Zobrazeno 1 - 10
of 995
pro vyhledávání: '"Chiquet, P"'
Count data analysis is essential across diverse fields, from ecology and accident analysis to single-cell RNA sequencing (scRNA-seq) and metagenomics. While log transformations are computationally efficient, model-based approaches such as the Poisson
Externí odkaz:
http://arxiv.org/abs/2411.08524
High-dimensional count data poses significant challenges for statistical analysis, necessitating effective methods that also preserve explainability. We focus on a low rank constrained variant of the Poisson log-normal model, which relates the observ
Externí odkaz:
http://arxiv.org/abs/2410.00476
Analyzing high-dimensional count data is a challenge and statistical model-based approaches provide an adequate and efficient framework that preserves explainability. The (multivariate) Poisson-Log-Normal (PLN) model is one such model: it assumes cou
Externí odkaz:
http://arxiv.org/abs/2405.14711
Autor:
Louise Bec, Romain Herber, Sébastien Bailly, Thi Hong Van Ngo, Renaud Tamisier, Jean-Louis Pépin, Florent Aptel, Christophe Chiquet
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-8 (2024)
Abstract The purpose of this study is to objectively assess by polysomnography total sleep time and sleep macrostructure in glaucomatous versus non-glaucomatous individuals after adjusting for possible confounding factors affecting the quality of sle
Externí odkaz:
https://doaj.org/article/8826ddae95b44ff5a37671e07c289249
Autor:
Bodinier, Barbara, Vuckovic, Dragana, Rodrigues, Sabrina, Filippi, Sarah, Chiquet, Julien, Chadeau-Hyam, Marc
In consensus clustering, a clustering algorithm is used in combination with a subsampling procedure to detect stable clusters. Previous studies on both simulated and real data suggest that consensus clustering outperforms native algorithms. We extend
Externí odkaz:
http://arxiv.org/abs/2304.13706
Autor:
Grisot, Rémi, Laurent, Pierre, Migliaccio, Claire, Dauvignac, Jean-Yves, Brulc, Mélanie, Chiquet, Camille, Caruana, Jean-Paul
Publikováno v:
IEEE Transactions on Radar Systems 1 (2023) 423-434
Monitoring the activity of the heart is important for diagnosing and preventing cardiovascular diseases. The electrocardiogram (ECG) is the gold standard for diagnosing such diseases. It monitors the heart's electrical activity, and while this is hig
Externí odkaz:
http://arxiv.org/abs/2301.08990
Autor:
Maren Ketterer, Petra Chiquet, Mara Esposito, Jaroslaw Sedzicki, Maxime Québatte, Christoph Dehio
Publikováno v:
mSphere, Vol 9, Iss 11 (2024)
ABSTRACT Brucellosis is a debilitating disease caused by the Gram-negative, facultative intracellular zoonotic pathogen Brucella. En route to its intracellular replicative niche, Brucella encounters various stressful environments that may compromise
Externí odkaz:
https://doaj.org/article/39c30d8314344070a526de477347b14c
Autor:
Jean Mura, Magali Ranchou-Peyruse, Marion Guignard, Marion Ducousso, Marie Larregieu, Marie-Pierre Isaure, Isabelle Le Hécho, Guilhem Hoareau, Marie Poulain, Mateus de Souza Buruti, Pierre Chiquet, Guilhem Caumette, Anélia Petit, Pierre Cézac, Anthony Ranchou-Peyruse
Publikováno v:
Frontiers in Microbiology, Vol 15 (2024)
If dihydrogen (H2) becomes a major part of the energy mix, massive storage in underground gas storage (UGS), such as in deep aquifers, will be needed. The development of H2 requires a growing share of H2 in natural gas (and its current infrastructure
Externí odkaz:
https://doaj.org/article/7a93bc33d9a94a198c58d8132634d2df
Most popular dimension reduction (DR) methods like t-SNE and UMAP are based on minimizing a cost between input and latent pairwise similarities. Though widely used, these approaches lack clear probabilistic foundations to enable a full understanding
Externí odkaz:
http://arxiv.org/abs/2201.13053
Autor:
Bodinier, Barbara, Filippi, Sarah, Nost, Therese Haugdahl, Chiquet, Julien, Chadeau-Hyam, Marc
Stability selection represents an attractive approach to identify sparse sets of features jointly associated with an outcome in high-dimensional contexts. We introduce an automated calibration procedure via maximisation of an in-house stability score
Externí odkaz:
http://arxiv.org/abs/2106.02521