no code implementations • 22 Mar 2024 • Shujie Ma, Po-Yao Niu, Yichong Zhang, Yinchu Zhu
This paper investigates statistical inference for noisy matrix completion in a semi-supervised model when auxiliary covariates are available.
no code implementations • 1 Oct 2023 • Yinchu Zhu, Ilya O. Ryzhov
Semidiscrete optimal transport is a challenging generalization of the classical transportation problem in linear programming.
no code implementations • 21 Jun 2022 • Yinchu Zhu
We provide a condition called sign saturation and show that this condition is sufficient for the identification of the model.
no code implementations • 19 Jun 2022 • Yinchu Zhu, Ilya O. Ryzhov
We present a hiring policy that depends on the protected attribute functionally, but not statistically, and we prove that, among all possible fair policies, ours is optimal with respect to the firm's objective.
no code implementations • 24 Mar 2021 • Yinchu Zhu
This boundary of phase transition is explicitly characterized in the case of binary outcomes.
no code implementations • 21 Mar 2021 • Jelena Bradic, Yinchu Zhu
Breiman challenged statisticians to think more broadly, to step into the unknown, model-free learning world, with him paving the way forward.
no code implementations • 27 Dec 2019 • Jelena Bradic, Victor Chernozhukov, Whitney K. Newey, Yinchu Zhu
This paper is about the feasibility and means of root-n consistently estimating linear, mean-square continuous functionals of a high dimensional, approximately sparse regression.
1 code implementation • 17 Sep 2019 • Victor Chernozhukov, Kaspar Wüthrich, Yinchu Zhu
We propose a robust method for constructing conditionally valid prediction intervals based on models for conditional distributions such as quantile and distribution regression.
no code implementations • 2 May 2019 • Jelena Bradic, Stefan Wager, Yinchu Zhu
Many popular methods for building confidence intervals on causal effects under high-dimensional confounding require strong "ultra-sparsity" assumptions that may be difficult to validate in practice.
Statistics Theory Econometrics Methodology Statistics Theory
1 code implementation • 27 Dec 2018 • Victor Chernozhukov, Kaspar Wuthrich, Yinchu Zhu
We propose a practical and robust method for making inferences on average treatment effects estimated by synthetic controls.
no code implementations • 26 Feb 2018 • Jelena Bradic, Jianqing Fan, Yinchu Zhu
Uniform non-testability identifies a collection of alternatives such that the power of any test, against any alternative in the group, is asymptotically at most equal to the nominal size.
no code implementations • 17 Feb 2018 • Victor Chernozhukov, Kaspar Wuthrich, Yinchu Zhu
We extend conformal inference to general settings that allow for time series data.
3 code implementations • 25 Dec 2017 • Victor Chernozhukov, Kaspar Wüthrich, Yinchu Zhu
We introduce new inference procedures for counterfactual and synthetic control methods for policy evaluation.
no code implementations • 1 Aug 2017 • Yinchu Zhu, Jelena Bradic
In this article, we are interested in conducting large-scale inference in models that might have signals of mixed strengths.
no code implementations • 6 May 2017 • Jelena Bradic, Yinchu Zhu
We provide comments on the article "High-dimensional simultaneous inference with the bootstrap" by Ruben Dezeure, Peter Buhlmann and Cun-Hui Zhang.
no code implementations • 2 May 2017 • Yinchu Zhu, Jelena Bradic
We propose a new inference method developed around the hypothesis adaptive projection pursuit framework, which solves the testing problems in the most general case.
no code implementations • 14 Oct 2016 • Yinchu Zhu, Jelena Bradic
In analyzing high-dimensional models, sparsity of the model parameter is a common but often undesirable assumption.
no code implementations • 10 Oct 2016 • Yinchu Zhu, Jelena Bradic
The test statistics are constructed in such a way that lack of sparsity in the original model parameter does not present a problem for the theoretical justification of our procedures.
no code implementations • 7 Oct 2016 • Yinchu Zhu, Jelena Bradic
We show that existing inferential methods are sensitive to the sparsity assumption, and may, in turn, result in the severe lack of control of Type-I error.