Abstract
A problem of interest in the realm of autocorrelation of (binary) finite sequences is to find sequences of length n with given (pre-defined) autocorrelation profiles. This amounts to solving a system of \(\lfloor n/2 \rfloor \) quadratic equations over the boolean cube \(\{-1,+1\}^n\). We establish and discuss a computational approach to this autocorrelation problems, using the concept of runs. An algorithm is given to solve this problem and its application is illustrated with non-trivial examples.
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Notes
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The experiments are performed in Maple 2017 on a Windows PC with an Intel(R) Core(TM) i7-6700U CPU @3.40Â GHz and 8Â GB RAM. The program terminates with success after 7750Â s and 14156Â s, respectively.
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Acknowledgements
This work was made possible by the facilities of the SMS International at GXUN, Nanning, P.R. China. ISK’s work is supported by NSERC grants. JY’s work is supported by the Special Fund for Guangxi Bagui Scholars (WBS 2014-01) and the Startup Foundation for Advanced Talents in Guangxi University for Nationalities (2015MDQD018). ISK would like to thank JY for providing excellent working conditions at the SMS International and warm hospitality in Nanning.
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Kotsireas, I.S., Yang, J. (2018). Autocorrelation via Runs. In: Fleuriot, J., Wang, D., Calmet, J. (eds) Artificial Intelligence and Symbolic Computation. AISC 2018. Lecture Notes in Computer Science(), vol 11110. Springer, Cham. https://doi.org/10.1007/978-3-319-99957-9_13
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