13 citations · 33 across the 25 of their papers we have counts for
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stat.ML2021
Improving Nonparametric Classification via Local Radial Regression with an Application to Stock Prediction
Ruixing Cao, Akifumi Okuno, Kei Nakagawa +1
For supervised classification problems, this paper considers estimating the query's label probability through local regression using observed covariates. Well-known nonparametric k…
stat.ML2021
A generalization gap estimation for overparameterized models via the Langevin functional variance
Akifumi Okuno, Keisuke Yano
This paper discusses the estimation of the generalization gap, the difference between generalization performance and training performance, for overparameterized models including ne…
math.ST2021
Minimax Analysis for Inverse Risk in Nonparametric Planer Invertible Regression
Akifumi Okuno, Masaaki Imaizumi
We study a minimax risk of estimating inverse functions on a plane, while keeping an estimator is also invertible. Learning invertibility from data and exploiting an invertible est…