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arXiv · 1304.4327

Tree-Independent Dual-Tree Algorithms

Ryan R. Curtin·William B. March·Parikshit Ram·David V. Anderson·Alexander G. Gray·Charles L. Isbell Jr
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Abstract

Dual-tree algorithms are a widely used class of branch-and-bound algorithms. Unfortunately, developing dual-tree algorithms for use with different trees and problems is often complex and burdensome. We introduce a four-part logical split: the tree, the traversal, the point-to-point base case, and the pruning rule. We provide a meta-algorithm which allows development of dual-tree algorithms in a tree-independent manner and easy extension to entirely new types of trees. Representations are provided for five common algorithms; for k-nearest neighbor search, this leads to a novel, tighter pruning bound. The meta-algorithm also allows straightforward extensions to massively parallel settings.

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Ryan R. Curtin, William B. March, Parikshit Ram, David V. Anderson, Alexander G. Gray, Charles L. Isbell Jr. 2013-04-16. Tree-Independent Dual-Tree Algorithms. https://arxiv.org/abs/1304.4327

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