Results 81 to 90 of about 68,741 (157)

Comparing Leaf and Root Insertion

open access: yesSouth African Computer Journal, 2010
We consider two ways of inserting a key into a binary search tree: leaf insertion which is the standard method, and root insertion which involves additional rotations.
Jaco Geldenhuys, Brink van der Merwe
doaj  

Lossless Compression of Binary Trees with Correlated Vertex Names. [PDF]

open access: yesIEEE Trans Inf Theory, 2018
Magner A, Turowski K, Szpankowski W.
europepmc   +1 more source

The geometry of independence tree models with hidden variables [PDF]

open access: yes, 2010
In this paper we investigate the geometry of undirected discrete graphical models of trees when all the variables in the system are binary, where leaves represent the observable variables and where the inner nodes are unobserved.
Zwiernik, Piotr, Smith, J. Q.
core  

Generation of Unordered Binary Trees

open access: yes, 2004
International audienceA binary unordered tree is a tree where each internal node has two children and the relative order of the subtrees of a node is not important (i.e.
Effantin, Brice
core   +2 more sources

Iterative Formulas for Enumerating Binary Trees

open access: yes
Enumeration is an important aspect for combinatorial properties of binary trees. Traditional solutions for enumerating binary trees are expressed by algorithms and most of them are recursive. In this paper, we give our solutions by iterative formulas for
ウシジマ, カズオ   +3 more
core  

Untangling binary trees via rotations

open access: yes, 2008
In this paper we present a polynomial time algorithm for finding the shortest sequence of rotations that converts one binary tree into another when both binary trees are of a restricted form.
Joan M. Lucas
core  

Characterization of binary trees

open access: yes
In "Level Number Sequences for Trees" Flagotet and Prodinger investigate the problem of counting the number of level number sequences associated to binary trees of $n$ binary nodes. I convert this problem into terms of exterior nodes or "leaves" and leaf
Brandstetter, Griffin
core  

Enumeration of Binary Trees and Universal Types*

open access: yes, 2004
Binary unlabeled ordered trees (further called binary trees) were studied at leastsince Euler, who enumerated them. The number of such trees with n nodes is nowknown as the Catalan number. Over the years various interesting questions about the statistics

core  

Phylo2Vec: A Vector Representation for Binary Trees. [PDF]

open access: yesSyst Biol
Penn MJ   +5 more
europepmc   +1 more source

Pseudorandom binary functions on rooted plane trees

open access: yes, 2012
International audienceIn an earlier paper the authors considered r-almost s-uniform trees, i.e. rooted planar trees T such that the root has r successors, and every other vertex has s suc- cessors.
Hubert, Pascal   +2 more
core  

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