Skip to main content

Colloquium – Peter Song University of Michigan

120 Hanes Hall Hanes Hall, Chapel Hill, NC, United States

Peter Song, Department of Biostatistics, University of Michigan Title: Supervised Homogeneity Pursuit via Mixed Integer Optimization Abstract: Stratification is one statistical principle in data processing to mitigate the underlying population heterogeneity, which is typically handled by clustering when stratum labels are … Read more

Colloquium- Ray Bai University of South Carolina

120 Hanes Hall Hanes Hall, Chapel Hill, NC, United States

TITLE: Generative Quantile Regression with Variability Penalty ABSTRACT: Quantile regression and conditional density estimation can reveal structure that is missed by mean regression, such as multimodality and skewness. In this talk, we introduce a deep learning generative model for joint quantile estimation … Read more

Colloquium- Sajad Modaresi University of North Carolina at Chapel Hill

120 Hanes Hall Hanes Hall, Chapel Hill, NC, United States

Sajad Mordaresi Kenan-Flagler Business School University of Northing Carolina at Chapel Hill   Exploration Optimization for Dynamic Assortment Personalization under Linear Preferences Abstract We study the dynamic assortment personalization problem of an online retailer that adaptively customizes assortments based on … Read more

RTG Lunch in Spring 2024

Carolina Union 3206AB 209 South Rd, Chapel Hill, NC, United States

RTG Lunch in Spring 2024   Time: 12:30 – 1:45 pm, Mar 19, 2024 Location: Carolina Union Room 3206AB (209 South Rd, Chapel Hill, NC 27599) Support: This luncheon is supported by RTG grant (NSF DMS-2134107) Event Link: https://networks-pods-rtg.unc.edu/event/rtg-women-luncheon-spring-2024/ RTG website: https://networks-pods-rtg.unc.edu/ Contact: Yao Li (yaoli@email.unc.edu) … Read more

Ph. D. Defense- Pavlos Zoubouloglou

125 Hanes Hall Hanes Hall, Chapel Hill, NC, United States

Under the direction of: Amarjit Budhiraja. Title: Large Deviation Principles for Some Stochastic Dynamical Systems With Asymptotically Vanishing Noise Abstract: We study three problems. First, we consider the large deviation behavior of empirical measures of certain diffusion processes as, simultaneously, the time horizon … Read more

IDEAS Seminar- Erik Bates: North Carolina State University

120 Hanes Hall Hanes Hall, Chapel Hill, NC, United States

Erik Bates Department of Mathematics North Carolina State University   Title: The Busemann process of (1+1)-dimensional directed polymers Abstract: Directed polymers are a statistical mechanics model for random growth.  Their partition functions are solutions to a discrete stochastic heat equation.  … Read more

Colloquium- Sara Shashaani North Carolina State University

120 Hanes Hall Hanes Hall, Chapel Hill, NC, United States

Sara Shashaani Department of Industrial and Systems Engineering North Carolina State University   Title: Adaptive Sampling with Trust-region Optimization for Nonconvex Stochastic Functions. Abstract: Simulation Optimization problems are often non-convex, derivative-free, and with stochastic noise that may be notably heteroskedastic. There is … Read more

Ph.D Defense- Prabhanka Deka

313 Dey Hall

Time: Apr 5, 2024 02:00 PM Eastern Time (US and Canada) Join Zoom Meeting https://unc.zoom.us/j/95328502600?pwd=M1N4Q0ZZaXB1OXJ4WVdDeUVRbXNEUT09 Meeting ID: 953 2850 2600 Passcode: 948315 Title: Local weak limits for random digraphs Under the direction of: Dr. Sayan Banerjee and Dr. Mariana Olvera-Cravioto … Read more

STOR Colloquium: Li Ma, Duke University

120 Hanes Hall Hanes Hall, Chapel Hill, NC, United States

Generative modeling with trees and recursive partitions Trees and recursive partitions are most well-known in supervised learning for predictive tasks, such as regression and classification. Famous examples include CART and its various forms of ensembles—e.g., random forest and boosting. A … Read more

IDEAS Seminar- Greg Terlov: University of North Carolina at Chapel Hill

125 Hanes Hall Hanes Hall, Chapel Hill, NC, United States

Grigory Terlov Department of Statistics and Operations Research University of North Carolina at Chapel Hill   Title: Random optimization problems at fixed temperatures Abstract: We consider a class of disordered mean-field combinatorial optimization problems, focusing on the Gibbs measure, where … Read more