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Rudy R Bunel

9 accepted papers

2024

Efficient Error Certification for Physics-Informed Neural Networks

ICML 2024poster

Recent work provides promising evidence that Physics-Informed Neural Networks (PINN) can efficiently solve partial differential equations (PDE). However, previous works have failed to provide guarantees on the *worst-case* residual error of a PINN across the spatio-temporal domain - a measure akin t…

Cited by 3SourcePDFScholar
2024

Expressive Losses for Verified Robustness via Convex Combinations

ICLR 2024poster

In order to train networks for verified adversarial robustness, it is common to over-approximate the worst-case loss over perturbation regions, resulting in networks that attain verifiability at the expense of standard performance. As shown in recent work, better trade-offs between accuracy and robu…

2021

Make Sure You're Unsure: A Framework for Verifying Probabilistic Specifications

NeurIPS 2021spotlight

Most real world applications require dealing with stochasticity like sensor noise or predictive uncertainty, where formal specifications of desired behavior are inherently probabilistic. Despite the promise of formal verification in ensuring the reliability of neural networks, progress in the direc…

2021

Scaling the Convex Barrier with Active Sets

ICLR 2021poster

Tight and efficient neural network bounding is of critical importance for the scaling of neural network verification systems. A number of efficient specialised dual solvers for neural network bounds have been presented recently, but they are often too loose to verify more challenging properties. Thi…

Cited by 71SourcePDFScholar
2020

An efficient nonconvex reformulation of stagewise convex optimization problems

NeurIPS 2020poster

Convex optimization problems with staged structure appear in several contexts, including optimal control, verification of deep neural networks, and isotonic regression. Off-the-shelf solvers can solve these problems but may scale poorly. We develop a nonconvex reformulation designed to exploit this…

Cited by 20SourcePDFScholar
2020

Enabling certification of verification-agnostic networks via memory-efficient semidefinite programming

NeurIPS 2020poster

Convex relaxations have emerged as a promising approach for verifying properties of neural networks, but widely used using Linear Programming (LP) relaxations only provide meaningful certificates when networks are specifically trained to facilitate verification. This precludes many important applica…

2018

A Unified View of Piecewise Linear Neural Network Verification

NeurIPS 2018poster

The success of Deep Learning and its potential use in many safety-critical applications has motivated research on formal verification of Neural Network (NN) models. Despite the reputation of learned NN models to behave as black boxes and the theoretical hardness of proving their properties, re…

2016

Adaptive Neural Compilation

NeurIPS 2016poster

This paper proposes an adaptive neural-compilation framework to address the problem of learning efficient program. Traditional code optimisation strategies used in compilers are based on applying pre-specified set of transformations that make the code faster to execute without changing its semantics…