Search Results for author: Morgane Austern

Found 8 papers, 3 papers with code

Inference on Optimal Dynamic Policies via Softmax Approximation

no code implementations8 Mar 2023 Qizhao Chen, Morgane Austern, Vasilis Syrgkanis

Estimating optimal dynamic policies from offline data is a fundamental problem in dynamic decision making.

Causal Inference Decision Making

Debiased Machine Learning without Sample-Splitting for Stable Estimators

no code implementations3 Jun 2022 Qizhao Chen, Vasilis Syrgkanis, Morgane Austern

For instance, we show that the stability properties that we propose are satisfied for ensemble bagged estimators, built via sub-sampling without replacement, a popular technique in machine learning practice.

BIG-bench Machine Learning

Quantifying the Effects of Data Augmentation

no code implementations18 Feb 2022 Kevin H. Huang, Peter Orbanz, Morgane Austern

We provide results that exactly quantify how data augmentation affects the convergence rate and variance of estimates.

Data Augmentation

Asymptotics of the Bootstrap via Stability with Applications to Inference with Model Selection

no code implementations NeurIPS 2021 Morgane Austern, Vasilis Syrgkanis

One of the most commonly used methods for forming confidence intervals is the empirical bootstrap, which is especially expedient when the limiting distribution of the estimator is unknown.

BIG-bench Machine Learning Model Selection

Asymptotics of Network Embeddings Learned via Subsampling

2 code implementations6 Jul 2021 Andrew Davison, Morgane Austern

We prove, under the assumption that the graph is exchangeable, that the distribution of the learned embedding vectors asymptotically decouples.

Link Prediction Node Classification +1

Asymptotics of the Empirical Bootstrap Method Beyond Asymptotic Normality

no code implementations23 Nov 2020 Morgane Austern, Vasilis Syrgkanis

One of the most commonly used methods for forming confidence intervals for statistical inference is the empirical bootstrap, which is especially expedient when the limiting distribution of the estimator is unknown.

Empirical Risk Minimization and Stochastic Gradient Descent for Relational Data

1 code implementation27 Jun 2018 Victor Veitch, Morgane Austern, Wenda Zhou, David M. Blei, Peter Orbanz

We solve this problem using recent ideas from graph sampling theory to (i) define an empirical risk for relational data and (ii) obtain stochastic gradients for this empirical risk that are automatically unbiased.

Graph Sampling Node Classification

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