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KMD clustering: Robust generic clustering of biological data

Aviv Zelig, Noam Kaplan
doi: https://doi.org/10.1101/2020.10.04.325233
Aviv Zelig
1Data Science & Engineering Program, Faculty of Industrial Engineering & Management, Technion - Israel Institute of Technology
2Department of Physiology, Biophysics & Systems Biology, Rappaport Faculty of Medicine, Technion – Israel Institute of Technology
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Noam Kaplan
2Department of Physiology, Biophysics & Systems Biology, Rappaport Faculty of Medicine, Technion – Israel Institute of Technology
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  • For correspondence: noam.kaplan@technion.ac.il
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Abstract

The challenges of clustering noisy high-dimensional biological data have spawned advanced clustering algorithms that are tailored for specific subtypes of biological datatypes. However, the performance of such methods varies greatly between datasets, they require post hoc tuning of cryptic hyperparameters, and they are often not transferable to other types of data. Here we present a novel generic clustering approach called k minimal distances (KMD) clustering, based on a simple generalization of single and average linkage hierarchical clustering. We show how a generalized silhouette-like function is predictive of clustering accuracy and exploit this property to eliminate the main hyperparameter k. We evaluated KMD clustering on standard simulated datasets, simulated datasets with high noise added, mass cytometry datasets and scRNA-seq datasets. When compared to standard generic and state-of-the-art specialized algorithms, KMD clustering’s performance was consistently better or comparable to that of the best algorithm on each of the tested datasets.

Competing Interest Statement

The authors have declared no competing interest.

Footnotes

  • https://github.com/KaplanLab/KMDHierarchicalClustering

Copyright 
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC-ND 4.0 International license.
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Posted October 04, 2020.
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KMD clustering: Robust generic clustering of biological data
Aviv Zelig, Noam Kaplan
bioRxiv 2020.10.04.325233; doi: https://doi.org/10.1101/2020.10.04.325233
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KMD clustering: Robust generic clustering of biological data
Aviv Zelig, Noam Kaplan
bioRxiv 2020.10.04.325233; doi: https://doi.org/10.1101/2020.10.04.325233

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