PASS: Certified Subset Repair for Classical and Quantum Pairwise Constrained Clustering

Fuente: arXiv
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Autores principales: Chumpitaz-Flores, Pedro, Duong, My, Mao, Ying, Hua, Kaixun
Formato: Preprint
Publicado: 2026
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author Chumpitaz-Flores, Pedro
Duong, My
Mao, Ying
Hua, Kaixun
author_facet Chumpitaz-Flores, Pedro
Duong, My
Mao, Ying
Hua, Kaixun
contents Pairwise-constrained clustering incorporates side information through must-link (ML) and cannot-link (CL) relations between samples. While these constraints can improve cluster quality, they complicate optimization at scale and limit quantum and hybrid approaches through the size of the encoded problem. PASS is a scalable framework for pairwise-constrained k-means that concentrates optimization on a small working subset while updating remaining assignments through re-centering. Cannot-link feasibility under subset-restricted updates is formalized as a list-coloring problem on the induced constraint subgraph, yielding a checkable repair certificate with verifiable outcomes. The same subset restriction produces reduced classical subproblems and smaller quantum formulations, enabling a reduction-based hybrid evaluation under a simulation protocol. Infeasible constraint sets are handled explicitly: the pipeline returns a verifiable repair under stated conditions or reports residual conflicts under the same evaluation protocol. Across diverse benchmarks, PASS attains competitive SSE with lower runtime and returns solutions on instances where strong baselines do not finish within a fixed time budget.
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id arxiv_https___arxiv_org_abs_2601_20157
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle PASS: Certified Subset Repair for Classical and Quantum Pairwise Constrained Clustering
Chumpitaz-Flores, Pedro
Duong, My
Mao, Ying
Hua, Kaixun
Machine Learning
Emerging Technologies
Pairwise-constrained clustering incorporates side information through must-link (ML) and cannot-link (CL) relations between samples. While these constraints can improve cluster quality, they complicate optimization at scale and limit quantum and hybrid approaches through the size of the encoded problem. PASS is a scalable framework for pairwise-constrained k-means that concentrates optimization on a small working subset while updating remaining assignments through re-centering. Cannot-link feasibility under subset-restricted updates is formalized as a list-coloring problem on the induced constraint subgraph, yielding a checkable repair certificate with verifiable outcomes. The same subset restriction produces reduced classical subproblems and smaller quantum formulations, enabling a reduction-based hybrid evaluation under a simulation protocol. Infeasible constraint sets are handled explicitly: the pipeline returns a verifiable repair under stated conditions or reports residual conflicts under the same evaluation protocol. Across diverse benchmarks, PASS attains competitive SSE with lower runtime and returns solutions on instances where strong baselines do not finish within a fixed time budget.
title PASS: Certified Subset Repair for Classical and Quantum Pairwise Constrained Clustering
topic Machine Learning
Emerging Technologies
url https://arxiv.org/abs/2601.20157