BK-tree

（重定向自Bk tree）

A BK-tree is a metric tree suggested by Walter Austin Burkhard and Robert M. Keller specifically adapted to discrete metric spaces. For simplicity, let us consider integer discrete metric $d(x,y)$ . Then, BK-tree is defined in the following way. An arbitrary element a is selected as root node. The root node may have zero or more subtrees. The k-th subtree is recursively built of all elements b such that $d(a,b) = k$ . BK-trees can be used for approximate string matching in a dictionary .

单词	Bk tree
释义	Bk tree 英语百科 BK-tree （重定向自Bk tree） A BK-tree is a metric tree suggested by Walter Austin Burkhard and Robert M. Keller specifically adapted to discrete metric spaces. For simplicity, let us consider integer discrete metric $d(x,y)$ . Then, BK-tree is defined in the following way. An arbitrary element a is selected as root node. The root node may have zero or more subtrees. The k-th subtree is recursively built of all elements b such that $d(a,b) = k$ . BK-trees can be used for approximate string matching in a dictionary .
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