Definition:Labeled Tree
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Definition
A labeled tree is a finite tree (which may or may not be rooted) in which each node has attached to it a label.
These labels may be any symbol or other object that one can think of, but usually consist of one letter or symbol.
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The parent function is usually depicted by placing the ancestor above the child and connecting them with a line.
The various children of a node may also be considered to be in a particular order.
This is usually depicted by placing them in a left-to-right order.
Because of the intuitive clarity of these relations, labeled trees may be considered collations as basic as strings are.
However, because of the space limitations that most printed media have to take into account, it is usual that one quickly resorts to representing trees by strings in one way or another.
Also known as
The term labeled tree is rendered in non-American English as labelled tree.
Also see
- Results about labeled trees can be found here.
Sources
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