Search Results for author: Lang Liu

Found 11 papers, 6 papers with code

Confidence Sets under Generalized Self-Concordance

no code implementations31 Dec 2022 Lang Liu, Zaid Harchaoui

This paper revisits a fundamental problem in statistical inference from a non-asymptotic theoretical viewpoint $\unicode{x2013}$ the construction of confidence sets.

MAUVE Scores for Generative Models: Theory and Practice

1 code implementation30 Dec 2022 Krishna Pillutla, Lang Liu, John Thickstun, Sean Welleck, Swabha Swayamdipta, Rowan Zellers, Sewoong Oh, Yejin Choi, Zaid Harchaoui

We present MAUVE, a family of comparison measures between pairs of distributions such as those encountered in the generative modeling of text or images.

Quantization

Stochastic Optimization for Spectral Risk Measures

1 code implementation10 Dec 2022 Ronak Mehta, Vincent Roulet, Krishna Pillutla, Lang Liu, Zaid Harchaoui

Spectral risk objectives - also called $L$-risks - allow for learning systems to interpolate between optimizing average-case performance (as in empirical risk minimization) and worst-case performance on a task.

Stochastic Optimization

Statistical and Computational Guarantees for Influence Diagnostics

1 code implementation8 Dec 2022 Jillian Fisher, Lang Liu, Krishna Pillutla, Yejin Choi, Zaid Harchaoui

Influence diagnostics such as influence functions and approximate maximum influence perturbations are popular in machine learning and in AI domain applications.

Orthogonal Statistical Learning with Self-Concordant Loss

no code implementations30 Apr 2022 Lang Liu, Carlos Cinelli, Zaid Harchaoui

Orthogonal statistical learning and double machine learning have emerged as general frameworks for two-stage statistical prediction in the presence of a nuisance component.

Entropy Regularized Optimal Transport Independence Criterion

1 code implementation31 Dec 2021 Lang Liu, Soumik Pal, Zaid Harchaoui

We introduce an independence criterion based on entropy regularized optimal transport.

Score-Based Change Detection for Gradient-Based Learning Machines

1 code implementation27 Jun 2021 Lang Liu, Joseph Salmon, Zaid Harchaoui

The widespread use of machine learning algorithms calls for automatic change detection algorithms to monitor their behavior over time.

BIG-bench Machine Learning Change Detection

Distribution Embedding Network for Meta-Learning with Variable-Length Input

no code implementations1 Jan 2021 Lang Liu, Mahdi Milani Fard, Sen Zhao

We propose Distribution Embedding Network (DEN) for meta-learning, which is designed for applications where both the distribution and the number of features could vary across tasks.

Binary Classification Classification +2

Asymptotics of Discrete Schrödinger Bridges via Chaos Decomposition

no code implementations17 Nov 2020 Zaid Harchaoui, Lang Liu, Soumik Pal

We consider instead in this paper the problem where each matching is endowed with a Gibbs probability weight proportional to the exponential of the negative total cost of that matching.

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