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Cryptanalzing a Novel Hyper-Chaotic Image Encryption Scheme Based on Pixel-Level Filtering and DNA-Level Diffusion

open access: yesIEEE Access, 2020
As we know, improving security is one of the most important motivations for designing new image encryption schemes. However, the security of some new image encryption schemes has not been fully analyzed and evaluated.
Wei Feng, Jing Zhang
doaj   +1 more source

PerMallows: An R Package for Mallows and Generalized Mallows Models

open access: yesJournal of Statistical Software, 2016
In this paper we present the R package PerMallows, which is a complete toolbox to work with permutations, distances and some of the most popular probability models for permutations: Mallows and the Generalized Mallows models.
Ekhine Irurozki   +2 more
doaj   +1 more source

Statistical dependence and shape of Young tableau

open access: yes4 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
doaj   +1 more source

Differentially 4-Uniform Permutations with the Best Known Nonlinearity from Butterflies

open access: yesIACR Transactions on Symmetric Cryptology, 2017
Many block ciphers use permutations defined over the finite field F22k with low differential uniformity, high nonlinearity, and high algebraic degree to provide confusion. Due to the lack of knowledge about the existence of almost perfect nonlinear (APN)
Shihui Fu, Xiutao Feng, Baofeng Wu
doaj   +1 more source

GFD: An R Package for the Analysis of General Factorial Designs

open access: yesJournal of Statistical Software, 2017
Factorial designs are widely used tools for modeling statistical experiments in all kinds of disciplines, e.g., biology, psychology, econometrics and medicine. For testing null hypotheses in this framework, ANOVA methods are widely used.
Sarah Friedrich   +2 more
doaj   +1 more source

Bogdanov Map-based Permuted Double Image Encryption [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2020
Chaos-based image encryption schemes shuffle the position of the pixels (confuse), change their values (diffuse), to camouflage the identity of the original image.
SUBASHINI V. JANARDHANAN   +1 more
doaj   +1 more source

Phenolic Compounds and Skin Permeability: An In Silico Investigation [PDF]

open access: yesAvicenna Journal of Medical Biochemistry, 2023
Background: The skin is the largest organ of the body and provides the main barrier between the internal and external environment. Assessment of skin permeability is of critical importance for understanding and predicting in vivo efficacy and ...
Majdi Hammami   +4 more
doaj   +1 more source

Intervals and factors in the Bruhat order [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2015
Combinatorics
Bridget Eileen Tenner
doaj   +1 more source

Operators of equivalent sorting power and related Wilf-equivalences [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2013
We study sorting operators $\textrm{A}$ on permutations that are obtained composing Knuth's stack sorting operator \textrmS and the reverse operator $\textrm{R}$, as many times as desired.
Michael Albert, Mathilde Bouvel
doaj   +1 more source

Generating trees for partitions and permutations with no k-nestings [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2012
We describe a generating tree approach to the enumeration and exhaustive generation of k-nonnesting set partitions and permutations. Unlike previous work in the literature using the connections of these objects to Young tableaux and restricted lattice ...
Sophie Burrill   +3 more
doaj   +1 more source

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