Search Results for author: Franck Picard

Found 4 papers, 3 papers with code

PCA for Point Processes

1 code implementation30 Apr 2024 Franck Picard, Vincent Rivoirard, Angelina Roche, Victor Panaretos

By treating point process realizations as random measures, we adopt a functional analysis perspective and propose a form of functional Principal Component Analysis (fPCA) for point processes.

Point Processes

A Probabilistic Graph Coupling View of Dimension Reduction

no code implementations31 Jan 2022 Hugues van Assel, Thibault Espinasse, Julien Chiquet, Franck Picard

Most popular dimension reduction (DR) methods like t-SNE and UMAP are based on minimizing a cost between input and latent pairwise similarities.

Dimensionality Reduction

Probabilistic Count Matrix Factorization for Single Cell Expression Data Analysis

2 code implementations30 Oct 2017 Ghislain Durif, Laurent Modolo, Jeff E. Mold, Sophie Lambert-Lacroix, Franck Picard

First, the expression dynamics (gene to gene variability) can be quantified more accurately, thanks to the measurement of lowly-expressed genes.

Methodology

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