Search Results for author: Y. Samuel Wang

Found 7 papers, 5 papers with code

Robust Inference for High-Dimensional Linear Models via Residual Randomization

1 code implementation14 Jun 2021 Y. Samuel Wang, Si Kai Lee, Panos Toulis, Mladen Kolar

We propose a residual randomization procedure designed for robust Lasso-based inference in the high-dimensional setting.

valid Vocal Bursts Intensity Prediction

High-dimensional Functional Graphical Model Structure Learning via Neighborhood Selection Approach

1 code implementation6 May 2021 Boxin Zhao, Percy S. Zhai, Y. Samuel Wang, Mladen Kolar

We propose a neighborhood selection approach to estimate the structure of Gaussian functional graphical models, where we first estimate the neighborhood of each node via a function-on-function regression and subsequently recover the entire graph structure by combining the estimated neighborhoods.

Dimensionality Reduction EEG +1

FuDGE: A Method to Estimate a Functional Differential Graph in a High-Dimensional Setting

no code implementations11 Mar 2020 Boxin Zhao, Y. Samuel Wang, Mladen Kolar

We first define a functional differential graph that captures the differences between two functional graphical models and formally characterize when the functional differential graph is well defined.

EEG

Direct Estimation of Differential Functional Graphical Models

1 code implementation NeurIPS 2019 Boxin Zhao, Y. Samuel Wang, Mladen Kolar

We consider the problem of estimating the difference between two functional undirected graphical models with shared structures.

EEG

On Causal Discovery with Equal Variance Assumption

2 code implementations9 Jul 2018 Wenyu Chen, Mathias Drton, Y. Samuel Wang

Prior work has shown that causal structure can be uniquely identified from observational data when these follow a structural equation model whose error terms have equal variances.

Methodology Computation

On the use of bootstrap with variational inference: Theory, interpretation, and a two-sample test example

no code implementations29 Nov 2017 Yen-Chi Chen, Y. Samuel Wang, Elena A. Erosheva

Variational inference is a general approach for approximating complex density functions, such as those arising in latent variable models, popular in machine learning.

Bayesian Inference Variational Inference

A Variational EM Method for Mixed Membership Models with Multivariate Rank Data: an Analysis of Public Policy Preferences

1 code implementation29 Dec 2015 Y. Samuel Wang, Ross Matsueda, Elena A. Erosheva

In this article, we consider modeling ranked responses from a heterogeneous population.

Methodology Applications

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