排序方式: 共有38条查询结果,搜索用时 15 毫秒
1.
Hai Liu Changgen Peng Youliang Tian Shigong Long Feng Tian Zhenqiang Wu 《Entropy (Basel, Switzerland)》2022,24(3)
The existing work has conducted in-depth research and analysis on global differential privacy (GDP) and local differential privacy (LDP) based on information theory. However, the data privacy preserving community does not systematically review and analyze GDP and LDP based on the information-theoretic channel model. To this end, we systematically reviewed GDP and LDP from the perspective of the information-theoretic channel in this survey. First, we presented the privacy threat model under information-theoretic channel. Second, we described and compared the information-theoretic channel models of GDP and LDP. Third, we summarized and analyzed definitions, privacy-utility metrics, properties, and mechanisms of GDP and LDP under their channel models. Finally, we discussed the open problems of GDP and LDP based on different types of information-theoretic channel models according to the above systematic review. Our main contribution provides a systematic survey of channel models, definitions, privacy-utility metrics, properties, and mechanisms for GDP and LDP from the perspective of information-theoretic channel and surveys the differential privacy synthetic data generation application using generative adversarial network and federated learning, respectively. Our work is helpful for systematically understanding the privacy threat model, definitions, privacy-utility metrics, properties, and mechanisms of GDP and LDP from the perspective of information-theoretic channel and promotes in-depth research and analysis of GDP and LDP based on different types of information-theoretic channel models. 相似文献
2.
S. Ramasubramanian 《Proceedings Mathematical Sciences》2008,118(2):161-182
2007 Abel prize has been awarded to S R S Varadhan for creating a unified theory of large deviations. We attempt to give a
flavour of this branch of probability theory, highlighting the role of Varadhan. 相似文献
3.
MPLS标签交换是目前IP通信网络中使用广泛的一项技术,其固定的标签格式虽然大大加速了转发引擎交换速度,承载了一定的QoS信息,但其针对特殊领域、特殊用途的标准制定、实现途径却无能为力,在一定程度上制约了其更加广泛且有效的应用。从标准MPLS标签头的角度出发,分析了当前MPLS交换体制的不足,借鉴IPV6的思想,提出一种通过扩展标签头格式和转发表的方法,解决提出的MPLS扩展性问题。 相似文献
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Chris A. Kieslich 《Journal of Non》2011,357(2):707-716
Electrostatically-driven association of proteins is important to many biological functions, and understanding which amino acid residues contribute to these interactions is crucial to protein design. Theoretical calculations that are used to elucidate the role of electrostatics in association are typically based on a single experimentally determined protein structure, while an underlying rigid-body assumption is adopted. The goal of this study was to investigate the role of conformational fluctuations on electrostatic interaction energies, as applied to the electrostatic analysis of barnase-barstar. For our calculations, we apply theoretical alanine-scan mutagenesis to introduce charge perturbations by replacing every ionizable residue with alanine, one at a time. Electrostatic clustering and free energy calculations based on the Poisson-Boltzmann method are used to evaluate the effects of each perturbation. Molecular dynamics simulations are performed for the barnase-barstar parent complex and seven experimental alanine mutations from the literature, in order to introduce relaxation before and after mutation. We discuss the effects of dynamics, in the form of pre- and post-mutation relaxation, on electrostatic clustering and free energies of association in light of experimental data. We also examine the utility of nine electrostatic similarity methods for clustering of barnase alanine-scan mutants. Our calculations suggest that the rigid-body assumption is reasonable for electrostatic calculations of barnase-barstar. 相似文献
6.
Abstract Guided by the self-interaction mechanisms introduced in Benaim et al. [2] and in [5], we present a more general definition of self-interacting Markov chains (SIMCs) (than in Del Moral and Miclo [5] and Benaim et al. [2]). We then establish, for particular self-interaction mechanisms, a stability theorem with error estimation, two central limit theorems, two functional central limit theorems, and the large deviation principle. 相似文献
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从IP与ATM结合技术的演变入手,阐述了MPLS的基本原理,并重点介绍了LSP的建立过程。同时,对MPLS的控制协议进行了比较。 相似文献
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首先简述了VPLS的基本含义,之后着重分析了VPLS的关键技术实现,并将其与MPLSL3VPN进行了技术对比,对其存在的问题以及应用场景进行了分析。 相似文献
10.
安全MPLS技术研究 总被引:2,自引:1,他引:1
介绍了多协议标记交换技术的工作原理、组网、实现,并且着重阐述了如何建立安全信道以及如何进行安全通信。提出了如何构建一个安全MPLS网络。 相似文献