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Line 242: == Variations == Many variations of Huffman coding exist,<ref>{{cite ~~journal \|title=Code and Parse Trees for Lossless Source Encoding~~book \|first=J. \|last=Abrahams \|others=Division of Mathematics, Computer & Information Sciences, [[Office of Naval Research]] (ONR) \|title=Proceedings. Compression and Complexity of SEQUENCES 1997 (Cat. No.97TB100171) \|chapter=Code and parse trees for lossless source encoding \|___location=Arlington, VA, USA \|journal=Compression and Complexity of Sequences 1997 Proceedings \|pages=145–171 \|date=1997-06-11 \|isbn=0-8186-8132-2 \|publication-place=Salerno \|doi=10.1109/SEQUEN.1997.666911 \|publisher=[[IEEE]] \|citeseerx=10.1.1.589.4726 \|s2cid=124587565 }}</ref> some of which use a Huffman-like algorithm, and others of which find optimal prefix codes (while, for example, putting different restrictions on the output). Note that, in the latter case, the method need not be Huffman-like, and, indeed, need not even be [[polynomial time]]. === ''n''-ary Huffman coding ===

Huffman coding: Difference between revisions