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汇率随机波动模型实证分析
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作者 宁忠忠 《甘肃金融》 2006年第8期34-38,共5页
关键词 模型实证 随机波动 中央银行干预 收益率波动 外汇市场 直接标价法 杠杆效应 时间序列 当期收益率 确定性规律
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概率四论
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作者 黄书亭 《大学数学》 1991年第4期132-136,共5页
本文结合教材和教学的实际,对概率论的认识论、本体论,方法论以及实践论问题作一粗浅的探讨。一、认识论从数学的分类讲起按照研究对象的不同,数学可以分为确定性数学、随机数学和模糊数学三类。确定性数学以高等数学(数学分析、微分方... 本文结合教材和教学的实际,对概率论的认识论、本体论,方法论以及实践论问题作一粗浅的探讨。一、认识论从数学的分类讲起按照研究对象的不同,数学可以分为确定性数学、随机数学和模糊数学三类。确定性数学以高等数学(数学分析、微分方程)为代表,这种确定性是指问题、结果的确定性,因果对应的确定性;随机数学则以概率论为代表,随机数学的显著特征是“不确定性”。 展开更多
关键词 确定性规律 随机数学 实践论 柯尔莫哥洛夫 《实践论》 大陆国家 柯氏 决疑数学 工科数学 外尔斯特拉斯
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09年将是市场结构修复重筑的开始
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作者 李劬 《股市动态分析》 2009年第4期38-38,共1页
2008年中国A股市场在内外因素的共振之下,走出了暴跌近70%的单边下挫行情。展望2009年市场发展前景,悲观者仍受困于目前惨淡的经济现实,乐观者则欣喜于未来光明的盈利前景。长期来看,价格向其代表的价值回归是金融市场中为数不多的确定... 2008年中国A股市场在内外因素的共振之下,走出了暴跌近70%的单边下挫行情。展望2009年市场发展前景,悲观者仍受困于目前惨淡的经济现实,乐观者则欣喜于未来光明的盈利前景。长期来看,价格向其代表的价值回归是金融市场中为数不多的确定性规律之一。 展开更多
关键词 市场结构 心理预期 市场价格 市盈率 短期内 价值回归 修复 市场未来 金融市场 确定性规律
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A Study on the Prediction Method of Strong Earthquakes Based on Dynamic Seismicity Patterns with Dynamic Implications
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作者 Wang Xingzhou Wang Haitao +5 位作者 Chen Yuwei Huang Xianliang Shen Xiaoqi Miao Peng Chen Anguo Hong Dequan 《Earthquake Research in China》 2012年第2期234-242,共9页
Seismic gap method is one of the effective earthquake prediction methods using seismicity patterns. However, this method has some limitations and uncertainty when using it singly in predicting earthquakes. This paper ... Seismic gap method is one of the effective earthquake prediction methods using seismicity patterns. However, this method has some limitations and uncertainty when using it singly in predicting earthquakes. This paper puts forward the prediction method using the dynamic seismicity pattern with dynamic implications. This method considers the formation and evolution of the seismic gap on the basis of plate movement and structural characteristics. Through analysis of 26 cases of earthquakes of MS≥5.0 occurring in East China and South China, this paper obtains the relationship between the main shock with seismic gap and active fault's location, as well as the relationship between the seismic gap and location and strike of active faults. Meanwhile, this paper provides a dynamic explanation of the differences in the formation and evolution patterns of the seismic gap between the two regions, thus providing the physical basis for and reducing the uncertainty of predicting earthquakes using the seismic gap method. 展开更多
关键词 Seismic gap Dynamic pattern Active fault Plate movement
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A General Law of Precise Asymptotics for the Complete Moment Convergence 被引量:17
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作者 Yong ZHANG Xiaoyun YANG Zhishan DONG 《Chinese Annals of Mathematics,Series B》 SCIE CSCD 2009年第1期77-90,共14页
The authors achieve a general law of precise asymptotics for a new kind of complete moment convergence of i.i.d. random variables, which includes complete con- vergence as a special case. It can describe the relations... The authors achieve a general law of precise asymptotics for a new kind of complete moment convergence of i.i.d. random variables, which includes complete con- vergence as a special case. It can describe the relations among the boundary function, weighted function, convergence rate and limit value in studies of complete convergence. This extends and generalizes the corresponding results of Liu and Lin in 2006. 展开更多
关键词 Complete moment convergence General law Precise asymptotics
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Environmental Justice in the Context of Scientific Uncertainty: On the Safety of Genetically Modified Organisms 被引量:2
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作者 Wang Mingyuan Jin Feng 《Social Sciences in China》 2018年第2期58-76,共19页
A foremost issue of our time is our response to risks,especially those arising from scientific uncertainty,such as genetically modified organisms(GMOs).In this context,we need to achieve and maintain environmental jus... A foremost issue of our time is our response to risks,especially those arising from scientific uncertainty,such as genetically modified organisms(GMOs).In this context,we need to achieve and maintain environmental justice.This should be based on the corresponding scientific research;essentially,however,it is a kind of social construct.We must maintain a free market mechanism for the development,application,and dissemination of modern technology,including genetically modified biotech and its products.At the same time,the necessary government intervention and legal regulation of the relevant science and technology should be put in place to ensure public safety and the interests of socially disadvantaged groups. 展开更多
关键词 scientific uncertainty environmental justice legal regulation public interests
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Improved uncertainty propagation method of dynamic model for Mars entry spacecraft
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作者 FU Hui-min XIAO Qiang WU Yun-zhang 《航空动力学报》 EI CAS CSCD 北大核心 2014年第5期1223-1233,共11页
In order to research the uncertainty propagation laws of Mars entry dynamic equations for the Mars entry phase,an improved method was presented for analyzing the effect of the initial state uncertainties and uncertain... In order to research the uncertainty propagation laws of Mars entry dynamic equations for the Mars entry phase,an improved method was presented for analyzing the effect of the initial state uncertainties and uncertainty factor on the system state in the state trajectories.When applying the method to the entry phase of one of the NASA Mars exploration missions,the simulation results agreed well with the Monte Carlo method,especially the flight path angle simulation at least reaching 92%.It is found that the improved method can not only predict the uncertainty propagation laws with high accuracy of at least 92%in flight path angle simulation and large application scope from-0.1degree to 0.1degree,compared with local linearization method,but also save several hours relative to Monte Carlo method. 展开更多
关键词 确定性传播规律 动态方程 月出入 高精度的改进方法
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