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07/18/2023
Sparse Gaussian Graphical Models with Discrete Optimization: Computational and Statistical Perspectives
We consider the problem of learning a sparse graph underlying an undirec...
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02/23/2023
Sharpness-Aware Minimization: An Implicit Regularization Perspective
Sharpness-Aware Minimization (SAM) is a recent optimization framework ai...
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12/16/2022
Multi-Task Learning for Sparsity Pattern Heterogeneity: A Discrete Optimization Approach
We extend best-subset selection to linear Multi-Task Learning (MTL), whe...
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09/23/2021
Sparse PCA: A New Scalable Estimator Based On Integer Programming
We consider the Sparse Principal Component Analysis (SPCA) problem under...
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04/08/2021
Archetypal Analysis for Sparse Nonnegative Matrix Factorization: Robustness Under Misspecification
We consider the problem of sparse nonnegative matrix factorization (NMF)...
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10/07/2018
Recovering Quantized Data with Missing Information Using Bilinear Factorization and Augmented Lagrangian Method
In this paper, we propose a novel approach in order to recover a quantiz...
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05/19/2018
Transduction with Matrix Completion Using Smoothed Rank Function
In this paper, we propose two new algorithms for transduction with Matri...
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04/07/2017