查询词典 optimal value function

The second chapter extends its cost function of original model, and give its optimal policy and explicit value function.

论文分为四章：第一章绪论，主要介绍了随机最优控制的一些发展情况及一些常见的随机最优控制模型。

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。

In this paper, by using some characteristic quantities such as value function, trust region radius, etc. in trust region method, we present a global error bound for the distance between a feasible solution and the optimal solution under the condition that the gradient vector of the objective function is strongly monotone.

本文利用信赖域方法中的几个特征量（由预测下降量给出的价值函数与信赖域半径等），在目标函数的梯度向量是强单调的条件下，为约束最优化问题的可行解与最优解之间的距离提供了一个全局误差界。

Optimal consumption and investment ; stochastic volatility ; stochastic optimal control ; value function

最优消费和投资；随机方差；随机最优控制；值函数

Failure formation ; optimal economic model ; process of series decision ; optimal use time ; all value function.

破坏形式；最优经济模型；连续化决策过程；最佳使用时间；总价值函数

And through the discussion of their localizations, a method is put forward to improve the optimal value of the objective function further by adjusting the LP's technique coefficients but not changing the optimal solution's structure, and the model is endowed with the inherent meanings of management innovation as well.

并在对两类线性优化逆问题自身局限性进行讨论的基础上，研究提出了在线性规划最优解结构不变的前提下，通过调整技术系数参数实现目标函数值进一步改善和优化的一种方法，且赋予了其企业管理创新的内在涵义。

Operations research ; batchselling ; optimal strategy ; optimal revenue value function

运筹学；分批销售；最优策略；最优收益值函数

A new method for estimating parameters is proposed due to the characteristics of artificial fish school algorithm such as overcoming the local optimal value and robustness. Firstly, the parameters of production function are constructed into the artificial fish and residual sum of squares is designed into the function of food consistence, secondly, the parameters of production function are estimated by the random behavior, preying behavior, swarming behavior and following behavior.

基于人工鱼群算法能够克服局部极值、鲁棒性强等特点，给出了一种生产函数中参数估计的通用新方法，该方法首先将生产函数模型中的参数构造成人工鱼模型，利用残差平方和设计食物浓度函数，然后通过人工鱼的随机、觅食、聚群、追尾等行为，对生产函数中的参数进行估计。

We show that the value function satisfies a free_boundary problem, prove the existence of the optimal policy by variational equation and get the optimal policy.

给出了价值函数满足的自由边界，用求解变分方程的方法证明了最优控制的存在性，并找到了最优控制策略。

The objective function of the combination optimization problem is set and an improved mutative scale chaos optimization algorithm is employed to search global optimal value. Thereby the optimal parameters combination are obtained.

对组合优化问题建立目标函数，采用一种改进的变尺度混沌优化算法来搜索全局最优值，从而得到最优的参数组合。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。