NIST

compact DAWG

(data structure)

Definition: A directed acyclic word graph (DAWG) representing the suffixes of a given string in which each edge is labeled with the longest possible string. The strings along a path from the root to a node are the substring which the node represents.

See also directed acyclic word graph, Patricia tree.

Note: This is a variant of a directed acyclic word graph, or DAWG, in which a node with one child is merged with its parent and the edge labels are concatenated. A Patricia tree merges single-child nodes also, but does not combine common subtrees.

Author: PEB

More information

Andrew W. Appel and Guy J. Jacobson, The World's Fastest Scrabble Program, CACM, 31(5):572-578, May 1988. Good description of the basic DAWG.


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Entry modified 17 December 2004.
HTML page formatted Fri Feb 23 10:06:07 2018.

Cite this as:
Paul E. Black, "compact DAWG", in Dictionary of Algorithms and Data Structures [online], Vreda Pieterse and Paul E. Black, eds. 17 December 2004. (accessed TODAY) Available from: https://www.nist.gov/dads/HTML/compactDAWG.html