Search Results for author: Yoichi Chikahara

Found 5 papers, 1 papers with code

Differentiable Pareto-Smoothed Weighting for High-Dimensional Heterogeneous Treatment Effect Estimation

no code implementations26 Apr 2024 Yoichi Chikahara, Kansei Ushiyama

There is a growing interest in estimating heterogeneous treatment effects across individuals using their high-dimensional feature attributes.

Representation Learning Selection bias

Uncertainty Quantification in Heterogeneous Treatment Effect Estimation with Gaussian-Process-Based Partially Linear Model

1 code implementation16 Dec 2023 Shunsuke Horii, Yoichi Chikahara

We propose a Bayesian inference framework that quantifies the uncertainty in treatment effect estimation to support decision-making in a relatively small sample size setting.

Bayesian Inference Decision Making +1

Meta-learning for heterogeneous treatment effect estimation with closed-form solvers

no code implementations19 May 2023 Tomoharu Iwata, Yoichi Chikahara

With our formulation, we can obtain optimal task-specific parameters in a closed form that are differentiable with respect to task-shared parameters, making it possible to perform effective meta-learning.

Meta-Learning

Feature Selection for Discovering Distributional Treatment Effect Modifiers

no code implementations1 Jun 2022 Yoichi Chikahara, Makoto Yamada, Hisashi Kashima

Finding the features relevant to the difference in treatment effects is essential to unveil the underlying causal mechanisms.

Feature Importance feature selection

Learning Individually Fair Classifier with Path-Specific Causal-Effect Constraint

no code implementations17 Feb 2020 Yoichi Chikahara, Shinsaku Sakaue, Akinori Fujino, Hisashi Kashima

To avoid restrictive functional assumptions, we define the {\it probability of individual unfairness} (PIU) and solve an optimization problem where PIU's upper bound, which can be estimated from data, is controlled to be close to zero.

Fairness

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