radix tree
compact prefix tree

The successor/predecessor operations of radix trees are also not implemented by hash tables.

Another approach is through the use of an indexed lookup method, which uses a constructed radix tree.

A common extension of radix trees uses two colors of nodes, 'black' and 'white'.

Radix trees support insertion, deletion, and searching operations.

It is thus a radix tree (more specifically, a Patricia tree) for the suffixes of .

As mentioned, radix trees are useful for constructing associative arrays with keys that can be expressed as strings.

Radix trees have worst-case O(k) insertion and deletion.

The HAT-trie is a radix tree based cache-conscious data structure that offers efficient string storage and retrieval, and ordered iterations.

Including the Jacobson/Karels algorithm TCP slow start and the routing radix tree are probably the most famous ones.

Unlike balanced trees, radix trees permit lookup, insertion, and deletion in O(k) time rather than O(log n).

In a trie, all comparisons require constant time, but it takes m comparisons to look up a string of length m. Radix trees can perform these operations with fewer comparisons, and require many fewer nodes.

In computer science, a radix tree (also patricia trie or radix trie or compact prefix tree) is a space-optimized trie data structure where each node with only one child is merged with its child.

Radix trees also share the disadvantages of tries, however: as they can only be applied to strings of elements or elements with an efficiently reversible mapping to strings, they lack the full generality of balanced search trees, which apply to any data type with a total ordering.

For the space-optimized presentation of prefix tree, see compact prefix tree.

In computer science, a radix tree (also patricia trie or radix trie or compact prefix tree) is a space-optimized trie data structure where each node with only one child is merged with its child.