Events

Sujit Ghosh, Department of Statistics, North Carolina State University, will give a colloquium titled, "Does Knowledge of Shapes Matter in Statistics?" at 4:15 PM in 127 Hayes-Healy Center.

Abstract

Full List of ACMS Colloquia…

Paul Bressloff, Department of Mathematics, University of Utah, will give a John A. Lynch Lecture titled, "Spontaneous brain dynamics: geometric visual hallucinations, ambiguous perception, and stochastic attractor networks" at 4:00 PM in 105 Jordan Hall of Science.…

Bayan Saparbayeva
University of Notre Dame

3:30 PM
154 Hurley Hall

Catalyst Acceleration for Non-convex Optimization on Manifolds

In the following work, we propose an extension of a class of optimization algorithms to non-convex problems on manifold spaces. To accomplish this, we leverage ideas from recent work on the “Catalyst” algorithm for non-convex optimization on Euclidean spaces H. Lin et al. (2017). This method is initially designed to accelerate existing optimization algorithms for convex objective functions but is also amenable to non-convex functions. We apply the Catalyst acceleration scheme to many existing optimization routines, such as gradient descent, Newtonian methods and algorithms that are designed for distributed parallel inference on manifolds such as Sarpabayeva et al. (2018). One can show that the algorithm generally converges to the stationary point, and in the case of strongly convex functions, it converges to the local minimum. We will provide convergence analysis of the algorithms and present applications for a large class of objective functions in various manifold spaces.…

Doctoral candidate, Christopher Ebsch, will defend his dissertation, Friday March 29, 2019, at 12:30 p.m. in the 101A Crowley Commons Room.
The beginning portion is open to the public.

Title: Excitatory-inhibitory balance, imbalance, and amplification in cortical network models
Adviser: Robert Rosenbaum
…

Guantao Chen, Dept. of Mathematics & Statistics, Georgia State University, will give a colloquium titled, "THE GOLDBERG-SEYMOUR CONJECTURE" at 4:35 PM in 127 Hayes-Healy Center.

Abstract

Full List of ACMS Colloquia…

ASA DataFest is a data analysis competition where teams of up to five students attack a large, complex, and surprise dataset over a weekend. Your job is to represent your school by finding and communicating insights into these data. The teams that impress the judges will win prizes as well as glory for their school. Everyone will have a great experience, lots of food, and fun!
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ASA DataFest is a data analysis competition where teams of up to five students attack a large, complex, and surprise dataset over a weekend. Your job is to represent your school by finding and communicating insights into these data. The teams that impress the judges will win prizes as well as glory for their school. Everyone will have a great experience, lots of food, and fun!
…

ASA DataFest is a data analysis competition where teams of up to five students attack a large, complex, and surprise dataset over a weekend. Your job is to represent your school by finding and communicating insights into these data. The teams that impress the judges will win prizes as well as glory for their school. Everyone will have a great experience, lots of food, and fun!
…

Please join us at HCRI’s 8th Annual Cancer Research Day! 

Research Day is an excellent opportunity to learn about cancer research being conducted in our community. This event includes a poster session, lectures, career panel and a Keynote Address.

RESEARCH DAY IS FREE AND OPEN TO THE PUBLIC.

KEYNOTE ADDRESS: DARIO…

Christopher Wikle, Dept. of Statistics, University of Missouri, will give a colloquium titled, "TBD" at 4:15 PM in 127 Hayes-Healy Center.

Full List of ACMS Colloquia…