Results 71 to 80 of about 22,745 (142)
ABSTRACT What are the conditions under which business corporations expand their institutional power? This paper argues that institutional power is affected by the architecture of the “acquisition regime”—the set of formal (and informal) rules that govern how states purchase public services.
Reut Marciano, Shir Gal
wiley +1 more source
冲突证据合成作为研究热点,由于发现Dempster-Shafer合成可能导致悖论,至今仍然没有统一的解决方法.本文提出了一种新的冲突证据合成方法.融合系统中各证据的重要程度可能不同,新方法首先通过融合多证据距离,从而可以更加准确地得到证据距离,进一步通过相关算法转化证据距离为证据权值,权值反映了证据的重要程度,根据权值,对原始的基本可信度分配函数进行重新分配,再通过改进的合成公式,对重新概率分配的证据进行合成,得到合成结果.通过具体的算例比较,说明新方法在合成冲突证据方面具有一定的优越性.
夏桂书, 路晶, 魏永超
doaj
基于PSO-ELM融合动态加权AdaBoost的变压器故障诊断方法
油中溶解气体分析(DGA)是电力变压器故障诊断的一种常用方法。然而,基于DGA的传统方法不能建立精确的数学模型,单一智能诊断方法在实际应用中存在分类能力不足等问题,导致诊断结果准确率较低。文中提出一种基于PSO-ELM融合动态加权AdaBoost的变压器故障诊断方法。首先利用PSO算法对ELM模型进行优化,得到PSO-ELM模型,然后利用多分类AdaBoost算法对PSO-ELM模型进行重复迭代,得到带有不同权重的弱分类器,通过计算各分类器对测试样本的分错率,不断调整每个弱分类器的权重系数 ...
黄新波 +4 more
doaj
ABSTRACT As the Narrative Policy Framework (NPF) begins to unpack issues of power and narratives, the main focus has been on power‐over and domination rather than more transformative notions of power‐to and empowerment. This article draws on insights from gender and policy studies and suggests that the NPF benefits from adopting a multifaceted notion ...
Hilda Broqvist
wiley +1 more source
提出一种针对椒盐噪声的扩大窗口多重检测及使用双权值的自适应滤波算法.采用对可疑噪声扩大窗口进行多次重复检测来提高对噪声的判别,采用基于图像整体相似度和像素相似度的两种权值构造加权滤波函数,采用噪声剪切和自适应窗口实现滤波.实验表明,算法对不同密度的椒盐噪声具有良好的适应性,在高密度噪声下去噪效果有明显改善.
曹雨露, 冯子亮, 王兴
doaj
Imagined Integration: The Logics of Japanese Immigrant Integration Policy
ABSTRACT As governments develop immigrant integration policies, they draw on and express conceptions about what successful integration looks like—what we call “imagined integration.” Yet this imagination likely displays variation that matters for implementation: integration policymaking is increasingly multilevel as it involves subnational layers of ...
Mariri Niino, William L. Allen
wiley +1 more source
ABSTRACT This paper examines how experts exert influence within China's one‐party system, where policymaking is ideologically disciplined and knowledge‐intensive. It combines the Functional Theory of Agency, which identifies patterns of action including accumulation of knowledge, brokerage, entrepreneurship, and leadership, with a typology of four ...
Giliberto Capano, Yuchen Guo
wiley +1 more source
●1990年3月16~27日,接地技术学习班在重庆大学举办。 ●我国广大知识分子翘首以待的一部法律——《中华人民共和国著作权法》于1990年9月7日在7届全国人大常委会第15次会议上通过。《著作权法》共有6章56条,即总则,著作权,著作权许可使用合同,出版、表演、录音录像、播放,法律责任和附则。《著作权法》将自1991年6月1日起施行。
本刊编辑部
doaj
ABSTRACT Disruptive innovations often diffuse faster than inherited policy institutions can classify, assign jurisdiction, and govern them. In these early phases, the central struggle is often not yet about the stringency of substantive standards, but about prior questions of what the innovation is (its legal and administrative classification), who is ...
Sina Jangjoo
wiley +1 more source
针对变压器状态单一评价方法存在的不足和影响变压器性能的状态量错综复杂的特征,建立基于层次分析法和粗糙集的变压器状态评估模型。对变压器部件、状态量进行层次结构划分,借鉴专家经验并以层次分析法求得各部件、状态量的主观权重;结合变压器测试数据,运用粗糙集理论分析出各部件、状态量的客观权重;将主、客观权重进行优化组合,以反映各部件、状态量在变压器综合状态评估的权值。运用该模型对两台不同类型变压器的检修数据进行分析并得出变压器状态评价结果,将该结果与实际变压器检修状况对比,结果表明 ...
彭道刚 +3 more
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