Insul岛
发表于 2025-4-2 22:39:10
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进步
发表于 2025-4-3 00:41:07
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勤勉
发表于 2025-4-3 05:29:25
-Level Crossing Minimization Is ,-Hard for Treesquadratic time. We also show that the .-level crossing minimization problem for trees for an arbitrary number of levels is .-Hard. This result exposes a source of difficulty for algorithm designers that compounds earlier results relating to the 2-level crossing minimization problem for graphs.
lobster
发表于 2025-4-3 10:33:08
-Level Crossing Minimization Is ,-Hard for Treesquadratic time. We also show that the .-level crossing minimization problem for trees for an arbitrary number of levels is .-Hard. This result exposes a source of difficulty for algorithm designers that compounds earlier results relating to the 2-level crossing minimization problem for graphs.
inhumane
发表于 2025-4-3 12:45:46
Range-Aggregate Queries Involving Geometric Aggregation Operationsrsection, 2-d orthogonal segment intersection (with/without distance constraint) are revisited and we . the existing results for these problems. We also provide . solutions to some of these problems. This paper is the first attempt to provide dynamic solutions to problems involving geometric aggregation operations.