Results 11 to 20 of about 602,393 (302)

Reversible data hiding method by extending reduced difference expansion

open access: yesIJAIN (International Journal of Advances in Intelligent Informatics), 2019
To keep hiding secret data in multimedia files, such as video, audio, and image considers essential for information security. Image, for instance, as the media aids data insertion securely. The use of insertion technique must ensure a reliable process on
Zainal Syahlan, Tohari Ahmad
doaj   +3 more sources

An improved reversible image watermarking algorithm based on difference expansion

open access: yesInternational Journal of Distributed Sensor Networks, 2017
To improve the visual quality and the embedding rate of the existing reversible image watermarking algorithm, an improved reversible image watermarking algorithm based on difference expansion is proposed.
Zhengwei Zhang   +4 more
doaj   +2 more sources

Impact of the Panama Canal expansion on Latin American and Caribbean ports: difference in difference (DID) method

open access: yesJournal of Shipping and Trade, 2021
The expanded Panama Canal opened on June 26, 2016. This expansion is the third set of locks that enabled the canal to double its capacity through the addition of new traffic lanes, which allowed neo-Panamax and some post-Panamax vessels to transit across
Kahuina Miller, Tetsuro Hyodo
doaj   +2 more sources

Viscovatov-Like Algorithm of Thiele–Newton’s Blending Expansion for a Bivariate Function

open access: yesMathematics, 2019
In this paper, Thiele−Newton’s blending expansion of a bivariate function is firstly suggested by means of combining Thiele’s continued fraction in one variable with Taylor’s polynomial expansion in another variable.
Shengfeng Li, Yi Dong
doaj   +2 more sources

A Proposed Stochastic Finite Difference Approach Based on Homogenous Chaos Expansion [PDF]

open access: yesJournal of Applied Mathematics, 2013
This paper proposes a stochastic finite difference approach, based on homogenous chaos expansion (SFDHC). The said approach can handle time dependent nonlinear as well as linear systems with deterministic or stochastic initial and boundary conditions. In
O. H. Galal
doaj   +2 more sources

Research on strong robustness watermarking algorithm based on dynamic difference expansion

open access: yes网络与信息安全学报, 2023
A surge in the amount of information comes with the rapid development of the technology industry.Across all industries, there is a need to collect and utilize vast amounts of data.While this big data holds immense value, it also poses unprecedented ...
Tianqi WANG, Yingzhou ZHANG, Yunlong DI, Dingwen LI, Linlin ZHU
doaj   +3 more sources

Exploring More Capacity for Grayscale-Invariance Reversible Data Hiding

open access: yesIEEE Access, 2021
Grayscale-invariant reversible data hiding (RDH) in color images was developed recently in which the grayscales of the marked color image are required to be the same as that of the host color image.
Chun-Liang Jhong, Hsin-Lung Wu
doaj   +1 more source

Secure medical image watermarking based on reversible data hiding with Arnold's cat map

open access: yesIJAIN (International Journal of Advances in Intelligent Informatics), 2023
The process of restoring medical images to their original form after the extraction process in application watermarking is crucial for ensuring their authenticity. Inaccurate diagnoses can occur due to distortions in medical images from conventional data
Aulia Arham, Novia Lestari
doaj   +1 more source

Ideological differences in the expanse of the moral circle [PDF]

open access: yesNature Communications, 2019
AbstractDo clashes between ideologies reflect policy differences or something more fundamental? The present research suggests they reflect core psychological differences such that liberals express compassion toward less structured and more encompassing entities (i.e., universalism), whereas conservatives express compassion toward more well-defined and ...
Adam Waytz   +4 more
openaire   +3 more sources

Stagnation generation: Evaluating the impact of higher education expansion on social mobility from the perspective of Taiwan [PDF]

open access: yesPanoeconomicus, 2020
Social class stagnation is a current topic of concern. The stagnation of generational mobility could result in society losing its ability to enhance individuals’ social status.
Lin Yen-Ling
doaj   +1 more source

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