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A Simple Statistical Algorithm for Biological Sequence Compression

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4 Author(s)
Minh Duc Cao ; Fac. of Inf. Technol., Monash Univ., Clayton, Vic. ; Dix, T.I. ; Allison, L. ; Mears, C.

This paper introduces a novel algorithm for biological sequence compression that makes use of both statistical properties and repetition within sequences. A panel of experts is maintained to estimate the probability distribution of the next symbol in the sequence to be encoded. Expert probabilities are combined to obtain the final distribution. The resulting information sequence provides insight for further study of the biological sequence. Each symbol is then encoded by arithmetic coding. Experiments show that our algorithm outperforms existing compressors on typical DNA and protein sequence datasets while maintaining a practical running time

Published in:

Data Compression Conference, 2007. DCC '07

Date of Conference:

27-29 March 2007