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- W2951154109 abstract "We develop data structures for dynamic closest pair problems with arbitrary (not necessarily geometric) distance functions, based on a technique previously used by the author for Euclidean closest pairs. We show how to insert and delete objects from an n-object set, maintaining the closest pair, in O(n log n) time per update and O(n) space. With quadratic space, we can instead use a quadtree-like structure to achieve an optimal time bound, O(n) per update. We apply these data structures to hierarchical clustering, greedy matching, and TSP heuristics, and discuss other potential applications in machine learning, Grobner bases, and local improvement algorithms for partition and placement problems. Experiments show our new methods to be faster in practice than previously used heuristics." @default.
- W2951154109 created "2019-06-27" @default.
- W2951154109 creator A5048574995 @default.
- W2951154109 date "1998-01-01" @default.
- W2951154109 modified "2023-09-27" @default.
- W2951154109 title "Fast hierarchical clustering and other applications of dynamic closest pairs" @default.
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- W2951154109 doi "https://doi.org/10.5555/314613.315030" @default.
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