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Improved Dual-image Quality with Reversible Data Hiding Using Translocation and Switching Strategy

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Computer Systems Science & Engineering 2023年第2期44卷 1551-1566页

作者： Chin-Feng Lee Kuo-Chung Chan Department of Information Management Chaoyang University of TechnologyTaichung41349Taiwan

Dual-image reversible data hiding(RDH)is a technique for hiding important messages.This technology can be used to safely deliver secret mes-sages to the recipient through dual images in an open network without being easily noticed.The recipient of the image must receive the two stego-images before the secret message can be completely retrieved.Imperceptibility is one of the main advantages of data hiding technology;to increase the imperceptibility,the quality requirements of the stego-images are relatively important.A dual ste-ganographic image RDH method,called a DS-CF scheme that can achieve a bet-ter steganographic image quality using the center folding(CF)strategy.In this paper,we developed a translocation and switching strategy(TaS)to shorten the distances between the stego-pixel coordinates and the cover pixel coordinates after information being hidden.Compared with the DS-CF scheme,our proposed DS-TaS scheme can effectively improve the quality of the steganographic images at the same level of embedding capability.The experimental results show that the PSNR of our DS-TaS scheme at k=1 was 55.66 dB,which is an increase of 1.5 dB,and is 51.43 dB for k=2,46.66 dB for k=3,and 40.91 dB for k=4.In addition,the PSNR values of the stego images was increased by 1.5,0.29,0.29,and 0.19 dB,respectively.This shows that our proposed dual-image RDH method can optimize the visual quality of the stego-images and is better than many other dual-image RDH techniques.

关键词： information hiding reversible data hiding(RDH) dual-image RDH center folding(CF)strategy

OTDR-based optical fiber bending and tensile loss analysis

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Optoelectronics Letters 2023年第3期19卷 164-169页

作者： WANG Yang WANG Xijun LI Xiaoling information management department Northwest A&F UniversityYangling 712100China

When optical fiber is deployed in practical engineering,bending and stretching of fiber optics is inevitable,which will affect optical communication.The fiber losses of different bending radii are simulated by COMSOL software.In order to verify the accuracy of simulation results,an experiment was designed to measure the losses of single-mode fiber under different bending radii and tension forces.The results show that the sensitive bending diameter of fiber loss is between 5 mm and 10 mm.The tensile effect has little influence on the fiber loss,but when the tensile force is greater than 160 N,the fiber breaks.This study provides an important reference for fiber layout in practical engineering.

关键词： fiber optical OTDR

A comparative study on characteristics of retracted publications across different open access levels

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Journal of Data and information Science 2024年第2期9卷 22-40页

作者： Er-Te Zheng Hui-Zhen Fu department of information Resources management School of Public AffairsZhejiang UniversityHangzhou 310058China School of information Resource management Renmin University of ChinaBeijing 100872China

Purpose:Recently,global science has shown an increasing open trend,however,the characteristics of research integrity of open access(OA)publications have rarely been studied.The aim of this study is to compare the characteristics of retracted articles across different OA levels and discover whether OA level influences the characteristics of retracted articles.Design/methodology/approach:The research conducted an analysis of 6,005 retracted publications between 2001 and 2020 from the Web of Science and Retraction Watch databases.These publications were categorized based on their OA levels,including Gold OA,Green OA,and non-OA.The study explored retraction rates,time lags and reasons within these categories.Findings:The findings of this research revealed distinct patterns in retraction rates among different OA levels.Publications with Gold OA demonstrated the highest retraction rate,followed by Green OA and non-OA.A comparison of retraction reasons between Gold OA and non-OA categories indicated similar proportions,while Green OA exhibited a higher proportion due to falsification and manipulation issues,along with a lower occurrence of plagiarism and authorship issues.The retraction time lag was shortest for Gold OA,followed by non-OA,and longest for Green OA.The prolonged retraction time for Green OA could be attributed to an atypical distribution of retraction reasons.A comparative study on characteristics of retracted publications across different open access levels Research limitations:There is no exploration of a wider range of OA levels,such as Hybrid OA and Bronze OA.Practical implications:The outcomes of this study suggest the need for increased attention to research integrity within the OA publications.The occurrences offalsification,manipulation,and ethical concerns within Green OA publications warrant attention from the scientific community.Originality/value:This study contributes to the understanding of research integrity in the realm of OA publications,shedding light on retraction patterns and reasons a

