一种面向多次发布的隐私保护模型

文章提出了一种面向多次发布的数据库隐私保护模型,通过等价类的动态调整来隐藏数据和等价类间的映射关系,降低隐私泄露的风险。利用伪数据调节数据的多样性以满足匿名规则的要求,伪数据亦可作为噪声数据增加攻击者的分析难度,提高隐私保护强度。在UCI数据库上进行的仿真实验结果表明,该模型能够有效减少因多次发布带来的隐私泄露。

数据发布中隐私保护技术综述

随着互联网大数据时代的到来,呈指数级增长的数据在给社会提供大量信息资源的同时,也带来了许多安全问题。限制发布是关系型数据库中主要的隐私保护方法,将待发布的数据进行泛化处理,以达到保护隐私的目的。笔者总结了隐私保护领域的现有研究,并分析了多次发布带来的隐私泄露问题,并指出了当前研究的前景。

Application of Wind Generation on Weak Networks Considering Potential System Limitations Due to Transients and Faults

Limited resources are available on the application of wind generation systems interconnected to weak powemetworks. With the need to further interface DG （distributed generation） including WG （wind generation） to weak networks, it is necessary to establish a means of determining what is the most efficient quantity of WG that can be applied in order to maintain stability in the network. This paper establishes a concept that can be applied to weak networks. The aim is to estimate how much WG can be installed on weak networks as well as establishing characteristic responses to generation loss without and with faulted conditions. The main contribution is a thorough understanding of weak network limitation proved to be the most critical parameter in these calculations.

Threads无法永远屏蔽争议话题

Meta Platforms Inc的社交平台Threads已上线11周,目前该平台正竭力回避有关其限制发布内容的争议。在Meta终于加入关键字搜索功能后,用户搜索一些重要话题时,比如“新冠”,居然一无所获。