Search Results for author: Nicolas Le Bihan

Found 5 papers, 4 papers with code

Two-way kernel matrix puncturing: towards resource-efficient PCA and spectral clustering

1 code implementation24 Feb 2021 Romain Couillet, Florent Chatelain, Nicolas Le Bihan

The article introduces an elementary cost and storage reduction method for spectral clustering and principal component analysis.

Clustering

Hidden Markov chains and fields with observations in Riemannian manifolds

no code implementations11 Jan 2021 Salem Said, Nicolas Le Bihan, Jonathan H. Manton

Hidden Markov chain, or Markov field, models, with observations in a Euclidean space, play a major role across signal and image processing.

Statistics Theory Statistics Theory

A complete framework for linear filtering of bivariate signals

1 code implementation7 Feb 2018 Julien Flamant, Pierre Chainais, Nicolas Le Bihan

A complete framework for the linear time-invariant (LTI) filtering theory of bivariate signals is proposed based on a tailored quaternion Fourier transform.

Spectral analysis of stationary random bivariate signals

1 code implementation19 Mar 2017 Julien Flamant, Nicolas Le Bihan, Pierre Chainais

This spectral density can be meaningfully interpreted in terms of frequency-dependent polarization attributes.

Methodology

Time-frequency analysis of bivariate signals

1 code implementation8 Sep 2016 Julien Flamant, Nicolas Le Bihan, Pierre Chainais

The resulting spectrograms and scalograms provide meaningful representations of both the time-frequency and geometrical/polarization content of the signal.

Methodology

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