Results 21 to 30 of about 10,997 (132)
A risk-measure and premium pricing model(一种风险度量与保费定价模式)
Zhejiang Daxue xuebao. Lixue ban, 2004 在“修正确定等价” (modified certainty equivalent)风险度量模式的基础上，引入风险度量安全系数λ，建立了 一种适用范围吏广的组合风險的度量模式——安全修正风险度量，从而也得到一种组合风险的保费定价模式. 由此，达到了风险的度量和保费定价的有机结合，同时，也将经典的“平均值原理”从个体风险推广到了组合投资和组合风险的度量定价中.
SHENYin-fang(沈银芳)
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Zhongguo shiyan zhenduanxue, 2023 我国高等教育学生能力评价方法，主要采取的是专业知识能力的客观化测量，如高等学校招生统一考试、学位英语考试、课程期末终结性考试等。此类考试能够对学生专业水平特别是专业知识掌握情况进行较为准确的判断，评价往往是针对某一学科或某几个学科的，但此类能力评价维度有限，难以多维度评估学生的综合素质和能力。而班主任和班组对高等教育毕业生能力的鉴定，往往因师生比例失调，导致评价结果模板化且多流于形式。成人高等学历教育是终身教育体系和继续教育体系的重要组成部分，是我国高等教育的一种重要形式[1]。
蒙世佼 +5 more
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Similarity Research of Time Series Based on Wavelet in Data Mining [PDF]
, 2004 小波分析是当前数学中一个迅速发展的新领域，它同时具有理论深刻与应用广泛的双重意义。与窗口傅里叶变换相比，小波变换是一种灵活的时频局域化变换。通过伸缩和平移等运算功能对函数或信号进行多尺度细化分析，解决了傅里叶变换不能解决的许多难题，被誉为“数学显微镜”，是调和分析发展史上的重要里程碑。 本文试图将小波理论引入股价序列分析，应用于相似性挖掘之中。所谓时序相似性挖掘是指给定一感兴趣时段，运用本文提出的算法从已知时序数据集中提取与之波形相似的时段集。本文拟从以下四方面加以研究： 1．特征向量的萃取 ...
汤凌冰
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How Do I Measure up? Social Influence and L2 Motivation in the Algorithmic Age
International Journal of Applied Linguistics, EarlyView.ABSTRACT Comparative thinking is a fundamental human drive and a hallmark of contemporary life. For social action, such as the learning and use of additional languages, a target for appraisal (an L2 attribute) is evaluated in relation to a comparison standard (an appraiser's standpoint).
Alastair Henry, Meng Liu
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A half-discrete Hilbert-type inequality with a non-homogeneous kernel(一个半离散非齐次核的Hilbert型不等式)
Zhejiang Daxue xuebao. Lixue ban, 2017 引入独立参数，应用权函数的方法及实分析技巧，建立一个具有最佳常数因子的半离散非齐次核的Hilbert型不等式，还考虑了其具有最佳常数因子的等价形式.
YANGBicheng(杨必成) +1 more
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People and Nature, Volume 8, Issue 2, Page 270-282, February 2026.Abstract Chinese consumer demand for ivory threatens vulnerable African elephant populations, despite long‐standing efforts to combat the illegal wildlife trade. Behavioural science approaches have been proposed to address these systemic behaviours. However, their robust use remains uncommon in demand management interventions.
Molly R. C. Brown +3 more
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Zhejiang Daxue xuebao. Lixue ban, 2013 引入Γ-函数等特殊函数，利用权函数方法和实分析技巧，建立一个核为双曲正割函数的Hilbert型积分不等式及其等价式，证明了它们的常数因子是最佳值，并通过取特殊的参数值，得到一些有意义的结果.
LIUQiong(刘琼) +1 more
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International Journal of Urban and Regional Research, Volume 50, Issue 1, Page 191-220, January 2026.Abstract Henry George advocated for capturing land value increases for public ends. The active approach of public authorities organizing and financing land development can help capture higher land value increases, as Hartman and Spit indicate. However, this approach hardly happens in developing countries, where the coalition of private developers and ...
Nannan Xu
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People and Nature, Volume 7, Issue 11, Page 2700-2713, November 2025.Abstract Large old trees are important ecological entities in human settlements, providing cultural values and ecological services that are threatened by current and future changes in global climate, land use and disturbance regimes. Some studies suggest incorporating social and cultural significance into the conservation of large old trees.
Zhuo Cheng +5 more
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On two levels of government's policy for the transboundary pollution with population mobility [PDF]
, 2008 利用Stackelberg博弈模型,探讨在包含中央和地区两级政府的混合经济中,人口流动下跨区污染的政府政策选择.指出:当地区间的包含环境因素的生产技术存在差异时,为实现经济的最优状态必须进行地区间的收入转移;而在两级政府政策的博弈过程,无论是中央政府还是地区政府拥有最后选择权,只要中央政府制定适当的收入转移政策,经济均可达到社会性最优状态.分析了资源实现社会性最优配置的特征,导出了中央政府为实现社会性最优所应确立的收入转移原则.In this paper,Stackellberg game models
洪树林, 邵宜航
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