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51.
《Stochastics An International Journal of Probability and Stochastic Processes》2013,85(3-4):181-217
In most stochastic decision problems one has the opportunity to collect information that would partially or totally eliminate the inherent uncertainty. One wishes to compare the cost and value of such information in terms of the decision maker's preferences to determine an optimal information gathering plan. The calculation of the value of information generally involves oneor more stochastic recourse problems as well as one or more expected value distribution problems. The difficulty and costs of obtaining solutions to these problems has led to a focus on the development of upper and lower bounds on the various subproblems that yield bounds on the value of information. In this paper we discuss published and new bounds for static problems with linear and concave preference functions for partial and perfect information. We also provide numerical examples utilizing simple production and investment problems that illustrate the calculations involved in the computation of the various bounds and provide a setting for a comparison of the bounds that yields some tentative guidelines for their use. The bounds compared are the Jensen's Inequality bound,the Conditional Jensen's Inequality bound and the Generalized Jensen and Edmundson-Madansky bounds. 相似文献
52.
双参数变形光子相位算符与双参数变形自旋相干态 总被引:1,自引:1,他引:0
本文构造了双参数变形光子相位算符,研究了它与双参数变形自旋相干态之间的关系,得到了一些新的结果。 相似文献
53.
We extend the Stieltjes integral to Hölder functions of two variables and prove an existence and uniqueness result for the corresponding deterministic ordinary differential equations and also for stochastic equations driven by a two-parameter fractional Brownian motion. 相似文献
54.
This article is concerned with notions of set-valued stochastic integrals driven by two-parameter martingales and increasing processes. We investigate their main properties and we consider next multivalued stochastic integral equations in the plane. We establish the existence and uniqueness of solutions to such equations as well as their additional properties. 相似文献
55.
借助一个满足量子Heisenberg-Weyl代数(H-Wq,s代数)的多模算符,给出了量子代数SU(2)q,s和SU(1,1)q,s的k(k≥2)模实现,并构造了相应的相干态. 相似文献
56.
57.
双参数指数分布尺度参数变化幅度的区间估计 总被引:1,自引:0,他引:1
本文将Schechtman(1983)文中的方法加以修改后应用到双参数指数分布尺度参数变化幅度ρ的估计上,得到了一个保守的置信下限,并通过随机模拟证明了这个置信下限不是平凡的。 相似文献
58.
Keiichi Hirose Eiichi Isogai Chikara Uno 《Annals of the Institute of Statistical Mathematics》1997,49(2):199-209
In this paper we consider sequential fixed-width confidence interval estimation for a parameter = aµ + b with a and b being given constants when the location parameter µ and the scale parameter of the negative exponential distribution are unknown. We investigate the rate of convergence of the coverage probability for fixed-width sequential confidence intervals of . 相似文献
59.
Shixin Gan 《数学学报(英文版)》1999,15(2):187-196
In this paper, we prove that under theF
4 conditions, anyL log+
L bounded two-parameter Banach spece valued martingale converges almost surely to an integrable Banach space valued random
variable if and only if the Banach space has the Radon-Nikodym property. We further prove that the above conclusion remains
true if theF
4 condition is replaced by the weaker localF
4 condition.
Project supported by the National Natural Science Foundation of China and the State Education Commission Ph. D. Station Foundation 相似文献
60.
对非线性不适定算子方程,引入一种双参数正则化方法求解,讨论了这种正则化方法解的存在性、稳定性和收敛性. 相似文献