关键词： Open access Retracted publications Reasons for retraction Retraction time lag Bibliometrics

Painlevé integrability of a generalized fifth-order KdV equation with variable coefficients: Exact solutions and their interactions

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Chinese Physics B 2013年第5期22卷 75-82页

作者：徐桂琼 Department of Information Management College of ManagementShanghai University

By means of singularity structure analysis, the integrability of a generalized fifth-order KdV equation is investigated. It is proven that this equation passes the Painleve test for integrability only for three distinct cases. Moreover, the multi- soliton solutions are presented for this equation under three sets of integrable conditions. Finally, by selecting appropriate parameters, we analyze the evolution of two solitons, which is especially interesting as it may describe the overtaking and the head-on collisions of solitary waves of different shapes and different types.

关键词： generalized fifth-order KdV equation Painleve integrability soliton solution symbolic computa-tion

Modified Multivariate Process Capability Index Using Principal Component Analysis

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Chinese Journal of Mechanical Engineering 2014年第2期27卷 249-259页

作者： ZHANG Min WANG G Alan HE Shuguang HE Zhen department of Industrial Engineering Tianjin University department of Business information Technology Department of Information Management and management Science Tianjin University

The existing research of process capability indices of multiple quality characteristics mainly focuses on nonconforming of process output, the concept development of tmivariate process capability indices, quality loss function and various comprehensive evaluation methods. The multivariate complexity increases the computation difficulty of multivariate process capability indices（MPCI）, which makes them hard to be used in practice. In this paper, a new PCA-based MPCI approach is proposed to assess the production capability of the processes that involve multiple product quality characteristics. This approach first transforms the original quality variables into standardized normal variables. MPCI measures are then provided based on the Taam index. Moreover, the statistical properties of these MPCIs, such as confidence intervals and lower confidence bound, are given to let the practitioners understand the capability indices as random variables instead of deterministic variables. A real manufacturing data set and a synthetic data set are used to demonstrate the effectiveness of the proposed method. An implementation procedure is also provided for quality engineers to apply our MPCI approach in their manufacturing processes. The case studies demonstrate the effectiveness and feasibility of this new kind of MPCI, which is easier to be used in production practice. The proposed research provides a novel approach of MPCI calculation.

关键词： process capability index multivariate specification region principal component analysis confidence interval

Secure Image Hiding Scheme Based on Magic Signet

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Journal of Electronic Science and Technology 2020年第1期18卷 93-101页

作者： Chin-Feng Lee Ying-Xiang Wang Department of Information Management Chaoyang University of TechnologyTaichung 41349

Image data hiding technology is secret communications that carry hidden data in such a way that no one except the sender and intended recipients can even realize there is a hidden message. High embedding capacity,good images quality, and security are three important essentials. In this paper, each confidential hexadecimal will be carried by two cover pixels based on a magic matrix generated from a square template to reach the goal of higher embedding capacity while keeping good image visualization. Experimental results reveal that the proposed scheme guarantees higher embedding capacity of 2 bits per pixel and has the peak signal-to-noise ratio(PSNR) of 44.7 dB on average. Moreover, secret keys are used to ensure security consideration.

关键词： Data hiding embedding capacity steganography visual quality

A data directory to facilitate investigations on worldwide wildlife trafficking

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Big Earth Data 2023年第2期7卷 338-348页

作者： Meredith L.Gore Rowan Hilend Jonathan OPrell Emily Griffin John R.Macdonald Burcu B.Keskin Aaron Ferber Bistra Dilkina department of Geographical Sciences University of MarylandCollege ParkUSA department of Supply Chain management Michigan State UniversityEast LansingUSA department of information Sciences Statisticsand Management ScienceUniversity of AlabamaTuscaloosaUSA Operations and information management Division Babson CollegeWellesleyUSA Supply Chain management Department of ManagementColorado State UniversityFort CollinsUSA Verterbi School of Engineering University of Southern CaliforniaLos AngelesUSA

Wildlife trafficking is a global phenomenon posing many negative impacts on socio-environmental systems.Scientific exploration of wildlife trafficking trends and the impact of interventions is significantly encumbered by a suite of data reuse challenges.We describe a novel,open-access data directory on wildlife trafficking and a corresponding visualization tool that can be used to identify data for multiple purposes,such as exploring wildlife trafficking hotspots and convergence points with other crime,discovering key drivers or deterrents of wildlife trafficking,and uncovering structural patterns.Keyword searches,expert elicitation,and peer-reviewed publications were used to search for extant sources used by industry and non-profit organizations,as well as those leveraged to publish academic research articles.The open-access data directory is designed to be a living document and searchable according to multiple measures.The directory can be instrumental in the data-driven analysis of unsustainable illegal wildlife trade,supply chain structure via link prediction models,the value of demand and supply reduction initiatives via multi-item knapsack problems,or trafficking behavior and transportation choices via network interdiction problems.

