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出 版 物:《SIAM JOURNAL ON COMPUTING》 (工业与应用数学会计算杂志)
年 卷 期:1993年第22卷第5期
页 面:976-993页
核心收录:
学科分类:07[理学] 070104[理学-应用数学] 0701[理学-数学] 0812[工学-计算机科学与技术(可授工学、理学学位)]
主 题:POINT DOMINANCE CHAINS COMPUTATIONAL GEOMETRY LOWER BOUND OPTIMAL ALGORITHM
摘 要:Given a two-dimensional point set rho, a chain C is a subset of rho in which for every two points one is dominated by the other. A k-chain is a subset of rho that can be partitioned into k-chains. The size of a k-chain is the total number of its points. A k-chain with maximum size, among all possible k-chains, is called a maximum k-chain. First geometric properties of k-chains are studied for an arbitrary k. Then a THETA(n log n)-time algorithm is presented for finding a maximum three-chain in a point set rho, where n = Absolute value of rho.