Breaking the Reclustering Barrier in Centroid-based Deep Clustering

Fuente: arXiv
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Main Authors: Miklautz, Lukas, Klein, Timo, Sidak, Kevin, Leiber, Collin, Lang, Thomas, Shkabrii, Andrii, Tschiatschek, Sebastian, Plant, Claudia
Format: Preprint
Published: 2024
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author Miklautz, Lukas
Klein, Timo
Sidak, Kevin
Leiber, Collin
Lang, Thomas
Shkabrii, Andrii
Tschiatschek, Sebastian
Plant, Claudia
author_facet Miklautz, Lukas
Klein, Timo
Sidak, Kevin
Leiber, Collin
Lang, Thomas
Shkabrii, Andrii
Tschiatschek, Sebastian
Plant, Claudia
contents This work investigates an important phenomenon in centroid-based deep clustering (DC) algorithms: Performance quickly saturates after a period of rapid early gains. Practitioners commonly address early saturation with periodic reclustering, which we demonstrate to be insufficient to address performance plateaus. We call this phenomenon the "reclustering barrier" and empirically show when the reclustering barrier occurs, what its underlying mechanisms are, and how it is possible to Break the Reclustering Barrier with our algorithm BRB. BRB avoids early over-commitment to initial clusterings and enables continuous adaptation to reinitialized clustering targets while remaining conceptually simple. Applying our algorithm to widely-used centroid-based DC algorithms, we show that (1) BRB consistently improves performance across a wide range of clustering benchmarks, (2) BRB enables training from scratch, and (3) BRB performs competitively against state-of-the-art DC algorithms when combined with a contrastive loss. We release our code and pre-trained models at https://github.com/Probabilistic-and-Interactive-ML/breaking-the-reclustering-barrier .
format Preprint
id arxiv_https___arxiv_org_abs_2411_02275
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Breaking the Reclustering Barrier in Centroid-based Deep Clustering
Miklautz, Lukas
Klein, Timo
Sidak, Kevin
Leiber, Collin
Lang, Thomas
Shkabrii, Andrii
Tschiatschek, Sebastian
Plant, Claudia
Machine Learning
Artificial Intelligence
This work investigates an important phenomenon in centroid-based deep clustering (DC) algorithms: Performance quickly saturates after a period of rapid early gains. Practitioners commonly address early saturation with periodic reclustering, which we demonstrate to be insufficient to address performance plateaus. We call this phenomenon the "reclustering barrier" and empirically show when the reclustering barrier occurs, what its underlying mechanisms are, and how it is possible to Break the Reclustering Barrier with our algorithm BRB. BRB avoids early over-commitment to initial clusterings and enables continuous adaptation to reinitialized clustering targets while remaining conceptually simple. Applying our algorithm to widely-used centroid-based DC algorithms, we show that (1) BRB consistently improves performance across a wide range of clustering benchmarks, (2) BRB enables training from scratch, and (3) BRB performs competitively against state-of-the-art DC algorithms when combined with a contrastive loss. We release our code and pre-trained models at https://github.com/Probabilistic-and-Interactive-ML/breaking-the-reclustering-barrier .
title Breaking the Reclustering Barrier in Centroid-based Deep Clustering
topic Machine Learning
Artificial Intelligence
url https://arxiv.org/abs/2411.02275