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Error resilient data compression with adaptive deletion

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1 Author(s)
Storer, J.A. ; Dept. of Comput. Sci., Brandeis Univ., Waltham, MA, USA

In earlier work we presented the k-error protocol, a technique for protecting a dynamic dictionary method from error propagation as the result of any k errors on the communication channel or compressed file. Here we further develop this approach and provide experimental evidence that this approach is highly effective in practice against a noisy channel or faulty storage medium. That is, for LZ2-based methods that “blow up” as a result of a single error, with the protocol in place, high error rates (with far more than the k errors for which the protocol was previously designed) can be sustained with no error propagation (the only corrupted bytes decoded are those that are part of the string represented by a pointer that was corrupted). Our experiments include the use of adaptive deletion, which can provide “insurance” for changing sources

Published in:

Compression and Complexity of Sequences 1997. Proceedings

Date of Conference:

11-13 Jun 1997