Search Results for author: Patrice Aknin

Found 9 papers, 0 papers with code

Model-based clustering with Hidden Markov Model regression for time series with regime changes

no code implementations25 Dec 2013 Faicel Chamroukhi, Allou Samé, Patrice Aknin, Gérard Govaert

Comparisons with existing approaches for time series clustering, including the stand EM for Gaussian mixtures, $K$-means clustering, the standard mixture of regression models and mixture of Hidden Markov Models, demonstrate the effectiveness of the proposed approach.

Clustering regression +2

A regression model with a hidden logistic process for signal parametrization

no code implementations25 Dec 2013 Faicel Chamroukhi, Allou Samé, Gérard Govaert, Patrice Aknin

A new approach for signal parametrization, which consists of a specific regression model incorporating a discrete hidden logistic process, is proposed.

regression

A regression model with a hidden logistic process for feature extraction from time series

no code implementations25 Dec 2013 Faicel Chamroukhi, Allou Samé, Gérard Govaert, Patrice Aknin

The parameters of the hidden logistic process, in the inner loop of the EM algorithm, are estimated using a multi-class Iterative Reweighted Least-Squares (IRLS) algorithm.

regression Time Series +1

Supervised learning of a regression model based on latent process. Application to the estimation of fuel cell life time

no code implementations25 Dec 2013 Raïssa Onanena, Faicel Chamroukhi, Latifa Oukhellou, Denis Candusso, Patrice Aknin, Daniel Hissel

This paper describes a pattern recognition approach aiming to estimate fuel cell duration time from electrochemical impedance spectroscopy measurements.

regression

Model-based clustering and segmentation of time series with changes in regime

no code implementations25 Dec 2013 Allou Samé, Faicel Chamroukhi, Gérard Govaert, Patrice Aknin

The proposed approach can also be regarded as a clustering approach which operates by finding groups of time series having common changes in regime.

Clustering Time Series +1

Modèle à processus latent et algorithme EM pour la régression non linéaire

no code implementations25 Dec 2013 Faicel Chamroukhi, Allou Samé, Gérard Govaert, Patrice Aknin

A non linear regression approach which consists of a specific regression model incorporating a latent process, allowing various polynomial regression models to be activated preferentially and smoothly, is introduced in this paper.

regression

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