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Evaluating the Risk of Disclosure and Utility in a Synthetic Dataset

Computers, Materials & Continua 2021年第7期68卷 761-787页

作者： Kang-Cheng Chen Chia-Mu Yu tooska dargahi Industrial Technology Research Institute Hsinchu310Taiwan National Chiao Tung University Hsinchu320Taiwan University of Salford ManchesterM54WTUnited Kingdom

The advancement of information technology has improved the delivery of nancial services by the introduction of Financial Technology(FinTech).To enhance their customer satisfaction,Fintech companies leverage articial intelligence(AI)to collect ne-grained data about individuals,which enables them to provide more intelligent and customized ***,although visions thereof promise to make customers’lives easier,they also raise major security and privacy concerns for their *** privacy(DP)is a common privacy-preserving data publishing technique that is proved to ensure a high level of privacy ***,an important concern arises from the trade-off between the data utility the risk of data disclosure(RoD),which has not been well *** this paper,to address this challenge,we propose data-dependent approaches for evaluating whether the sufcient privacy is guaranteed in differentially private data *** the same time,by taking into account the utility of the differentially private synthetic dataset,we present a data-dependent algorithm that,through a curve tting technique,measures the error of the statistical result imposed to the original dataset due to the injection of random ***,we also propose a method that ensures a proper privacy budget,i.e.,will be chosen so as to maintain the trade-off between the privacy and *** comprehensive experimental analysis proves both the efciency and estimation accuracy of the proposed algorithms.

关键词： Differential privacy risk of disclosure privacy utility

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A systematic literature review of blockchain cyber security

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Digital Communications and Networks 2020年第2期6卷 147-156页

作者： Paul J.Taylor tooska dargahi Ali Dehghantanha Reza M.Parizi Kim-Kwang Raymond Choo School of Computing Science&EngineeringUniversity of SalfordManchesterUK Cyber Science Lab School of Computer ScienceUniversity of GuelphOntarioCanada Department of Software Engineering and Game Development Kennesaw State UniversityMariettaGA30060USA Department of Information Systems and Cyber Security University of Texas at San AntonioSan AntonioTX78249USA

Since the publication of Satoshi Nakamoto's white paper on Bitcoin in 2008,blockchain has(slowly)become one of the most frequently discussed methods for securing data storage and transfer through decentralized,trustless,peer-to-peer *** research identifies peer-reviewed literature that seeks to utilize blockchain for cyber security purposes and presents a systematic analysis of the most frequently adopted blockchain security *** findings show that the Internet of Things(IoT)lends itself well to novel blockchain applications,as do networks and machine visualization,public-key cryptography,web applications,certification schemes and the secure storage of Personally Identifiable Information(PII).This timely systematic review also sheds light on future directions of research,education and practices in the blockchain and cyber security space,such as security of blockchain in IoT,security of blockchain for AI data,and sidechain security.

关键词： Blockchain Smart contracts Cyber security Distributed ledger technology IoT Cryptocurrency Bitcoin

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