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Fabricio Aparecido Breve

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#machine learning Preprint Oct 2026

Round-Trip KNN Clustering: multiscale hierarchical cluster detection on directed nearest-neighbour graphs

We introduce Round-Trip KNN Clustering (RTKNNC), a graph-based method for finding cluster structure at several neighbourhood scales without requiring the number of clusters in advance. Unlike approaches that first make a $k$-nearest-neighbour (KNN) graph undirected, RTKNNC keeps both directions of the neighbour relatio...

E. P. Marinho, C. Ranieri, Fabricio Aparecido Breve · 0 citations

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