(algorithm)
Definition: A near-minimal variable-length character coding that changes based on the frequency of characters processed. As characters are processed, frequencies are updated and codes are changed (or, the coding tree is modified).
Also known as dynamic Huffman coding.
Generalization (I am a kind of ...)
Huffman coding.
Specialization (... is a kind of me.)
Vitter's algorithm, algorithm FGK.
Note: The total message length can be less than that produced by a static Huffman coding since the coding can be different at different places in the message.
Author: PEB
Explanation of algorithm FGK and Vitter's Algorithm (algorithm V), two different adaptive Huffman coding algorithms.
If you have suggestions, corrections, or comments, please get in touch with Paul E. Black.
Entry modified 17 December 2004.
HTML page formatted Mon Sep 11 09:46:00 2006.
Cite this as:
Paul E. Black, "adaptive Huffman coding", in
Dictionary of Algorithms and Data
Structures [online], Paul E. Black, ed.,
U.S. National Institute of
Standards and Technology. 17 December 2004. (accessed TODAY)
Available from: http://www.nist.gov/dads/HTML/adaptiveHuffman.html
