Results 21 to 30 of about 76,162 (262)
Statistical dependence and shape of Young tableau
4 open, 2023 Given two continuous random variables, X and Y, we study the relationship between their statistical dependence and the Young tableau of the permutation defined from the graph of a bivariate sample coming from (X, Y). From a sample of size n of (X, Y), we
García Jesús E. +2 more
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Frontiers in Physics, 2023 This study proposes a novel color image encryption algorithm based on a 3D chaotic Hopfield neural network and random row–column permutation. First, a 3D chaotic Hopfield neural network is proposed to produce the random sequence for generating the ...
Wei Yao +5 more
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A product formula for the TASEP on a ring [PDF]
Discrete Mathematics & Theoretical Computer Science, 2014 For a random permutation sampled from the stationary distribution of the TASEP on a ring, we show that, conditioned on the event that the first entries are strictly larger than the last entries, the $\textit{order}$ of the first entries is independent of
Erik Aas, Jonas Sjöstrand
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A Novel and Fast Encryption System Based on Improved Josephus Scrambling and Chaotic Mapping
Entropy, 2022 To address the shortcomings of weak confusion and high time complexity of the existing permutation algorithms, including the traditional Josephus ring permutation (TJRP), an improved Josephus ring-based permutation (IJRBP) algorithm is developed.
Zhaoxiong Guan +5 more
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Permutation Entropy for Signal Analysis [PDF]
Discrete Mathematics & Theoretical Computer ScienceShannon Entropy is the preeminent tool for measuring the level of uncertainty (and conversely, information content) in a random variable. In the field of communications, entropy can be used to express the information content of given signals (represented
Bill Kay +6 more
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INTERNATIONAL JOURNAL OF COMPUTERS COMMUNICATIONS & CONTROL, 2022 For exploring the meaning of the power set in evidence theory, a possible explanation of power set is proposed from the view of Pascal’s triangle and combinatorial number. Here comes the question: what would happen if the combinatorial number is replaced by permutation number?
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Cycles in Mallows random permutations
Random Structures & Algorithms, 2023 AbstractWe study cycle counts in permutations of drawn at random according to the Mallows distribution. Under this distribution, each permutation is selected with probability proportional to , where is a parameter and denotes the number of inversions of .
Jimmy He +2 more
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THE ANALYSIS OF RANDOM PERMUTATIONS WITH s-PROHIBITION
Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2015 Transpositions of lower lines of random permutanions of size n with forbidden subsequences of size s < n are considered. The number of such transpositions are finded, their enumerations are realized, the numeration problem of outcomes of the scheme is
Natalia Enatskaya
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A Symmetric Plaintext-Related Color Image Encryption System Based on Bit Permutation
Entropy, 2018 Recently, a variety of chaos-based image encryption algorithms adopting the traditional permutation-diffusion structure have been suggested. Most of these algorithms cannot resist the powerful chosen-plaintext attack and chosen-ciphertext attack ...
Shuting Cai +3 more
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Cryptanalysis of Optical Ciphers Integrating Double Random Phase Encoding With Permutation
IEEE Access, 2017 This paper presents the cryptanalysis of optical ciphers combining double random phase encoding with permutation techniques, and shows its vulnerability against plaintext attack regardless of the implementation order of the two procedures. The equivalent
Junxin Chen +4 more
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