Search Results for author: Bart Van Parys

Found 7 papers, 4 papers with code

Certified Robust Neural Networks: Generalization and Corruption Resistance

1 code implementation3 Mar 2023 Amine Bennouna, Ryan Lucas, Bart Van Parys

We demonstrate both theoretically as well as empirically the loss to enjoy a certified level of robustness against two common types of corruption--data evasion and poisoning attacks--while ensuring guaranteed generalization.

Holistic Robust Data-Driven Decisions

no code implementations19 Jul 2022 Amine Bennouna, Bart Van Parys

However, we show how in the context of classification and regression problems that several popular regularized and robust formulations reduce to a particular case of our proposed novel formulation.

Decision Making

Sparse Regression: Scalable algorithms and empirical performance

1 code implementation18 Feb 2019 Dimitris Bertsimas, Jean Pauphilet, Bart Van Parys

A cogent feature selection method is expected to exhibit a two-fold convergence, namely the accuracy and false detection rate should converge to $1$ and $0$ respectively, as the sample size increases.

Methodology

Bootstrap Robust Prescriptive Analytics

1 code implementation27 Nov 2017 Dimitris Bertsimas, Bart Van Parys

The associated robust prescriptive methods furthermore reduce to convenient tractable convex optimization problems in the context of local learning methods such as nearest neighbors and Nadaraya-Watson learning.

Decision Making

Sparse Classification and Phase Transitions: A Discrete Optimization Perspective

1 code implementation3 Oct 2017 Dimitris Bertsimas, Jean Pauphilet, Bart Van Parys

In this paper, we formulate the sparse classification problem of $n$ samples with $p$ features as a binary convex optimization problem and propose a cutting-plane algorithm to solve it exactly.

Optimization and Control

Sparse High-Dimensional Regression: Exact Scalable Algorithms and Phase Transitions

no code implementations28 Sep 2017 Dimitris Bertsimas, Bart Van Parys

We present a novel binary convex reformulation of the sparse regression problem that constitutes a new duality perspective.

regression Vocal Bursts Intensity Prediction

Sparse Hierarchical Regression with Polynomials

no code implementations28 Sep 2017 Dimitris Bertsimas, Bart Van Parys

The ability of our method to identify all $k$ relevant inputs and all $\ell$ monomial terms is shown empirically to experience a phase transition.

regression

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