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An integer period DFT for biological sequence processing

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3 Author(s)
Epps, J. ; Sch. of Electr. Eng. & Telecommun., Univ. of New South Wales, Sydney, NSW ; Ambikairajah, E. ; Akhtar, M.

Detection of periodicity in symbolic sequences such as DNA is of considerable interest in a number of applications, however fast, accurate algorithms are needed for measuring spectral content at multiple integer periods. This paper describes an integer period discrete Fourier transform (IPDFT), presents a new algorithm for its implementation, and discusses applications to DNA sequence analysis. Evaluations on DNA sequence data show that the IPDFT may be a more suitable tool for periodicity analysis than an existing widely used correlation-based approach.

Published in:

Genomic Signal Processing and Statistics, 2008. GENSiPS 2008. IEEE International Workshop on

Date of Conference:

8-10 June 2008