关键词： Illegal wildlife trade supply chain operations management interdiction conservation

Efficient and secure three-party authenticated key exchange protocol for mobile environments

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Journal of Zhejiang University-Science C(Computers and Electronics) 2013年第5期14卷 347-355页

作者： Chih-ho CHOU Kuo-yu TSAI Tzong-chen WU Kuo-hui YEH Department of Information Management National Taiwan University of Science and Technology department of management information Systems Hwa Hsia Institute of Technology Department of Information Management National Dong Hwa University

Yang and Chang (2009) proposed a three-party authenticated key exchange protocol for securing communications in mobile-commerce environments. Their protocol reduces computation and communication costs by employing elliptic curve cryptosystems. However, Tan (2010) pointed out that Yang and Chang (2009)'s protocol cannot withstand impersonation and parallel attacks, and further proposed an enhanced protocol to resist these attacks. This paper demonstrates that Tan (2010)'s approach still suffers from impersonation attacks, and presents an efficient and secure three-party authenticated key exchange protocol to overcome shown weaknesses.

关键词： Three-party Key exchange Authentication Mobile environments

Recent Developments in Authentication Schemes Used in Machine-Type Communication Devices in Machine-to-Machine Communication: Issues and Challenges

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Computers, Materials & Continua 2024年第4期79卷 93-115页

作者： Shafi Ullah Sibghat Ullah Bazai Mohammad Imran Qazi Mudassar Ilyas Abid Mehmood Muhammad Asim Saleem Muhmmad Aasim Rafique Arsalan Haider Ilyas Khan Sajid Iqbal Yonis Gulzar Kauser Hameed department of Computer Engineering Balochistan University of Information TechnologyEngineering and Management SciencesQuetta87300Pakistan department of information Technology Balochistan University of Information TechnologyEngineeringand Management SciencesQuetta87300Pakistan department of information Systems College of Computer Sciences and Information TechnologyKing Faisal UniversityHofuf in Al-Ahsa31982Saudi Arabia department of management information Systems College of Business AdministrationKing Faisal UniversityHofuf in Al-Ahsa31982Saudi Arabia department of Software Engineering College of ComputingRiphah International UniversityFaisalabad44000Pakistan department of Electrical Engineering Balochistan University of information Technology Engineeringand Management SciencesQuetta87300Pakistan department of Mathematics College of Science Al-ZulfiMajmaah UniversityAl-Majmaah11952Saudi Arabia

Machine-to-machine (M2M) communication plays a fundamental role in autonomous IoT (Internet of Things)-based infrastructure, a vital part of the fourth industrial revolution. Machine-type communication devices(MTCDs) regularly share extensive data without human intervention while making all types of decisions. Thesedecisions may involve controlling sensitive ventilation systems maintaining uniform temperature, live heartbeatmonitoring, and several different alert systems. Many of these devices simultaneously share data to form anautomated system. The data shared between machine-type communication devices (MTCDs) is prone to risk dueto limited computational power, internal memory, and energy capacity. Therefore, securing the data and devicesbecomes challenging due to factors such as dynamic operational environments, remoteness, harsh conditions,and areas where human physical access is difficult. One of the crucial parts of securing MTCDs and data isauthentication, where each devicemust be verified before data transmission. SeveralM2Mauthentication schemeshave been proposed in the literature, however, the literature lacks a comprehensive overview of current M2Mauthentication techniques and the challenges associated with them. To utilize a suitable authentication schemefor specific scenarios, it is important to understand the challenges associated with it. Therefore, this article fillsthis gap by reviewing the state-of-the-art research on authentication schemes in MTCDs specifically concerningapplication categories, security provisions, and performance efficiency.

关键词： Authentication cyber security internet of things machine-type communication devices machine-to-machine communication