Random tree

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In mathematics and computer science, a random tree is a tree or arborescence that is formed by a stochastic process. Types of random trees include:

  • Uniform spanning tree, a spanning tree of a given graph in which each different tree is equally likely to be selected
  • Random minimal spanning tree, spanning trees of a graph formed by choosing random edge weights and using the minimum spanning tree for those weights
  • Random binary tree, binary trees with a given number of nodes, formed by inserting the nodes in a random order or by selecting all possible trees uniformly at random
  • Random recursive tree, increasingly labelled trees, which can be generated using a simple stochastic growth rule.
  • Treap or randomized binary search tree, a data structure that uses random choices to simulate a random binary tree for non-random update sequences
  • Rapidly exploring random tree, a fractal space-filling pattern used as a data structure for searching high-dimensional spaces
  • Brownian tree, a fractal tree structure created by diffusion-limited aggregation processes
  • Random forest, a machine-learning classifier based on choosing random subsets of variables for each tree and using the most frequent tree output as the overall classification
  • Branching process, a model of a population in which each individual has a random number of children

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