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An efficient algorithm for testing immutability of variable-length codes

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3 Author(s)
Capocelli, R.M. ; Dept. of Math., Rome Univ., Italy ; Gargano, L. ; Vaccaro, U.

Immutable codes, which have recently been introduced as a tool for preventing undesirable changes of data recorded over write-once memories, are considered. The have the property that any change of recorded information over such memories can be detected. A fast algorithm for testing whether a variable-length code is immutable is presented. The complexity of the algorithm is O(L2), where L is the sum of the codeword lengths

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Information Theory, IEEE Transactions on  (Volume:35 ,  Issue: 6 )