Publications associées à Cluster sampling

Multitask Diffusion Adaptation Over Asynchronous Networks

The multitask diffusion LMS is an efficient strategy to simultaneously infer, in a collaborative manner, multiple parameter vectors. Existing works on multitask problems assume that all agents respond to data synchronously. In several applications, agents ...

IEEE2016

Generalized Poisson Summation Formula for Tempered Distributions

Michaël Unser, Quy Ha Nguyen

The Poisson summation formula (PSF), which relates the sampling of an analog signal with the periodization of its Fourier transform, plays a key role in the classical sampling theory. In its current forms, the formula is only applicable to a limited class ...

IEEE2015

Analysing the distribution of walking in the Swiss population

Vincent Kaufmann, Emmanuel Pierre Jean Ravalet, Derek Pierre Christie

In many countries including Switzerland, public policy encourages people to walk for reasons linked to health, the environment, and transport. However, the distribution of walking in the population is not known. People who walk great distances have not bee ...

2015

Big walkers over non-walking drivers: a walking-related metric for evaluating the success of transportation and public health policies

Vincent Kaufmann, Emmanuel Pierre Jean Ravalet, Derek Pierre Christie

From the point of view of public health and the environment, it can be argued that people who spontaneously walk great distances display a desirable behaviour, whereas those who drive a car without any walking in public space do not. A suggested metric can ...

2015

Random sampling of bandlimited signals on graphs

Pierre Vandergheynst, Rémi Gribonval, Gilles Puy, Nicolas Tremblay

We study the problem of sampling

k

-bandlimited signals on graphs. We propose two sampling strategies that consist in selecting a small subset of nodes at random. The first strategy is non-adaptive, \ie, independent of the graph structure, and its perform ...

2015

Height-resolved quantification of microstructure and texture in polycrystalline thin films using TEM orientation mapping

Cécile Hébert, Duncan Thomas Lindsay Alexander, Arthur Brian Aebersold

A method is presented for the quantitative investigation of microstructure and texture evolution in polycrystalline thin films based on in-plane automated crystal orientation mapping in transmission electron microscopy, from the substrate up. To demonstrat ...

Elsevier Science Bv2015

A Methodology for Global Sensitivity Analysis for Time-Dependent Code Output Applied to Reflood Simulation in TRACE

Andreas Pautz, Damar Canggih Wicaksono, Omar Zerkak

Understanding properly the impact of model parameters and their interactions on the predictions is required for an appropriate model assessment. For simulation of reflooding following a LOCA, this requirement is justified because the important parameters a ...

2015

Full-wavefield modeling and reverse time migration of laser ultrasound data: A feasibility study

Thomas Emmanuel Blum

Laser ultrasound (LU) data acquired on cylindrical core samples effectively probe the physical properties of geologic materials. Although most LU analyses focus on estimating and inverting traveltimes of direct arrivals, it is important to recognize that L ...

2015

MATHICSE Technical Report : Discrete least-squares approximations over optimized downward closed polynomial spaces in arbitrary dimension

Fabio Nobile, Giovanni Migliorati

We analyze the accuracy of the discrete least-squares approximation of a function u in multivariate polynomial spaces

P_\Lambda := span\{y \mapsto y^\nu | \nu \in \Lambda\}

with

\Lambda\subset N_0^d

over the domain

\Gamma := [-1,1]^d

, based on the sa ...

MATHICSE2015

What's the Frequency, Kenneth?: Sublinear Fourier Sampling Off the Grid

Volkan Cevher, Yen-Huan Li

We design a sublinear Fourier sampling algorithm for a case of sparse off-grid frequency recovery. These are signals with the form ; i.e., exponential polynomials with a noise term. The frequencies satisfy and for some . We design a sublinear time randomiz ...

Springer Verlag2015

Cluster sampling

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Multitask Diffusion Adaptation Over Asynchronous Networks

Generalized Poisson Summation Formula for Tempered Distributions

Analysing the distribution of walking in the Swiss population

Big walkers over non-walking drivers: a walking-related metric for evaluating the success of transportation and public health policies

Random sampling of bandlimited signals on graphs

Height-resolved quantification of microstructure and texture in polycrystalline thin films using TEM orientation mapping

A Methodology for Global Sensitivity Analysis for Time-Dependent Code Output Applied to Reflood Simulation in TRACE

Full-wavefield modeling and reverse time migration of laser ultrasound data: A feasibility study

MATHICSE Technical Report : Discrete least-squares approximations over optimized downward closed polynomial spaces in arbitrary dimension

What's the Frequency, Kenneth?: Sublinear Fourier Sampling Off the Grid

Generalized Poisson Summation Formula for Tempered Distributions

Analysing the distribution of walking in the Swiss population

Multitask Diffusion Adaptation Over Asynchronous Networks

Big walkers over non-walking drivers: a walking-related metric for evaluating the success of transportation and public health policies

Random sampling of bandlimited signals on graphs

Height-resolved quantification of microstructure and texture in polycrystalline thin films using TEM orientation mapping

A Methodology for Global Sensitivity Analysis for Time-Dependent Code Output Applied to Reflood Simulation in TRACE

Full-wavefield modeling and reverse time migration of laser ultrasound data: A feasibility study

What's the Frequency, Kenneth?: Sublinear Fourier Sampling Off the Grid

MATHICSE Technical Report : Discrete least-squares approximations over optimized downward closed polynomial spaces in arbitrary dimension