Results 61 to 70 of about 5,579,561 (370)

Random Intersection Trees

open access: yesJournal of Machine Learning Research, 2013
23 pages, 4 ...
Shah, RD, Meinshausen, N
openaire   +4 more sources

A simple and effective approach to quantitatively characterize structural complexity

open access: yesScientific Reports, 2021
This study brings insight into interpreting forest structural diversity and explore the classification of individuals according to the distribution of the neighbours in natural forests. Natural forest communities with different latitudes and distribution
Gongqiao Zhang   +3 more
doaj   +1 more source

Random real trees [PDF]

open access: yesAnnales de la Faculté des sciences de Toulouse : Mathématiques, 2009
We survey recent developments about random real trees, whose prototype is the Continuum Random Tree (CRT) introduced by Aldous in 1991. We briefly explain the formalism of real trees, which yields a neat presentation of the theory and in particular of the relations between discrete Galton-Watson trees and continuous random trees.
openaire   +2 more sources

Simply generated trees, conditioned Galton―Watson trees, random allocations and condensation: Extended abstract [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2012
We give a unified treatment of the limit, as the size tends to infinity, of random simply generated trees, including both the well-known result in the standard case of critical Galton-Watson trees and similar but less well-known results in the other ...
Svante Janson
doaj   +1 more source

Stable trees as mixings of inhomogeneous continuum random trees [PDF]

open access: yesarXiv, 2022
It has been claimed in Aldous, Miermont and Pitman [PTRF, 2004] that all L\'evy trees are mixings of inhomogeneous continuum random trees. We give a rigorous proof of this claim in the case of a stable branching mechanism, relying on a new procedure for recovering the tree distance from the graphical spanning trees that works simultaneously for stable ...
arxiv  

General Edgeworth expansions with applications to profiles of random trees [PDF]

open access: yes, 2016
We prove an asymptotic Edgeworth expansion for the profiles of certain random trees including binary search trees, random recursive trees and plane-oriented random trees, as the size of the tree goes to infinity.
Z. Kabluchko   +2 more
semanticscholar   +1 more source

The multiplicative coalescent, inhomogeneous continuum random trees, and new universality classes for critical random graphs [PDF]

open access: yesProbability theory and related fields, 2015
One major open conjecture in the area of critical random graphs, formulated by statistical physicists, and supported by a large amount of numerical evidence over the last decade (Braunstein et al. in Phys Rev Lett 91(16):168701, 2003; Wu et al.
S. Bhamidi, R. Hofstad, S. Sen
semanticscholar   +1 more source

Limit laws for two distance-based indices in random recursive tree models

open access: yesActa Universitatis Sapientiae: Informatica, 2022
In this paper, we derive several results related to total path length and Sackin index in two classes of random recursive trees. A limiting distribution of the normalized version of the Sackin index is given by the contraction method in random recursive ...
Naderi Sarkoat   +2 more
doaj   +1 more source

Random trees and applications [PDF]

open access: yesProbability Surveys, 2005
We discuss several connections between discrete and continuous random trees. In the discrete setting, we focus on Galton-Watson trees under various conditionings. In particular, we present a simple approach to Aldous' theorem giving the convergence in distribution of the contour process of conditioned Galton-Watson trees towards the normalized Brownian
openaire   +5 more sources

Local extrema in random trees

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2005
The number of local maxima (resp., local minima) in a tree T∈𝒯n rooted at r∈[n] is denoted by Mr(T) (resp., by mr(T)). We find exact formulas as rational functions of n for the expectation and variance of M1(T) and mn(T) when T∈𝒯n is chosen randomly ...
Lane Clark
doaj   +1 more source

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