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Xin-Yi Yang

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Preprint Oct 2026

Safe Hypergraph Contraction via Capacity-Aware Repair Certificates

Multilevel partitioners shrink circuit hypergraphs through vertex contractions, yet a contraction that satisfies block capacity can still eliminate every optimal balanced bipartition. We develop certified safe coarsening (CSC) to identify contractions that preserve an optimum without computing that optimum. CSC certifi...

Yu-Zhou Deng, Xin-Yi Yang, Ke-Ren Zhu · 0 citations

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