Author

Christos Chatzis

OsloMet – Oslo Metropolitan UniversityORCID 0009-0002-9140-3819Unclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

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Bioinformatics· 2

Signature Assays, Organisms & Methods

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Research Focus:benchmarking· 2 Research Focus:dimensionality reduction· 2 Research Focus:differential expression· 1 Approach:matrix factorization· 1 Assay:metabolomics· 1 Assay:metagenomics· 1 Approach:statistical model· 1

Frequent Co-Authors

Evrim AcariD· 2 shared Morten Arendt RasmusseniD· 2 shared Age K. SmildeiD· 1 shared Ann‐Marie Malby SchoosiD· 1 shared Balázs ErdõsiD· 1 shared David HorneriD· 1 shared Jakob StokholmiD· 1 shared Jonathan ThorseniD· 1 shared

Activity by Year

2026-2026 · peak 2/yr

Co-Author Collaboration Network

9 top collaborators · 24 mutual co-author links

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2 shared papersBioinformatics

Evrim AcarORCID

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2 papers

Recent·Most cited

BioinformaticsBioinformaticsPeer-reviewedAug 31, 2026

Revealing Subject-Specific Temporal Patterns from Longitudinal Data

Christos Chatzis, David Horner, Rasmus Zier Bro…·Evrim Acar

This paper introduces coupled matrix factorizations to extract subject-specific temporal patterns from longitudinal data, showing improved insights in metabolomics and sensitization studies.

DOI 10.1093/bioinformatics/btag658

metabolomicsmatrix factorization

𝕏 PostBluesky

BioinformaticsPLoS Computational BiologyPeer-reviewedJul 6, 2026

Extracting host-specific developmental signatures from longitudinal microbiome data

Balázs Erdõs, Christos Chatzis, Jonathan Thorsen…·Evrim Acar

The paper introduces PARAFAC2 to model subject-specific temporal patterns in longitudinal microbiome data, outperforming CP in capturing individual variations and enabling replicable pattern discovery.

1 citation

metagenomicsstatistical model

𝕏 PostBluesky