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#machine learning Preprint Sep 2026

Scaffold-Constrained Subset Dynamic Programming for Exact SSE Clustering

Exact Euclidean \(K\)-means partitions \(n\) observations into \(K\) unlabelled clusters, but the unrestricted search is generally exponential. We use data-derived geometric graphs to precondition an exact subset dynamic program: as a result only connected vertex subsets are admitted as clusters, while sum-of-squared-e...

Y. Raykov, Max A. Little · 0 citations
Preprint Aug 2026

Information-Geometric Forward Policy Training in GFlowNets

This work formulate forward-policy training in GFlowNets through the information geometry of the induced trajectory sampler, and derives an exact decomposition of the trajectory Fisher into per-step conditional second moments, which clarifies when temporal score interactions vanish and when dense couplings remain under...

Y. Raykov, Rodrigo Veiga · 1 citation

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