no code implementations • 3 Apr 2018 • Stephane Chretien, Christophe Guyeux, Zhen-Wai Olivier HO
This paper studies the complexity of the stochastic gradient algorithm for PCA when the data are observed in a streaming setting.
no code implementations • 25 Jun 2017 • Wiem Elghazel, Kamal Medjaher, Nourredine Zerhouni, Jacques Bahi, Ahamd Farhat, Christophe Guyeux, Mourad Hakem
The aim of this article is ($1$) to show that random forests are relevant in this context, due to their flexibility and robustness, and ($2$) to provide first examples of use of this method for diagnostics based on data provided by a wireless sensor network.
no code implementations • 25 Jun 2017 • Anthony Tannoury, Rony Darazi, Christophe Guyeux, Abdallah Makhoul
In this research work, we propose to use the disparity map that is computed from two or multiple images, in order to monitor the depth information in an object or event under surveillance using WMSN.
no code implementations • 25 Jun 2017 • Régis Garnier, Christophe Guyeux, Stéphane Chrétien
In this paper, we present a toolbox for a specific optimization problem that frequently arises in bioinformatics or genomics.
no code implementations • 25 Jun 2017 • Reem Alsrraj, Bassam AlKindy, Christophe Guyeux, Laurent Philippe, Jean-François Couchot
The number of complete chloroplastic genomes increases day after day, making it possible to rethink plants phylogeny at the biomolecular era.
no code implementations • 31 Aug 2016 • Bassam AlKindy, Bashar Al-Nuaimi, Christophe Guyeux, Jean-François Couchot, Michel Salomon, Reem Alsrraj, Laurent Philippe
Considering a subset of close plant species defined according to their chloroplasts, the phylogenetic tree that can be inferred by their core genes is not necessarily well supported, due to the possible occurrence of problematic genes (i. e., homoplasy, incomplete lineage sorting, horizontal gene transfers, etc.)
no code implementations • 21 Aug 2016 • Jacques M. Bahi, Jean-François Couchot, Christophe Guyeux, Michel Salomon
The purpose of this paper is to establish, based on a rigorous theoretical framework, an equivalence between chaotic iterations according to Devaney and a particular class of neural networks.
2 code implementations • 25 May 2016 • Jean-François Couchot, Raphaël Couturier, Christophe Guyeux, Michel Salomon
For the past few years, in the race between image steganography and steganalysis, deep learning has emerged as a very promising alternative to steganalyzer approaches based on rich image models combined with ensemble classifiers.
Multimedia
no code implementations • 20 Apr 2015 • Bassam AlKindy, Christophe Guyeux, Jean-François Couchot, Michel Salomon, Christian Parisod, Jacques M. Bahi
The amount of completely sequenced chloroplast genomes increases rapidly every day, leading to the possibility to build large scale phylogenetic trees of plant species.
no code implementations • 17 Dec 2014 • Bassam AlKindy, Christophe Guyeux, Jean-François Couchot, Michel Salomon, Jacques M. Bahi
More precisely, we proposed to use genes names, sequence similarities, or both, insured either from NCBI or from DOGMA annotation tools.