Search Results for author: Andrei Zinovyev

Found 12 papers, 7 papers with code

Domain Adaptation Principal Component Analysis: base linear method for learning with out-of-distribution data

1 code implementation28 Aug 2022 Evgeny M Mirkes, Jonathan Bac, Aziz Fouché, Sergey V. Stasenko, Andrei Zinovyev, Alexander N. Gorban

Domain adaptation is a popular paradigm in modern machine learning which aims at tackling the problem of divergence (or shift) between the labeled training and validation datasets (source domain) and a potentially large unlabeled dataset (target domain).

Domain Adaptation

Computational challenges of cell cycle analysis using single cell transcriptomics

no code implementations10 Aug 2022 Alexander Chervov, Andrei Zinovyev

One of the major difficulties for existing packages is distinguishing between two patterns of cell cycle transcriptomic dynamics: normal and characteristic for embryonic stem cells (ESC), with the latter one shared by many cancer cell lines.

Quasi-orthogonality and intrinsic dimensions as measures of learning and generalisation

no code implementations30 Mar 2022 Qinghua Zhou, Alexander N. Gorban, Evgeny M. Mirkes, Jonathan Bac, Andrei Zinovyev, Ivan Y. Tyukin

Recent work by Mellor et al (2021) showed that there may exist correlations between the accuracies of trained networks and the values of some easily computable measures defined on randomly initialised networks which may enable to search tens of thousands of neural architectures without training.

Neural Architecture Search

Scikit-dimension: a Python package for intrinsic dimension estimation

1 code implementation6 Sep 2021 Jonathan Bac, Evgeny M. Mirkes, Alexander N. Gorban, Ivan Tyukin, Andrei Zinovyev

Dealing with uncertainty in applications of machine learning to real-life data critically depends on the knowledge of intrinsic dimensionality (ID).

Benchmarking

Local intrinsic dimensionality estimators based on concentration of measure

no code implementations31 Jan 2020 Jonathan Bac, Andrei Zinovyev

In this paper, we introduce new local estimators of ID based on linear separability of multi-dimensional data point clouds, which is one of the manifestations of concentration of measure.

Robust And Scalable Learning Of Complex Dataset Topologies Via Elpigraph

2 code implementations20 Apr 2018 Luca Albergante, Evgeny M. Mirkes, Huidong Chen, Alexis Martin, Louis Faure, Emmanuel Barillot, Luca Pinello, Alexander N. Gorban, Andrei Zinovyev

Large datasets represented by multidimensional data point clouds often possess non-trivial distributions with branching trajectories and excluded regions, with the recent single-cell transcriptomic studies of developing embryo being notable examples.

Astronomy

Basic and simple mathematical model of coupled transcription, translation and degradation

1 code implementation26 Apr 2012 Alexander N. Gorban, Annick Harel-Bellan, Nadya Morozova, Andrei Zinovyev

Synthesis of proteins is one of the most fundamental biological processes, which consumes a significant amount of cellular resources.

Molecular Networks

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