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Further, under weakened conditions (without the assumption of continuity of objective function), the convergence theorem of EP and ES with the general mutation operators is also given.

针对一般的变异算子,在不要求目标函数连续的情况下,证明了保持最优个体的进化规划和进化策略,迭代产生的最优个体的函数值收敛到问题的最优值的ε-邻域的概率为1。

Using the dynamic programming approach, an explicit solution to the value function of the optimal portfolio problem is obtained by the HJB equation, and the optimal investment strategy is given.

在风险投资服从Heston模型的假设下,研究了幂效用函数的最优投资组合问题,利用动态规划方法通过HJB方程得到最优投资组合价值函数的显式解,并给出最优投资策略。

An optimal control model is developed for the definite linear economic systems with an inequality constraint on state integrals, based on the dynamic input-output theory.

利用动态投入产出模型和控制理论方法相结合,对经济系统进行分析和宏观调控·具有状态积分不等式约束的确定性线性经济系统最优控制模型,是基于动态投入产出理论建立的·利用无约束条件的极大值原理,分析了最优技术与经济控制策略的存在性和惟一性,使得产品的实际产出尽量接近理想产出,同时使能源、资金等消耗最小,并给出了最优反馈控制的形式

Our analysis framework relies on the reflected Backward Stochastic Differential equation approach.We characterize the value functions of the noncallable bonds in terms of the reflected Backward Stochastic Differential equation,Then the relationship between the value function of convertible bonds and reflected backward stochastic differential equations with single reflect is built at the same time,and provide the optimal conversion strategy for bondholders.2:We get the value of non-callable convertible bonds by numerical methods.

探讨了可转换债券的最优停时价值与带反射边界倒向随机微分方程解的关系,在市场完备,公司价值只包括股权和可转债这两种权益等各种假定下,给出不可赎回可转换债券的价值函数,证明了不可赎回可转换债券的最优停时问题的解是存在的,同时给出了其最优的转换策略。2:通过数值方法求解不可赎回可转换债券的价值。

We analyze especially the equilibrium rules of optimal strategy and its conditions and make a comparative static analysis to the influence of parameters to optimal thresholds after educing investment value function and optimal investment threshold.

在导出企业投资价值函数和最优投资临界值的基础上,着重分析了企业最优投资策略均衡规则及各均衡存在的条件,并就各参数对企业最优投资临界值的影响进行比较静态分析,得出了一些有意义的结论,同时给出了经济解释。

Based on the principle of optimality,the search problem is then transformed to an equivalent problem of deterministic distributed parameters system,represented by a second order PDE.

采用分析的方法来研究随机运动目标的最优搜索问题,并将原问题转化为由一个二阶偏微分方程所表示的确定性分布参数系统的等价问题,推导出随机运动目标的最优搜索问题的HJB方程,并证明了该方程的解即是所寻求的最优搜索策略。

In this paper,an optimum trajectory from perilune to lunar surface is derived in terms of Pontryagin's maximum principle,which is an open-loop way.Then,an optimal nonlinear control law based on an fuzzy neural network is presented,on the basis of the optimum trajectory,due to the nonlinear mapping function of the fuzzy neural network,which is a closed-loop way.

本文根据终端着陆条件和性能指标,以由Pontryagin's极大值原理得出从近月点到月球表面的最优着陆轨迹为基础,给出一种基于模糊神经网络的非线性最优控制策略,使被控系统能够通过模糊神经网络的非线性映射能力实现某种最优的闭环制导控制。

Basically,an optimal nonlinear control law based on an artificial neural network is presented,on the basis of the optimum trajectory from perilune to lunar surface in terms of Pontryagin's maximum principle according to the terminal boundary conditions and performance index.

其主要内容是,根据终端着陆条件和性能指标,以由庞氏极大值原理得出从近月点到月面的最优着陆轨迹为基础,给出一种基于人工神经元网络的非线性最优控制策略,使被控系统能通过神经网络对非线性的映射能力实现某种最优的非线性控制。

By combinatory counting process to enumerate data of work condition of each generators, thus makes sure the searching and solver in optimal condition.3. Set up the power equilibrium equation and flow equilibrium equation according to the slack variable. It is not necessary to adjust the optimization any more and guarantee the optimal precision of the solution.4. Digitalize the composite characteristic curve, such as the digital input and accurate extraction of data during the performing.The above mentioned is an expanding for optimal performing of hydropower station in theory. It has good engineering applicability.

在水轮机专业领域和水电站运行领域主要成果是:(1)用人工智能的方法解决了水电站机组间负荷动态最优调度问题,且用数学方法严格证明了解的最优性;(2)用组合计数对并联机组的每个组合工况进行无遗漏枚举,从而保证搜索策略的作用范围和解的最优性;(3)利用松弛变量建立了功率平衡方程和流量平衡方程,使优化结果不再需要二次调节,保证了解的优化精度;(4)综合特性曲线的数字化,包括曲线的数字化输入和在程序运行过程中对曲线信息的精确提取。

Taking the overconfidence as an important cognitive bias into the consideration of classical optimal consumption and investment problem,an optimal consumption and investment model is set up with incomplete information.Then,an optimal consumption and investment strategy is given by use of stochastic dynamic programming theory.

将行为金融理论中过度自信这一重要的认知偏差纳入经典的最优消费投资问题中考虑,建立了部分信息下的最优消费投资决策模型,并运用随机动态规划原理得到了最优消费投资策略。

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推荐网络例句

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严,以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆,把帆卷起,系住。

Therefore, positively advances the interest rate marketability reform is one of current our country finance reform important tasks.

因此,积极推进利率市场化改革是当前我国金融改革的重要任务之一。