Search Results for author: Shogo Iwazaki

Found 6 papers, 1 papers with code

Active learning for distributionally robust level-set estimation

no code implementations8 Feb 2021 Yu Inatsu, Shogo Iwazaki, Ichiro Takeuchi

A natural measure of robustness is the probability that $f(\bm x, \bm w)$ exceeds a given threshold $h$, which is known as the \emph{probability threshold robustness} (PTR) measure in the literature on robust optimization.

Active Learning

Quantifying Statistical Significance of Neural Network-based Image Segmentation by Selective Inference

2 code implementations5 Oct 2020 Vo Nguyen Le Duy, Shogo Iwazaki, Ichiro Takeuchi

To overcome this difficulty, we introduce a conditional selective inference (SI) framework -- a new statistical inference framework for data-driven hypotheses that has recently received considerable attention -- to compute exact (non-asymptotic) valid p-values for the segmentation results.

Computational Efficiency Image Segmentation +4

Mean-Variance Analysis in Bayesian Optimization under Uncertainty

no code implementations17 Sep 2020 Shogo Iwazaki, Yu Inatsu, Ichiro Takeuchi

As an AL problem in such an uncertain environment, we study Mean-Variance Analysis in Bayesian Optimization (MVA-BO) setting.

Active Learning Bayesian Optimization

Bayesian Quadrature Optimization for Probability Threshold Robustness Measure

no code implementations22 Jun 2020 Shogo Iwazaki, Yu Inatsu, Ichiro Takeuchi

In many product development problems, the performance of the product is governed by two types of parameters called design parameter and environmental parameter.

Active Learning

Bayesian Experimental Design for Finding Reliable Level Set under Input Uncertainty

no code implementations26 Oct 2019 Shogo Iwazaki, Yu Inatsu, Ichiro Takeuchi

In the manufacturing industry, it is often necessary to repeat expensive operational testing of machine in order to identify the range of input conditions under which the machine operates properly.

Active Learning Experimental Design

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