4 papers
Distributed Bilevel Optimization with Dual Pruning for Resource-limited Clients
Mingyi Li, Xiao Zhang, Ruisheng Zheng +4
With the development of large-scale models, traditional distributed bilevel optimization algorithms cannot be applied directly in low-resource clients. The key reason lies in the e…
On universal inference in Gaussian mixture models
Hongjian Shi, Mathias Drton
A recent line of work provides new statistical tools based on game-theory and achieves safe anytime-valid inference without assuming regularity conditions. In particular, the frame…
Existence of Direct Density Ratio Estimators
Erika Banzato, Mathias Drton, Kian Saraf-Poor +1
Many two-sample problems call for a comparison of two distributions from an exponential family. Density ratio estimation methods provide ways to solve such problems through direct…
Distribution-free tests of multivariate independence based on center-outward quadrant, Spearman, Kendall, and van der Waerden statistics
Hongjian Shi, Mathias Drton, Marc Hallin +1
Due to the lack of a canonical ordering in for , defining multivariate generalizations of the classical univariate ranks has been a long-standing open problem…