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Author

David Garc'ia-Soriano

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Jul 2026

Approximate Dual Separation for the Cluster LP: a 1.387 approximation for Correlation Clustering

We give a deterministic $(1.3865+\epsilon)$-approximation for correlation clustering on complete graphs, improving the previous best factor of $1.485+\epsilon$ of Cao et al. (STOC'24). Our first main contribution is an efficient weak separation oracle for the cluster-LP dual. Given signed vertex weights $q$, it either...

David Garc'ia-Soriano, A. Schohn · 2 citations

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