Real world examples of tree structures

Posted by Arec Barrwin on Stack Overflow See other posts from Stack Overflow or by Arec Barrwin
Published on 2009-02-23T13:37:45Z Indexed on 2010/04/19 16:23 UTC
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tree

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bst

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binary-trees

I'm looking for some examples of tree structures that are used in commercial/free software projects, modern or old. I can see examples on wikipedia, but I am looking for more concrete examples and how they're used. For example primary keys in databases are (from what I've read) stored in BST structure or a variation of the BST (feel free to correct me on this)

My question isn't limited Binary Search Trees (BSTs), it can include any variation such as red-black, AVL and so on.

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