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» The Path Length of Binary Trees
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FODO
1989
Springer
268views Algorithms» more  FODO 1989»
13 years 9 months ago
The Path Length of Binary Trees
We further refine the bounds on the path length of binary trees of a given size by considering not only the size of a binary tree, but also its height and fringe thickness (the d...
Rolf Klein, Derick Wood
ALGORITHMICA
2006
74views more  ALGORITHMICA 2006»
13 years 5 months ago
On the Number of t-Ary Trees with a Given Path Length
We show that the number of t-ary trees with path length equal to p is t h(t-1) tp log2 p(1+o(1)) , where h(x)=-x log2 x-(1-x) log2(1-x) is the binary entropy function. Besides its...
Gadiel Seroussi
CORR
2011
Springer
215views Education» more  CORR 2011»
13 years 8 days ago
The total path length of split trees
We consider the model of random trees introduced by Devroye [SIAM J Comput 28, 409– 432, 1998]. The model encompasses many important randomized algorithms and data structures. T...
Nicolas Broutin, Cecilia Holmgren
CPC
1999
105views more  CPC 1999»
13 years 5 months ago
Total Path Length For Random Recursive Trees
Total path length, or search cost, for a rooted tree is defined as the sum of all root-to-node distances. Let Tn be the total path length for a random recursive tree of order n. M...
Robert P. Dobrow, James Allen Fill
APPROX
2008
Springer
245views Algorithms» more  APPROX 2008»
13 years 7 months ago
Approximating Optimal Binary Decision Trees
Abstract. We give a (ln n + 1)-approximation for the decision tree (DT) problem. An instance of DT is a set of m binary tests T = (T1, . . . , Tm) and a set of n items X = (X1, . ....
Micah Adler, Brent Heeringa