A Linear Time Algorithm for Finding ak-Tree Core |
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| Authors: | Akiyoshi Shioura Takeaki Uno |
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| Affiliation: | aDepartment of Mathematical and Computing Sciences, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro-ku, Tokyo, 152, Japan;bDepartment of Systems Science, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro-ku, Tokyo, 152, Japan |
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| Abstract: | ![]()
Given a tree containingnvertices, consider the sum of the distance between all vertices and ak-leaf subtree (subtree which contains exactlykleaves). Ak-tree core is ak-leaf subtree which minimizes the sum of the distances. In this paper, we propose a linear time algorithm for finding ak-tree core for a givenk. |
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