3 papers
stat.ME2026
Asymptotic Theory of Tail Dependence and Bootstrap for Checkerboard Copulas
Mayukh Choudhury, Debraj Das, Sujit Ghosh
A comprehensive asymptotic and bootstrap theory is established for checkerboard-based estimation of the copula and its lower and upper tail copula counterparts under unknown margin…
astro-ph.IM2024
Conformal Prediction for Astronomy Data with Measurement Error
Naomi Giertych, Jonathan P Williams, Sujit Ghosh
Astronomers often deal with data where the covariates and the dependent variable are measured with heteroscedastic non-Gaussian error. For instance, while TESS and Kepler datasets…
math.OC2023
ProGO: Probabilistic Global Optimizer
Xinyu Zhang, Sujit Ghosh
In the field of global optimization, many existing algorithms face challenges posed by non-convex target functions and high computational complexity or unavailability of gradient i…