Publications related to Statistical properties of electrostatic turbulence in toroidal magnetized plasmas

A birth-death-migration model for life in astrophysical environments

To assess the number of life-bearing worlds in astrophysical environments, it is necessary to take the intertwined processes of abiogenesis (birth), extinction (death), and transfer of life (migration) into account. We construct a mathematical model that i ...

OXFORD UNIV PRESS2021

Distributionally Robust Optimization with Markovian Data

Daniel Kuhn, Mengmeng Li, Tobias Sutter

We study a stochastic program where the probability distribution of the uncertain problem parameters is unknown and only indirectly observed via finitely many correlated samples generated by an unknown Markov chain with d states. We propose a data-driven d ...

2021

On the numerical simulation of a confined cavitating tip leakage vortex under geometrical and operational uncertainties

Mohamed Farhat

The effects of operational and geometrical uncertainties on Tip Leakage Vortex (TLV) characteristics are investigated in the current research. Geometrical uncertainties are comprised of manufacturing tolerances or gradual geometry degradation over the time ...

PERGAMON-ELSEVIER SCIENCE LTD2021

Efficient ensemble summaries are inversely related to visual crowding

Michael Herzog, David Pascucci, Yury Markov, Natalia Tiurina

Visual crowding is the inability to perceive properly peripheral stimuli within clutter. Previous work has shown that crowding is affected by perceptual grouping: when the flankers do not group with the target, crowding decreases, leading to uncrowding. Ty ...

2021

A numerical study of the statistics of roughness parameters for fluctuating interfaces

Elisabeth Agoritsas

Self-affine rough interfaces are ubiquitous in experimental systems, and display characteristic scaling properties as a signature of the nature of disorder in their supporting medium, i.e. of the statistical features of its heterogeneities. Different metho ...

2021

Fast ion transport phenomena in turbulent toroidal plasmas

Fabian Manke

In the field of plasma physics, suprathermal ions are encountered e.g. in astrophysical jets, the solar wind, as well as fusion plasmas, where they originate from neutral beam injection or fusion reactions. One aspect of shared interest with astrophysical ...

EPFL2020

Global turbulence features across marginality and non-local pedestal-core interactions

Olivier Sauter, Laurent Villard, Stephan Brunner, Emmanuel Lanti, Alberto Bottino, Ben McMillan, Noé Thomas Elie Ohana

Spatially non-local aspects of turbulent transport in tokamak plasmas are examined with global gyrokinetic simulations using the ORB5 code. Inspired by very accurate measurements in the TCV tokamak in L-mode, we initialise plasma profiles with constant log ...

2019

Statistical Aspects of Wasserstein Distances

Victor Panaretos, Yoav Zemel

Wasserstein distances are metrics on probability distributions inspired by the problem of optimal mass transportation. Roughly speaking, they measure the minimal effort required to reconfigure the probability mass of one distribution in order to recover th ...

ANNUAL REVIEWS2019

Does desorption affect the length distributions of nanowires?

Anna Fontcuberta i Morral, Wonjong Kim, Vladimir Dubrovskii, Jelena Vukajlovic Plestina

State-of-the art models for statistical properties within the nanowire ensembles consider influx of precursors, reflection and surface diffusion of adatoms. These models predict a delay in the nanowire growth start and the evolution toward an asymmetric le ...

2019

The stochastic heat equation: hitting probabilities and the probability density function of the supremum via Malliavin calculus

Fei Pu

In this thesis, we study systems of linear and/or non-linear stochastic heat equations and fractional heat equations in spatial dimension

1

driven by space-time white noise. The main topic is the study of hitting probabilities for the solutions to these ...

EPFL2018

Statistical properties of electrostatic turbulence in toroidal magnetized plasmas

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A birth-death-migration model for life in astrophysical environments

Distributionally Robust Optimization with Markovian Data

On the numerical simulation of a confined cavitating tip leakage vortex under geometrical and operational uncertainties

Efficient ensemble summaries are inversely related to visual crowding

A numerical study of the statistics of roughness parameters for fluctuating interfaces

Fast ion transport phenomena in turbulent toroidal plasmas

Global turbulence features across marginality and non-local pedestal-core interactions

Statistical Aspects of Wasserstein Distances

Does desorption affect the length distributions of nanowires?

The stochastic heat equation: hitting probabilities and the probability density function of the supremum via Malliavin calculus

Distributionally Robust Optimization with Markovian Data

A birth-death-migration model for life in astrophysical environments

On the numerical simulation of a confined cavitating tip leakage vortex under geometrical and operational uncertainties

Fast ion transport phenomena in turbulent toroidal plasmas

A numerical study of the statistics of roughness parameters for fluctuating interfaces

Statistical Aspects of Wasserstein Distances

The stochastic heat equation: hitting probabilities and the probability density function of the supremum via Malliavin calculus

Efficient ensemble summaries are inversely related to visual crowding

Does desorption affect the length distributions of nanowires?

Global turbulence features across marginality and non-local pedestal-core interactions