## Seminars

## Applied Math Colloquium - Jennifer Ryan

Sept. 13, 2019

Jennifer Ryan Department of Applied Mathematics and Statistics, Colorado School of Mines Superconvergence Extraction: How to do it? When is it applicable? Many numerical simulations produce data that contains hidden information. This hidden information can be exploited to create even more accurate representations of the data by appropriately constructing convolution...

## Math Bio Seminar - Tahra Eissa

Sept. 10, 2019

Tahra Eissa Department of Applied Mathematics, University of Colorado Boulder Biased response distributions for short observation sequences of rare events In a constantly changing world, organisms should estimate the rate that their environment changes to adequately weight evidence. However, given a limited number of observations, it is easy to vastly...

## Stats, Optimization, and Machine Learning Seminar - Jorge Poveda

Sept. 10, 2019

Jorge Poveda Department of Electrical, Computer, and Energy Engineering; University of Colorado Boulder Real-Time Optimization with Robustness and Acceleration via Hybrid Dynamical Systems and Averaging Theory In this talk we will discuss robust and accelerated zero-order algorithms for the solution of black-box optimization problems in dynamical systems. In particular, we...

## Applied Math Colloquium - Henry Adams

Sept. 6, 2019

Henry Adams Department of Mathematics, Colorado State University An introduction to applied topology This talk is an introduction to computational topology, as applied to data analysis and to sensor networks. The shape of a dataset often reflects important patterns within. Two such datasets with interesting shapes are a space of...

## Stats, Optimization, and Machine Learning Seminar - Bo Waggoner

Sept. 3, 2019

Bo Waggoner Department of Computer Science, University of Colorado Boulder Toward a Characterization of Loss Functions for Distribution Learning A common machine-learning task is to learn a probability distribution over a very large domain. Examples include natural language processing and generative adversarial networks. But how should the learned distribution be...

## Math Bio Seminar - Harry Dudley

Sept. 3, 2019

Harry Dudley Department of Applied Mathematics, University of Colorado Boulder Model Selection & Bioelectrochemical Systems Microbial electrolysis cells (MECs) are devices that produce hydrogen from renewable organic matter, such as wastewater. These devices require less energy input than water electrolysis and have greater efficiency than fermentative hydrogen production. We present...

## Applied Math Colloquium - Adrianna Gillman

Aug. 30, 2019

Adrianna Gillman Department of Applied Mathematics, University of Colorado Boulder An efficient and high order accurate direct solution technique for variable coefficient elliptic partial differential equations For many applications in science and engineering, the ability to efficiently and accurately approximate solutions to elliptic PDEs dictates what physical phenomena can be...

## Department Colloquium - Marcel Nutz

April 26, 2019

Convergence to the Mean Field Game Limit: A Case Study Mean field games are used as approximations to n-player games with large n. Indeed, n-player Nash equilibria are known to converge to their mean field counterpart when the latter is unique. In this talk we study a specific stochastic game...

## Nonlinear Waves Seminar - Igor Rumanov

April 23, 2019

Whitham theory and dispersive shock waves (DSWs) for the radial nonlinear Schroedinger (rNLS) equation. Dispersive shock waves of the defocusing rNLS equation in two spatial dimensions are studied. This equation arises naturally in Bose-Einstein condensates, water waves and nonlinear optics. A unified nonlinear WKB approach, equally applicable to integrable and...

## Stats, Optimization, and Machine Learning Seminar - Sidney D'Mello

April 23, 2019

Project Tesserae: Longitudinal Multimodal Modeling of Individuals in Naturalistic Contexts I will describe our team’s efforts on a two-year Intelligence Advanced Research Projects Activity (IARPA) program called MOSAIC - Multimodal Objective Sensing to Assess Individuals with Context. The program’s ambitious aims are to “advance multimodal sensing to measure personnel and...