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Concept

Relationships among probability distributions

Publications associées (26)

Analytic Determination of Scaling Parameters

Rüdiger Urbanke, Abdelaziz Amraoui

We show that the finite-length scaling parameters for irregular LDPC codes when used over the binary erasure channel can be computed without resorting to "covariance evolution''. We provide simple expressions that can be evaluated using solely the degree d ...

2006

Raptor Codes on Binary Memoryless Symmetric Channels

Mohammad Amin Shokrollahi, Seyed Omid Etesami

In this paper, we will investigate the performance of Raptor codes on arbitrary binary input memoryless symmetric channels (BIMSCs). In doing so, we generalize some of the results that were proved before for the erasure channel. We will generalize the stab ...

2006

Measurement of edge electrostatic turbulence in the TCV tokamak plasma boundary

Jan Horacek

Almost since the first density profile measurements were made in the scrape-off layer (SOL) of the early tokamaks, it has been recognized that the rate of particle transport perpendicular to magnetic surfaces exceeds that expected on the basis of classical ...

EPFL2006

Self-similar density turbulence in the TCV tokamak scrape-off layer

Jonathan Graves, Richard Pitts, Jan Horacek

Plasma fluctuations in the scrape-off layer (SOL) of the TCV tokamak exhibit statistical properties which are universal across a broad range of discharge conditions. Electron density fluctuations, from just inside the magnetic separatrix to the plasma-wall ...

2005

Forensic automatic speaker recognition using Bayesian interpretation and statistical compensation for mismatched conditions

Anil Alexander

Nowadays, state-of-the-art automatic speaker recognition systems show very good performance in discriminating between voices of speakers under controlled recording conditions. However, the conditions in which recordings are made in investigative activities ...

EPFL2005

Propriétés hors-équilibre d'une paroi adiabatique

Séverine Pache

We study the evolution of a system composed of N non-interacting particles of mass m distributed in a cylinder of length L. The cylinder is separated into two parts by an adiabatic piston of a mass M ≫ m. The length of the cylinder is a fix paramete ...

EPFL2004