Dependence and phase changes in random m‐ary search trees
Dependence and phase changes in random m‐ary search trees
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随机玛丽搜索树中的依赖性和相位变化
DOI:
10.1002/rsa.20659
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发表时间:
2017
影响因子:
1
通讯作者:
R. Neininger
中科院分区:
文献类型:
--
作者:
R. Neininger
We study the joint asymptotic behavior of the space requirement and the total path length (either summing over all root‐key distances or over all root‐node distances) in randomm‐ary search trees. The covariance turns out to exhibit a change of asymptotic behavior: it is essentially linear when , but becomes of higher order when . Surprisingly, the corresponding asymptotic correlation coefficient tends to zero when , but is periodically oscillating for largerm, and we also prove asymptotic independence when . Such a less anticipated phenomenon is not exceptional and our results can be extended in two directions: one for more general shape parameters, and the other for other classes of random log‐trees such as fringe‐balanced binary search trees and quadtrees. The methods of proof combine asymptotic transfer for the underlying recurrence relations with the contraction method. © 2016 Wiley Periodicals, Inc. Random Struct. Alg., 50, 353–379, 2017
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DOI:
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发表时间:
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作者:
Margarete Knape;Ralph Neininger;Margarete Knapeand
通讯作者:
Margarete Knapeand
DOI:
10.1016/0020-0190(87)90215-8
发表时间:
1987
期刊:
Inf. Process. Lett.
影响因子:
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作者:
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通讯作者:
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DOI:
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2004
期刊:
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作者:
Ralph Neininger;L. Rüschendorf
通讯作者:
L. Rüschendorf
DOI:
10.1002/rsa.3240070203
发表时间:
1995
期刊:
Random Struct. Algorithms
影响因子:
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作者:
P. Flajolet;G. Labelle;Louise Laforest;B. Salvy
通讯作者:
B. Salvy
DOI:
10.1088/0305-4470/35/32/101
发表时间:
2002
期刊:
ArXiv
影响因子:
--
作者:
D. Dean;S. Majumdar
通讯作者:
S. Majumdar