Publications related to Stochastic Zeroth-Order Optimisation Algorithms with Variance Reduction

Extensions of Peer Prediction Incentive Mechanisms

As large, data-driven artificial intelligence models become ubiquitous, guaranteeing high data quality is imperative for constructing models. Crowdsourcing, community sensing, and data filtering have long been the standard approaches to guaranteeing or imp ...

EPFL2024

Learning the intrinsic dynamics of spatio-temporal processes through Latent Dynamics Networks

Alfio Quarteroni, Francesco Regazzoni, Stefano Pagani

Predicting the evolution of systems with spatio-temporal dynamics in response to external stimuli is essential for scientific progress. Traditional equations-based approaches leverage first principles through the numerical approximation of differential equ ...

Nature Portfolio2024

Performing and Detecting Backdoor Attacks on Face Recognition Algorithms

Alexander Carl Unnervik

The field of biometrics, and especially face recognition, has seen a wide-spread adoption the last few years, from access control on personal devices such as phones and laptops, to automated border controls such as in airports. The stakes are increasingly ...

EPFL2024

Resource-Efficient Continual Learning for Personalized Online Seizure Detection

David Atienza Alonso, Giovanni Ansaloni, José Angel Miranda Calero, Jonathan Dan, Amirhossein Shahbazinia, Flavio Ponzina

Epilepsy, a major neurological disease, requires careful diagnosis and treatment. However, the detection of epileptic seizures remains a significant challenge. Current clinical practice relies on expert analysis of EEG signals, a process that is time-consu ...

2024

Leveraging Continuous Time to Understand Momentum When Training Diagonal Linear Networks

Nicolas Henri Bernard Flammarion, Hristo Georgiev Papazov, Scott William Pesme

In this work, we investigate the effect of momentum on the optimisation trajectory of gradient descent. We leverage a continuous-time approach in the analysis of momentum gradient descent with step size

\gamma

and momentum parameter

\beta

that allows u ...

2024

Meta-learning to address diverse Earth observation problems across resolutions

Devis Tuia, Benjamin Alexander Kellenberger, Marc Conrad Russwurm

Earth scientists study a variety of problems with remote sensing data, but they most often consider them in isolation from each other, which limits information flows across disciplines. In this work, we present METEOR, a meta-learning methodology for Earth ...

London2024

Randomized flexible GMRES with deflated restarting

Laura Grigori, Emeric Martin

For a high dimensional problem, a randomized Gram-Schmidt (RGS) algorithm is beneficial in computational costs as well as numerical stability. We apply this dimension reduction technique by random sketching to Krylov subspace methods, e.g. to the generaliz ...

Springer2024

A graph convolutional autoencoder approach to model order reduction for parametrized PDEs

Jan Sickmann Hesthaven, Federico Pichi

The present work proposes a framework for nonlinear model order reduction based on a Graph Convolutional Autoencoder (GCA-ROM). In the reduced order modeling (ROM) context, one is interested in obtaining real -time and many-query evaluations of parametric ...

San Diego2024

Generalization and Personalization of Machine Learning for Multimodal Mobile Sensing in Everyday Life

Lakmal Buddika Meegahapola

A range of behavioral and contextual factors, including eating and drinking behavior, mood, social context, and other daily activities, can significantly impact an individual's quality of life and overall well-being. Therefore, inferring everyday life aspe ...

EPFL2024

Explainable Face Verification via Feature-Guided Gradient Backpropagation

Touradj Ebrahimi, Yuhang Lu, Zewei Xu

Recent years have witnessed significant advance- ment in face recognition (FR) techniques, with their applications widely spread in people’s lives and security-sensitive areas. There is a growing need for reliable interpretations of decisions of such syste ...

2024

Stochastic Zeroth-Order Optimisation Algorithms with Variance Reduction

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Extensions of Peer Prediction Incentive Mechanisms

Learning the intrinsic dynamics of spatio-temporal processes through Latent Dynamics Networks

Performing and Detecting Backdoor Attacks on Face Recognition Algorithms

Resource-Efficient Continual Learning for Personalized Online Seizure Detection

Leveraging Continuous Time to Understand Momentum When Training Diagonal Linear Networks

Meta-learning to address diverse Earth observation problems across resolutions

Randomized flexible GMRES with deflated restarting

A graph convolutional autoencoder approach to model order reduction for parametrized PDEs

Generalization and Personalization of Machine Learning for Multimodal Mobile Sensing in Everyday Life

Explainable Face Verification via Feature-Guided Gradient Backpropagation

Extensions of Peer Prediction Incentive Mechanisms

Learning the intrinsic dynamics of spatio-temporal processes through Latent Dynamics Networks

Performing and Detecting Backdoor Attacks on Face Recognition Algorithms

Resource-Efficient Continual Learning for Personalized Online Seizure Detection

Leveraging Continuous Time to Understand Momentum When Training Diagonal Linear Networks

Meta-learning to address diverse Earth observation problems across resolutions

Randomized flexible GMRES with deflated restarting

A graph convolutional autoencoder approach to model order reduction for parametrized PDEs

Generalization and Personalization of Machine Learning for Multimodal Mobile Sensing in Everyday Life

Explainable Face Verification via Feature-Guided Gradient Backpropagation