查询词典 stochastic approximation

However, there was little progress been made until Sekimoto proposed his definition of efficiency concerning the stochastic energetics.

然而只是当Sekimoto给效率一个可计算的定义以后，对于这一问题的研究才逐步开展起来。

In the empirical study on technical efficiency, we use stochastic frontier analysis and data envelopment analysis at the same time.

在技术效率实证研究中，同时使用随机前沿分析和数据包络分析。

Data envelopment analysis and stochastic frontier analysis is employed to evaluate building design firms in this text.

本文运用数据包络分析方法和随机前沿分析方法对建筑设计企业进行了评价研究。

These works give a proof that stochastic resonance is not only epiphenomenon in sensory systems.

这些工作为说明随机共振现象不是感觉系统中的附带现象提供了佐证。

By using the homogeneous balance principle and Hermite transform, various kinds of exact solutions to a stochastic nonlinear evolution equations can be algebraically obtained in terms of the exact solutions of heat conduction equation with variable coefficients.

利用齐次平衡原则及厄尔米特变换，借助于变系数热传导方程的各种精确解，用代数的方法获得了一随机非线性发展方程组的各种精确解。

Finally, to understand and reproduce the results of numerical simulations, we propose a phenomenological noise driven equations describing evolutions of macroscopic variables under the assumption of local energy equipartition and the fluctuation-dissipation theorem. The numerical results of the stochastic equations and those of numerical results from the original Hamiltonian dynamics coincide with each other very well.

最后，为了理解和重现数值模拟的结果，我们通过局域能量均分假设和涨落耗散定理，建立了一个由噪声驱动的宏观变量演化的唯象动力学方程。

Combining with the characteristics and the principle of analysis on existing bridges, the equipollent load, the mathematical model and the stochastic model for traffic load on existing bridge are studied.

本文结合既有桥梁车辆荷载的特点和分析原则，研究了既有桥梁车辆荷载的等代荷载、数学模型以及随机过程模型。

Stochastic theory and other correlative theories are used to analyze IGA, and the immune extend population sequence formed by IGA is proved to be an aperiodic irreducible ergodic Markov chain.

同时在纯数学意义上拓展讨论，就IGA的一般收敛理论进行分析，证明了概率弱收敛、几乎处处弱收敛、渐进收敛等性质。

The stochastic property, ergodic property and regular property of the chaotic generator are studied, and three types combination of chaos and evolution computation are investigated.

论述了进化计算的理论基础，建立了进化计算的统一模型；研究了混沌发生器的随机性、遍历性和规律性以及混沌与进化计算相结合的三种方式。

Based on a Hopfield neural network mode for combinational circuit test generation, a test generation algorithm with global searching ability is proposed. This algorithm is the combination of chaotic searching with gradient algorithm. By means of the inherent stochastic and ergodic property of chaotic searching, the problem of being trapped in local minimum of gradient algorithm can be solved.

基于组合电路测试生成的离散Hopfield神经网络模型，将混沌搜索与Hopfield网络的梯度算法相结合，利用混沌搜索的内随机性及遍历性来克服梯度算法易于陷于局部极小的缺点，形成一种具有全局搜索能力的测试生成有效算法。

The changes of the HAF after liver injury may be related to the volume of blood loss, the intraabdominal pressure and the pneumoperitoneum duration.

肝撞击伤伴失血后肝动脉血流量的变化与失血量、气腹压力以及气腹持续时间等有密切联系。

Reneging on our commitments to the world's poor cannot be an austerity measure, she said.

放弃我们给世界上的穷国的承诺不能成为一种紧缩措施。