Search Results for author: Iñaki Esnaola

Found 12 papers, 1 papers with code

Equivalence of the Empirical Risk Minimization to Regularization on the Family of f-Divergences

no code implementations1 Feb 2024 Francisco Daunas, Iñaki Esnaola, Samir M. Perlaza, H. Vincent Poor

The solution to empirical risk minimization with $f$-divergence regularization (ERM-$f$DR) is presented under mild conditions on $f$.

Inductive Bias

Generalization Analysis of Machine Learning Algorithms via the Worst-Case Data-Generating Probability Measure

no code implementations19 Dec 2023 Xinying Zou, Samir M. Perlaza, Iñaki Esnaola, Eitan Altman

Fundamental generalization metrics, such as the sensitivity of the expected loss, the sensitivity of the empirical risk, and the generalization gap are shown to have closed-form expressions involving the worst-case data-generating probability measure.

Analysis of the Relative Entropy Asymmetry in the Regularization of Empirical Risk Minimization

no code implementations12 Jun 2023 Francisco Daunas, Iñaki Esnaola, Samir M. Perlaza, H. Vincent Poor

The analysis of the solution unveils the following properties of relative entropy when it acts as a regularizer in the ERM-RER problem: i) relative entropy forces the support of the Type-II solution to collapse into the support of the reference measure, which introduces a strong inductive bias that dominates the evidence provided by the training data; ii) Type-II regularization is equivalent to classical relative entropy regularization with an appropriate transformation of the empirical risk function.

Inductive Bias

Empirical Risk Minimization with Relative Entropy Regularization

no code implementations12 Nov 2022 Samir M. Perlaza, Gaetan Bisson, Iñaki Esnaola, Alain Jean-Marie, Stefano Rini

Among these properties, the solution to this problem, if it exists, is shown to be a unique probability measure, mutually absolutely continuous with the reference measure.

An information theoretic vulnerability metric for data integrity attacks on smart grids

no code implementations4 Nov 2022 Xiuzhen Ye, Iñaki Esnaola, Samir M. Perlaza, Robert F. Harrison

A novel metric that describes the vulnerability of the measurements in power systems to data integrity attacks is proposed.

Power Injection Measurements are more Vulnerable to Data Integrity Attacks than Power Flow Measurements

no code implementations14 Jul 2022 Xiuzhen Ye, Iñaki Esnaola, Samir M. Perlaza, Robert F. Harrison

The result of computing the VuIx of the measurements in the system yields an ordering of the measurements vulnerability based on the level of exposure to data integrity attacks.

Empirical Risk Minimization with Relative Entropy Regularization: Optimality and Sensitivity Analysis

no code implementations9 Feb 2022 Samir M. Perlaza, Gaetan Bisson, Iñaki Esnaola, Alain Jean-Marie, Stefano Rini

The optimality and sensitivity of the empirical risk minimization problem with relative entropy regularization (ERM-RER) are investigated for the case in which the reference is a sigma-finite measure instead of a probability measure.

Stealth Data Injection Attacks with Sparsity Constraints

no code implementations31 Dec 2021 Xiuzhen Ye, Iñaki Esnaola, Samir M. Perlaza, Robert F. Harrison

Sparse stealth attack constructions that minimize the mutual information between the state variables and the observations are proposed.

Covariance Estimation from Compressive Data Partitions using a Projected Gradient-based Algorithm

1 code implementation11 Jan 2021 Jonathan Monsalve, Juan Ramirez, Iñaki Esnaola, Henry Arguello

The algorithm estimates the covariance matrix of hyperspectral images from synthetic and real compressive samples.

Compressive Sensing

Information Theoretic Data Injection Attacks with Sparsity Constraints

no code implementations6 Jul 2020 Xiuzhen Ye, Iñaki Esnaola, Samir M. Perlaza, Robert F. Harrison

The attack construction is formulated as an optimization problem that aims to minimize the mutual information between the state variables and the observations while guaranteeing the stealth of the attack.

Optimal Control over Multiple Input Lossy Channels

no code implementations18 Nov 2019 William Casbolt, Bryn Jones, Iñaki Esnaola

The performance of control systems with input packet losses on the controller to plant communication channel is analysed.

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