Results 1 to 10 of about 16,870,140 (249)
A basis of common approach to the development of universal steganalysis methods for digital images
Trudy Odesskogo Politehničeskogo Universiteta, 2014 In this paper a new common approach to the organization of steganalysis in digital images is developed. New features of formal parameters defining the image are identified, theoretically grounded and practically tested.
Алла Анатоліївна Кобозєва
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Modified Unbiased Optimal Estimator For Linear Regression Model [PDF]
مجلة جامعة الانبار للعلوم الصرفة, 2023 In this paper, we propose a novel form of Generalized Unbiased Optimal Estimator where the explanatory variables are multicollinear. The proposed estimator's bias, variance, and mean square error matrix (MSE) are calculated.
Hussein AL-jumaili, Mustafa Alheety
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A vectorization of iterative computational processes and time acceleration estimates
Informatika, 2022 O b j e c t i v e s. The problem of efficient organization of the execution of sequential computational processes in the vector mode is solved, taking into account the capabilities of modern high-performance vector-pipeline computers.
V. M. Demidenko, V. I. Benediktovich
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Continuous Wave Signal Detection Based on Weight Vector under Colored Gaussian Noise
水下无人系统学报, 2023 Signal detection under colored Gaussian noise needs pre-white processing. In view of this, a signal detection method based on a weight vector was proposed.
Zhen DAI, Jiwei WU, Meifang YIN
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Conditions for the Existence of Absolutely Optimal Portfolios
Mathematics, 2021 Let Δn be the n-dimensional simplex, ξ = (ξ1, ξ2,…, ξn) be an n-dimensional random vector, and U be a set of utility functions. A vector x*∈ Δn is a U -absolutely optimal portfolio if EuξTx*≥EuξTx for every x∈ Δn and u ∈ U.
Marius Rădulescu +2 more
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A dual active set algorithm for optimal sparse convex regression
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2019 The shape-constrained problems in statistics have attracted much attention in recent decades. One of them is the task of finding the best fitting monotone regression. The problem of constructing monotone regression (also called isotonic regression) is to
Aleksandr Aleksandrovich Gudkov +3 more
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Malaria Journal, 2023 Background Entomological surveillance provides critical information on vectors for appropriate malaria vector control and strategic decision-making. The widely documented insecticide resistance of malaria vectors in Côte d’Ivoire requires that any vector
Bernard Loukou Kouassi +25 more
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On the Volume of Sections of the Cube
Analysis and Geometry in Metric Spaces, 2021 We study the properties of the maximal volume k-dimensional sections of the n-dimensional cube [−1, 1]n. We obtain a first order necessary condition for a k-dimensional subspace to be a local maximizer of the volume of such sections, which we formulate ...
Ivanov Grigory, Tsiutsiurupa Igor
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General Principles of Integrity Checking of Digital Images and Application for Steganalysis
Transport and Telecommunication, 2016 The new common approach for integrity checking of digital images is developed. The new features of formal parameters defining image are revealed, theoretically grounded and practically tested.
Kobozeva Alla A. +2 more
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Topology of matching complexes of complete graphs via discrete Morse theory [PDF]
Discrete Mathematics & Theoretical Computer ScienceBouc (1992) first studied the topological properties of $M_n$, the matching complex of the complete graph of order $n$, in connection with Brown complexes and Quillen complexes. Bj\"{o}rner et al. (1994) showed that $M_n$ is homotopically $(\nu_n-1)$
Anupam Mondal +2 more
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