An integer period DFT for biological sequence processing
Epps, J.; Ambikairajah, E.; Akhtar, M.
Genomic Signal Processing and Statistics, 2008. GENSiPS 2008. IEEE International Workshop on
Volume , Issue , 8-10 June 2008 Page(s):1 - 4
Digital Object Identifier   10.1109/GENSIPS.2008.4555661
Summary: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.

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