Results 11 to 20 of about 352,001 (275)

Nonparametric Machine Learning and Efficient Computation with Bayesian Additive Regression Trees: The BART R Package

open access: yesJournal of Statistical Software, 2021
In this article, we introduce the BART R package which is an acronym for Bayesian additive regression trees. BART is a Bayesian nonparametric, machine learning, ensemble predictive modeling method for continuous, binary, categorical and time-to-event ...
Rodney Sparapani   +2 more
doaj   +1 more source

Analysis of some statistics for increasing tree families [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2004
This paper deals with statistics concerning distances between randomly chosen nodes in varieties of increasing trees. Increasing trees are labelled rooted trees where labels along any branch from the root go in increasing order.
Alois Panholzer, Helmut Prodinger
doaj   +2 more sources

The # product in combinatorial Hopf algebras [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2011
We show that the # product of binary trees introduced by Aval and Viennot (2008) is in fact defined at the level of the free associative algebra, and can be extended to most of the classical combinatorial Hopf algebras.
Jean-Christophe Aval   +2 more
doaj   +1 more source

On trees, tanglegrams, and tangled chains [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2020
Tanglegrams are a class of graphs arising in computer science and in biological research on cospeciation and coevolution. They are formed by identifying the leaves of two rooted binary trees. The embedding of the trees in the plane is irrelevant for this
Sara Billey   +2 more
doaj   +1 more source

Binary Trees for Dependence Structure

open access: yesIEEE Access, 2020
In a data set with many categorical variables and several continuous valuables, the relationship between continuous random variables may differ from category to category for a given categorical variable.
Qingsong Shan, Qianning Liu
doaj   +1 more source

Tree-like tableaux [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2011
In this work we introduce and study tree-like tableaux, which are certain fillings of Ferrers diagrams in simple bijection with permutation tableaux and alternative tableaux.
Jean-Christophe Aval   +2 more
doaj   +1 more source

New Hopf Structures on Binary Trees [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2009
The multiplihedra $\mathcal{M}_{\bullet} = (\mathcal{M}_n)_{n \geq 1}$ form a family of polytopes originating in the study of higher categories and homotopy theory. While the multiplihedra may be unfamiliar to the algebraic combinatorics community, it is
Stefan Forcey   +2 more
doaj   +1 more source

Left and right length of paths in binary trees or on a question of Knuth [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2006
We consider extended binary trees and study the common right and left depth of leaf $j$, where the leaves are labelled from left to right by $0, 1, \ldots, n$, and the common right and left external pathlength of binary trees of size $n$.
Alois Panholzer
doaj   +1 more source

Decision Trees for Binary Subword-Closed Languages

open access: yesEntropy, 2023
In this paper, we study arbitrary subword-closed languages over the alphabet {0,1} (binary subword-closed languages). For the set of words L(n) of the length n belonging to a binary subword-closed language L, we investigate the depth of the decision ...
Mikhail Moshkov
doaj   +1 more source

Unbalancing Binary Trees

open access: yesCoRR, 2022
14 pages, 8 ...
openaire   +2 more sources

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