HDDA: DataSifter: statistical obfuscation of electronic health records and other sensitive datasets

There are no practical and effective mechanisms to share high-dimensional data including sensitive information in various fields like health financial intelligence or socioeconomics without compromising either the utility of the data or exposing private personal or secure organizational information. Excessive scrambling or encoding of the information makes it less useful for modelling or analytical processing. Insufficient preprocessing may compromise sensitive information and introduce a substantial risk for re-identification of individuals by various stratification techniques. To address this problem, we developed a novel statistical obfuscation method (DataSifter) for on-the-fly de-identification of structured and unstructured sensitive high-dimensional data such as clinical data from electronic health records (EHR). DataSifter provides complete administrative control over the balance between risk of data re-identification and preservation of the data information. Simulation results suggest that DataSifter can provide privacy protection while maintaining data utility for different types of outcomes of interest. The application of DataSifter on a large autism dataset provides a realistic demonstration of its promise practical applications.     

从《大学衍义补》看丘浚的货币思想

丘浚是明代大政治家、经济学家,在其代表作《大学衍义补》中,有许多关于货币的杰出的思想：1．货币是随着生产力的发展和商品的交换而产生的,货币具有价值尺度与贮藏手段的职能;2．主张货币的铸造权和发行权应统归国家;3．提出了以白银为基础,银、钱、钞平行流通的货币改革方案,并明确规定其兑换比率。     

一种新型的IGBT驱动保护电路

本文介绍了一种新型的性能较完善的ＩＧＢＴ驱动保护电路,实验结果表明,该电路能快速,安全,可靠地实现保护功能。     

重庆旅游景区文本的译文风格研究:问题与对策

本文借用文体学理论和奈达的功能对等理论,通过实地调研、游客访谈、样例分析等方法,对重庆旅游景区英语文本在语言书写、词汇、语法、修辞及文化因素等层面上存在的主要问题进行分析探讨,并提出相应的翻译策略:增强语言能力、培养文体意识,掌握基本的翻译技巧和方法,在形式和内容上尽量与原文保持一致,熟悉旅游景点的相关文化知识,希望这些策略能为旅游文本中的英译提供一些参考.     

论股权多重转让中善意取得规则的修正适用

《公司法司法解释三》第27条第1款规定“一股二卖”纠纷应参照适用善意取得规则。但股权与物权变动模式相去甚远,股权登记对抗主义与善意取得制度亦抵牾颇多,股权多重转让参照适用善意取得规则将面临适用上的窘境。为增进法律体系的和谐并促进股权登记、鼓励诚信,第27条的修正适用需在登记对抗主义的前提下寻求先买人和第三人之间的利益均衡点。由于我国现阶段股权外观效力的缺陷,股权多重转让中更需注重对先买人利益的保护,并妥当刻画先买人的可归责性标准与第三人的“善意”标准。可归责性标准可以在个案中具体衡量,第三人“善意”标准可以从承担有限的调查义务逐步过渡到善意推定,再到登记对抗主义,逐步消解善意取得对登记对抗的制度异化和干扰。     

心学道统论——以“颜子没而圣学亡”为中心

王阳明的“颜子没而圣学亡”这句论断有悖于理学道统论所建构的“孟轲死,圣人之学不传”的道统传承谱系,被认为是儒学史上的“千古大公案”。阳明及其弟子王畿从良知心学的立场出发,通过对颜子学的重新解释以重建“心学道统论”,强调道统须建立在“心体”的观念基础之上。由于心体是普遍超越的,故道统不再受时空局限而具有不断传承下去的连续性,但这种连续不是个人化的私密传统,而应具有向任何人都敞开的开放性;它作为儒学精神传统既是历史文化的产物,同时存在于人们“生身受命”的过程中,故道统又具有实践性;道统也绝不是少数掌握儒家经典的知识权威才有资格接续,更不是拥有“政统”的政治权威者可以独占,因而道统具有独立于知识领域和政治领域之外的独立性。     

A note on the minimum number of choosability of planar graphs

The problem of minimum number of choosability of graphs was first introduced by Vizing. It appears in some practical problems when concerning frequency assignment. In this paper, we study two important list coloring, list edge coloring and list total coloring. We prove that \(\chi '_{l}(G)=\varDelta \) and \(\chi ''_{l}(G)=\varDelta +1\) for planar graphs with \(\varDelta \ge 8\) and without adjacent 4-cycles.     

2-Edge connected dominating sets and 2-Connected dominating sets of a graph

A \(k\)-connected (resp. \(k\)-edge connected) dominating set \(D\) of a connected graph \(G\) is a subset of \(V(G)\) such that \(G[D]\) is \(k\)-connected (resp. \(k\)-edge connected) and each \(v\in V(G)\backslash D\) has at least one neighbor in \(D\). The \(k\) -connected domination number (resp. \(k\) -edge connected domination number) of a graph \(G\) is the minimum size of a \(k\)-connected (resp. \(k\)-edge connected) dominating set of \(G\), and denoted by \(\gamma _k(G)\) (resp. \(\gamma '_k(G)\)). In this paper, we investigate the relation of independence number and 2-connected (resp. 2-edge-connected) domination number, and prove that for a graph \(G\), if it is \(2\)-edge connected, then \(\gamma '_2(G)\le 4\alpha (G)-1\), and it is \(2\)-connected, then \(\gamma _2(G)\le 6\alpha (G)-3\), where \(\alpha (G)\) is the independent number of \(G\).     

论20世纪50年代"新英雄人物"创作规范的建立

借“社会主义现实主义”创作理论的引进和“两结合”创作理论提出的契机,20世纪50年代“新英雄人物”创作规范逐步建立起来。这种创作规范的建立过程一直处于一种“政治性、理想性、阶级性”与“写实”的张力之中。也正是这种张力的逐渐失衡,孕育并终于造就了“文革”文学中“无产阶级英雄人物”的诞生。