th St.
Golden, CO 80401 United States
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Dr. Dorit Hammerling (NCAR) will present "A Bayesian Hierarchical Model for Climate-Change Detection and Attribution" Regression-based detection and attribution methods continue to take a central role in the study of climate change and its causes. I will present a novel Bayesian hierarchical approach to this problem, which allows us to address several open methodological questions. Specifically, we take into account the uncertainties in the true temperature change due to imperfect measurements, the uncertainty in the true climate signal under different forcing…

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March 2018

AMS Colloquium: Daniel Appelo – What’s new with the wave equation?

March 23, 2018 @ 3:00 pm - 4:00 pm
Chauvenet Hall, 1015 14th St.
Golden, CO 80401 United States

Join us for an AMS colloquium at 3pm in CH 143. Daniel Appelo will be speaking from the University of Colorado.  Come early for coffee and cookies. Visit the  link for our full list of Colloquium Speakers: https://ams.mines.edu/colloquia/

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