Differences between version 4 and predecessor to the previous major change of HuffmanCoding.
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| Newer page: | version 4 | Last edited on Saturday, February 22, 2003 12:54:43 pm | by PerryLorier | Revert |
| Older page: | version 3 | Last edited on Saturday, February 22, 2003 12:51:03 pm | by PerryLorier | Revert |
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Rumour goes that a professor once said to his class that they'd get an A+ in a course if they could invent a better compression method than dictionary compression(?), believing the problem to be impossible. Mr Huffman was sitting in the audience, and actually achieved it, creating 'Huffman Coding' and an A+ :)
:This sounds like an UrbanLegend to me. [DavidHuffman] was not the one invented entropy driven compression; [Shannon] and [Fano] did that. [Huffman]'s contribution was to come up with an algorithm to create an optimal dictionary given a set of weights for a set of symbols which results in the minimum possible length of the encoded data stream. --AristotlePagaltzis
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+It's possibly a bit of an UrbanLegend, but he did design it for a term paper, I think anyone that invents an efficient compression method such as HuffmanCoding for a term paper deserves an A+ no matter what :)
HuffmanCoding is a PrefixFreeCode, which means that no code is a prefix of another one.
an example HuffmanCoding might be
