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AbstractWe consider unimodular random rooted trees (URTs) and invariant forests in Cayley graphs. We show that URTs of bounded degree are the same as the law of the component of the root in an invariant percolation on a regular tree. We use this to give a new proof that URTs are sofic, a result of Elek.
Benjamini, Itai +2 more
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On random trees and forests [PDF]
The first talk at the session Random trees and random forests “Journée MAS” (27/08/2021) was presented by I. Kortchemski. After a general up-to-date introduction to local and scaling limits of Bienaymé trees (which are discrete branching trees), he ...
Contat Alice +4 more
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Optimal randomized classification trees [PDF]
This research has been financed in part by research projects EC H2020 MSCA RISE NeEDS (Grant agreement ID: 822214), FQM-329 and P18-FR-2369 (Junta de Andaluc\'ia), and PID2019-110886RB-I00 (Ministerio de Ciencia, Innovaci\'on y Universidades, Spain).
Blanquero, Rafael +3 more
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Profiles of random trees: plane-oriented recursive trees [PDF]
We summarize several limit results for the profile of random plane-oriented recursive trees. These include the limit distribution of the normalized profile, asymptotic bimodality of the variance, asymptotic approximations of the expected width and the ...
Hsien-Kuei Hwang
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Conditioned Galton-Watson trees do not grow [PDF]
An example is given which shows that, in general, conditioned Galton-Watson trees cannot be obtained by adding vertices one by one, while this can be done in some important but special cases, as shown by Luczak and Winkler.
Svante Janson
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Extremely randomized trees [PDF]
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Geurts, Pierre +2 more
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Random Records and Cuttings in Split Trees: Extended Abstract [PDF]
We study the number of records in random split trees on $n$ randomly labelled vertices. Equivalently the number of random cuttings required to eliminate an arbitrary random split tree can be studied.
Cecilia Holmgren
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Additive tree functionals with small toll functions and subtrees of random trees [PDF]
Many parameters of trees are additive in the sense that they can be computed recursively from the sum of the branches plus a certain toll function. For instance, such parameters occur very frequently in the analysis of divide-and-conquer algorithms. Here
Stephan Wagner
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On the spectral dimension of random trees [PDF]
We determine the spectral dimensions of a variety of ensembles of infinite trees. Common to the ensembles considered is that sample trees have a distinguished infinite spine at whose vertices branches can be attached according to some probability ...
Bergfinnur Durhuus +2 more
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Optimal Prefetching in Random Trees
We propose and analyze a model for optimizing the prefetching of documents, in the situation where the connection between documents is discovered progressively.
Kausthub Keshava +2 more
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