collaborators

6 papers

stat.ML2025

Uniform convergence for Gaussian kernel ridge regression

Paul Dommel, Rajmadan Lakshmanan

This paper establishes the first polynomial convergence rates for Gaussian kernel ridge regression (KRR) with a fixed hyperparameter in both the uniform and the -norm. The u…

math.OC2025

StochasticDominance.jl: A Julia Package for Higher Order Stochastic Dominance

Rajmadan Lakshmanan, Alois Pichler

Stochastic dominance is a fundamental concept in decision-making under uncertainty and quantitative finance, yet its practical application is hindered by computational intractabili…

math.OC2025

Higher-Order Stochastic Dominance Constraints in Optimization

Rajmadan Lakshmanan, Alois Pichler, Miloš Kopa

This contribution examines optimization problems that involve stochastic dominance constraints. These problems have uncountably many constraints. We develop methods to solve the op…

math.PR2023

Soft Quantization using Entropic Regularization

Rajmadan Lakshmanan, Alois Pichler

The quantization problem aims to find the best possible approximation of probability measures on using finite, discrete measures. The Wasserstein distance is a typ…

math.OC2023

Unbalanced Optimal Transport and Maximum Mean Discrepancies: Interconnections and Rapid Evaluation

Rajmadan Lakshmanan, Alois Pichler

This contribution presents substantial computational advancements to compare measures even with varying masses. Specifically, we utilize the nonequispaced fast Fourier transform to…

math.OC2023

Expectiles In Risk Averse Stochastic Programming and Dynamic Optimization

Rajmadan Lakshmanan, Alois Pichler

This paper features expectiles in dynamic and stochastic optimization. Expectiles are a family of risk functionals characterized as minimizers of optimization problems. For this re…