Concept
Mean
Related publications (32)
On the Strategyproofness of the Geometric Median
Rachid Guerraoui, Sadegh Farhadkhani, El Mahdi El Mhamdi, Le Nguyen Hoang
The geometric median, an instrumental component of the secure machine learning toolbox, is known to be effective when robustly aggregating models (or gradients), gathered from potentially malicious (or strategic) users. What is less known is the extent to ...
20233-Dimensional Fluid and White Matter Suppression Magnetic Resonance Imaging Sequence Accelerated With Compressed Sensing Improves Multiple Sclerosis Cervical Spinal Cord Lesion Detection Compared With Standard 2-Dimensional Imaging
Objectives Fluid and white matter suppression (FLAWS) is a recently proposed magnetic resonance sequence derived from magnetization-prepared 2 rapid acquisition gradient-echo providing 2 coregistered datasets with white matter- and cerebrospinal fluid-supp ...
LIPPINCOTT WILLIAMS & WILKINS2022Byzantine Fault-Tolerant Distributed Machine Learning with Norm-Based Comparative Gradient Elimination
This paper considers the Byzantine fault-tolerance problem in distributed stochastic gradient descent (D-SGD) method - a popular algorithm for distributed multi-agent machine learning. In this problem, each agent samples data points independently from a ce ...
IEEE COMPUTER SOC2021Finite beta effects on short wavelength ion temperature gradient modes
The electromagnetic effect is studied on the short wavelength branch of the ion temperature gradient mode in the linear regime for the first time using a global gyrokinetic model. The short wavelength ion temperature gradient mode growth rate is found to b ...
2020Fully automated detection, segmentation, and analysis of in vivo RPE single cells
Christophe Moser, Timothé Laforest, Laura Emmanuelle Kowalczuk, Florentino Luciano Caetano Dos Santos
Objective To develop a fully automated method of retinal pigmented epithelium (RPE) cells detection, segmentation and analysis based on in vivo cellular resolution images obtained with the transscleral optical phase imaging method (TOPI). Methods Fourteen ...
NATURE PUBLISHING GROUP2020Random time step probabilistic methods for uncertainty quantification in chaotic and geometric numerical integration
Assyr Abdulle, Giacomo Garegnani
A novel probabilistic numerical method for quantifying the uncertainty induced by the time integration of ordinary differential equations (ODEs) is introduced. Departing from the classical strategy to randomize ODE solvers by adding a random forcing term, ...
2020Global spatial analysis of toxic emissions to freshwater: operationalization for LCA
PurposeThere is increasing interest in using fate and exposure models to spatially differentiate the impacts of chemical emissions. This work aims at exploring the operationalization in life cycle assessment (LCA) of spatially differentiated models for tox ...
SPRINGER HEIDELBERG2019Computational Analysis of the Mutual Constraints between Single‐Cell Growth and Division Control Models
John McKinney, Neeraj Dhar, Ambroise Roger Vuaridel
Three models of division control are proposed to achieve cell size homeostasis: sizer, timer, and adder. However, few published studies of division control take into account the dynamics of single‐cell growth and most assume that single‐cell growth is expo ...
2019MATHICSE Technical Report : Random time step probabilistic methods for uncertainty quantification in chaotic and geometric numerical integration
Assyr Abdulle, Giacomo Garegnani
A novel probabilistic numerical method for quantifying the uncertainty induced by the time integration of ordinary differential equations (ODEs) is introduced. Departing from the classical strategy to randomize ODE solvers by adding a random forcing term, ...
MATHICSE2018Fréchet means in Wasserstein space
This work studies the problem of statistical inference for Fréchet means in the Wasserstein space of measures on Euclidean spaces, . This question arises naturally from the problem of separating amplitude and phase variation i ...
EPFL2017