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本文首先给出了利用单调集的可能性测度推测可能性分布的方法.其次得到了根据有限论域上单调集的可能性测度可以构造论域上的一个mass函数.同时,论域上协调的mass函数可以得到论域上的可能性测度,进而得到其可能性分布. 相似文献
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可测函数在可测集上的测度比较 总被引：1，自引：0，他引：1
郭家勇 《连云港师范高等专科学校学报》2001,(3):53-54
通过不等式给出了可测函数之间的测度大小，并推出更为一般的结论。 相似文献
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在跳扩散半鞅模型中,引进了跳的强度过程与跳的概率密度函数过程,研究了测度变换对跳的强度与密度函数过程引起的变化、研究了跳扩散半鞅的最小鞅测度与最小熵鞅测度．得到了这两个鞅测度的精确表达式以及这两个鞅测度所引起的跳强度与密度函数过程的具体变化公式． 相似文献
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戎艰平 《宁波大学学报(教育科学版)》1988,(2)
UBC类与UBC_0类函数分别是BMOA类与VMOA类函数的亚纯推广。我们知道,对单位圆盘上的每一个解析函数f(z),f(z)∈BMOA当且仅当(1-|z|~2)|f′(z)|~2dxdy是Carleson测度;f(z)∈VMOA当且仅当(1-|z|~2)|f′(z)|2dxdy是消失Carleson测度。本文我们证明,对单位圆盘上的亚纯函数f(z),f(z)∈UBC_0当且仅当(1-|z|~2)f~(#2)(z)dxdy是消失Carleson测度;若f(z)∈N,则f(z)∈UBC当且仅当(1-|z|~2)f~(#2)(z)dxdy是Carleson测度;其中f~#(z)△=|f′(z)|/(1+|f(z)|~2)。 相似文献
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金家樑 《常熟理工学院学报》2002,16(6):60-62,65
集合的测度作为长度的推广，是一个重要的数学概念，本文论述了由长度公理推广到测度公理的过程，建立了勒贝格测度公理及勒贝格一斯蒂吉斯测度公理。 相似文献
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本文给出测度函数的定义,并得到如下结果:可测函数f(x)在可测集E上的勒贝格积分等于f(x)在E上的测度函数的黎曼积分。从而给出了证明勒贝格积分性质的一种新方法。 相似文献
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This study aimed to develop a measure of early childhood practitioners' beliefs about emotions and to use this measure to examine the structure and correlates of these beliefs. A 40-item emotion beliefs measure was administered to 279 American practitioners. Internal consistency for each of 10 emotion belief areas was weak to moderate. In revising the measure, emotion belief areas with the lowest internal consistency were deleted and items were added to the 6 remaining areas to strengthen their reliability. The resulting 23-item revised measure had internal consistencies of .41 to .62 for each of 6 emotion belief areas. Participants' emotion beliefs were related to their level of education and background in early childhood education. A 4-factor solution provided the best fit to the data, explaining 40% of the variance in the U.S. teachers' emotion beliefs. This factor structure was similar to that of the conceptually derived belief scales. Cultural patterns were examined by comparing beliefs of Korean and American teachers of 4-6-year-olds, using t-tests and factor analyses. Although the structure of emotion beliefs was similar, differences appeared in the level of agreement with many items, reflecting culturally specific expectations a b u t young children's emotional vulnerability and about the nature of emotional bonds and emotion socialization in early childhood programs. 相似文献
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This study explores the structure of French teachers’ educational beliefs. First, instruments to measure these beliefs are adapted and developed. Data is collected through focus group discussions and an online survey (n = 302). Factor analyses reveal a three-factor structure to measure teachers’ general beliefs about teaching and learning: ‘beliefs about student regulation of learning processes and knowledge construction’, ‘beliefs about teacher regulation of learning processes’, and ‘beliefs about knowledge reproduction’. Furthermore, a two-factor structure to measure teachers’ subject-specific beliefs about French language teaching is found: ‘traditional beliefs about French language teaching’ and ‘constructivist beliefs about French language teaching’. Second, this study explores the relationships between and within teachers’ general beliefs about teaching and learning and their subject-specific beliefs about French language teaching. Results show two distinct and independent belief structures: a traditional and a constructivist belief structure. Via cluster analyses, two clusters of teachers are found whose beliefs are consistent with these belief structures. 相似文献
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图书馆的组织文化是指图书馆在长期生存和发展中形成的,为图书馆多数成员所共同遵守的最高目标、基本信念、价值标准和行为规范.应在平时的工作实践、教育培训和制度建设中营造信赖与合作的组织文化,培养知识共享与创新服务的组织文化. 相似文献
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该文利用自相似集的Hausdorff测度的一个基本结果得到了一个特殊的自相似集的Hausdorff测度的准确值,并指出了有关文献中的一个错误. 相似文献
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物理学的发展自始至终深受着信仰的影响,即它不仅为物理学的创立提供了一种形而上学的约定和先验的理论框架,而且尤为重要的是它还为物理学的创造提供了一种强大的精神动力。揭示信仰在物理学及其他自然科学学科中的地位与功能,能给予人们深刻的启示。 相似文献
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近年来学界对转型期中国马克思主义信仰问题的研究取得了丰硕的成果:一是揭示了马克思主义信仰的含义与特点;二是分析了马克思主义信仰的功用;三是探讨了马克思主义信仰危机的含义及表现;四是探索了马克思主义信仰危机的成因与重建马克思主义信仰的路径。 相似文献
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李敬民 《信阳师范学院学报(哲学社会科学版)》2008,28(5):88-92
“杠天神戏”是流传在洪河、汝河、史灌河入淮（河）口一带的以娱神为主要目的的民间祭祀戏曲。它是伴随着这一地区人们的信仰归属而产生,充分体现了“杠天神戏”在豫南皖西民间信仰中所发挥的祭祀功能、仪式功能和表演功能,同时也反映出豫南皖西民间独特的信仰表达方法。 相似文献
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客家民间信仰研究成果颇丰,可谓汗牛充栋,前人成果为我们思考民间信仰在客家乡村社会发挥的作用,起到了很大的启迪作用,但前人成果多是对传统功能的分析。随着改革开放的深入,客家乡村传统社会也经历了翻天覆地的变化,客家民间信仰在全新的社会条件下发挥着怎样的现实功效呢?通过以于都县寒信村水府庙会为考察中心,从社区营造的视野,分析客家民间信仰在社区建设中所发挥的巨大作用,并就此补充前人观点而提出民间信仰的社区营造功能。 相似文献
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Wim J. van der Linden Minjeong Jeon Steve Ferrara 《Journal of Educational Measurement》2011,48(4):380-398
According to a popular belief, test takers should trust their initial instinct and retain their initial responses when they have the opportunity to review test items. More than 80 years of empirical research on item review, however, has contradicted this belief and shown minor but consistently positive score gains for test takers who changed answers they found to be incorrect during review. This study reanalyzed the problem of the benefits of answer changes using item response theory modeling of the probability of an answer change as a function of the test taker’s ability level and the properties of items. Our empirical results support the popular belief and reveal substantial losses due to changing initial responses for all ability levels. Both the contradiction of the earlier research and support of the popular belief are explained as a manifestation of Simpson’s paradox in statistics. 相似文献