Skip to Main content Skip to Navigation
Preprints, Working Papers, ...

Optimal transport-based machine learning to match specific expression patterns in omics data

Abstract : We present two algorithms designed to learn a pattern of correspondence between two data sets in situations where it is desirable to match elements that exhibit a relationship belonging to a known parametric model. In the motivating case study, the challenge is to better understand micro-RNA (miRNA) regulation in the striatum of Huntington's disease (HD) model mice. The two data sets contain miRNA and messenger-RNA (mRNA) data, respectively, each data point consisting in a multi-dimensional profile. The biological hypothesis is that if a miRNA induces the degradation of a target mRNA or blocks its translation into proteins, or both, then the profile of the former should be similar to minus the profile of the latter (a particular form of affine relationship). The algorithms unfold in two stages. During the first stage, an optimal transport plan P and an optimal affine transformation are learned, using the Sinkhorn-Knopp algorithm and a mini-batch gradient descent. During the second stage, P is exploited to derive either several co-clusters or several sets of matched elements. We share codes that implement our algorithms. A simulation study illustrates how they work and perform. A brief summary of the real data application in the motivating case-study further illustrates the applicability and interest of the algorithms.
Document type :
Preprints, Working Papers, ...
Complete list of metadata
Contributor : Thi Thanh Yen NGUYEN Connect in order to contact the contributor
Submitted on : Monday, January 10, 2022 - 10:38:14 AM
Last modification on : Friday, August 5, 2022 - 11:55:51 AM


Files produced by the author(s)


  • HAL Id : hal-03293786, version 2
  • ARXIV : 2107.11192


Thi Thanh Yen Nguyen, Olivier Bouaziz, Warith Harchaoui, Christian Neri, Antoine Chambaz. Optimal transport-based machine learning to match specific expression patterns in omics data. 2022. ⟨hal-03293786v2⟩



Record views


Files downloads