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ACM Computing Surveys, 2014
Huffman’s algorithm for computing minimum-redundancy prefix-free codes has almost legendary status in the computing disciplines. Its elegant blend of simplicity and applicability has made it a favorite example in algorithms courses, and as a result it is perhaps one of the most commonly implemented algorithmic techniques.
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Huffman’s algorithm for computing minimum-redundancy prefix-free codes has almost legendary status in the computing disciplines. Its elegant blend of simplicity and applicability has made it a favorite example in algorithms courses, and as a result it is perhaps one of the most commonly implemented algorithmic techniques.
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Journal of Algorithms, 1985
This note shows how to maintain a prefix code that remains optimum as the weights change. A Huffman tree with nonnegative integer weights can be represented in such a way that any weight w at level l can be increased or decreased by unity in O(l) steps, preserving minimality of the weighted path length.
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This note shows how to maintain a prefix code that remains optimum as the weights change. A Huffman tree with nonnegative integer weights can be represented in such a way that any weight w at level l can be increased or decreased by unity in O(l) steps, preserving minimality of the weighted path length.
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Weighted Adaptive Huffman Coding
2020 Data Compression Conference (DCC), 2020Huffman coding is known to be optimal in case the alphabet is known in advance, the set of codewords is fixed and each codeword consists of an integral number of bits. If one of these conditions is violated, optimality is not guaranteed. In the dynamic variant of Huffman coding the encoder and decoder maintain identical copies of the model; at each ...
Aharon Fruchtman +3 more
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Forward Looking Huffman Coding
Theory of Computing Systems, 2019zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Shmuel T. Klein +2 more
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Kybernetes, 2013
Purpose – David Huffman, as a graduate student, earned his immortality by solving a problem that had stumped Claude Shannon, the creator of the field of information theory. How he saw the problem differently and the nature of his discovery have implications for how we get stuck, how we get unstuck, and how the internal ...
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Purpose – David Huffman, as a graduate student, earned his immortality by solving a problem that had stumped Claude Shannon, the creator of the field of information theory. How he saw the problem differently and the nature of his discovery have implications for how we get stuck, how we get unstuck, and how the internal ...
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Synchronizing dynamic Huffman codes
Discrete Applied MathematicszbMATH Open Web Interface contents unavailable due to conflicting licenses.
Shmuel T. Klein +2 more
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Minimum Variance Huffman Codes
SIAM Journal on Computing, 1982Huffman’s well-known coding method constructs a minimum redundancy code which minimizes the expected value of the word length. In this paper, we characterize the minimum redundancy code with the minimum variance of the word length. An algorithm is given to construct such a code. It is shown that the code is in a certain sense unique.
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Optimal Prefix Codes And Huffman Codes
International Journal of Computer Mathematics, 2003Existence of the optimal prefix codes is shown in this paper. Relationship between the optimal prefix code and the Huffman code is also discussed. We prove that all Huffman codes are optimal prefix codes and conversely optimal prefix codes need not be Huffman codes.
Dongyang Long +2 more
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Algorithms for adaptive Huffman codes
Information Processing Letters, 1984L'algorithme d'Huffman permet de generer des codes a redondance minimum pour un ensemble fini de message a frequences de transmissions connues. On considere ici seulement les codes d'Huffman binaires. On decrit un algorithme qui peut etre generalise, mais le systeme binaire reste certainement le mieux adapte aux applications ...
Gordon V. Cormack, R. Nigel Horspool
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Self-synchronizing Huffman codes
IEEE Trans. Inf. Theory, 1984Summary: A problem associated with the use of variable-length source codes is that loss of synchronization may lead to extended errors in the decoded text. In this correspondence it is shown that some binary Huffman codes contain a codeword that resynchronizes the decoder regardless of the synchronization slippage preceding that codeword.
Thomas J. Ferguson, J. H. Rabinowitz
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