最优策略

Aituator load system ; optimal sliding mode variable structure control ; reaching law ; integral action ; feedforward control ; attenuation rate

舵机加载系统；最优滑模变结构控制；趋近律；积分策略；前馈控制；衰减度

In this paper, a new real AdaBoost algorithm based on multithreshold method was developed. Through the selection method of multioptimization threshold and combining the strategy of weak classifier threshold selection in discrete AdaBoost algorithm, the rational division of sample space was implemented.

对基于连续AdaBoost算法的人脸检测方法进行了改进，结合离散AdaBoost中弱分类器的阈值选取策略，通过多重最优阈值选择方法实现了样本空间的合理划分。

The optimal policy is also investigated by using Pontryagin's maximal principle.

最后运用Pontryagin最大值原理，给出系统的最优捕获策略。

Optimal operation of this process was determined by the continuous maximum principle.

运用连续最大值原理，求解并确定了过程的最优操作策略。

This paper addresses the problem of optimal dynamic pricing of perishable products when demand is substitutable.

本文针对易逝性产品中新产品对老产品需求的转移作用，应用收入管理方法得出老产品的最优动态定价策略，并应用最大凹向包络理论给出了简化算法的方法。

As we know, the insymmetry of medical information, the great ethical background and the indefinition of medical expenses, have greatly increase the supervising difficulty of medical insurance. It has been proved that we cannot control the growth of medical expenses simply by the enhancement of the supervision measures of insurance institutions. It is not the optimum choice. Through the analysis to behavior of the insurance institutions, medical agencies and the insurants, this paper has drawn a conclude that the fundamental reason of moral risk is the "third-party payment" social medical insurance system.

为了减少因道德风险而高涨的医疗费用，最安全的措施莫过于同时对医疗机构和被保险人进行监管，由于医疗信息的不对称，医疗消费浓重的伦理性色彩以及医疗消费的不确定性，增加了医保机构监管的难度，实践证明控制道德风险引发的医疗费用上涨，加大保险机构工作人员监管力度，往往不能达到预期的效果，显然不是一个最优的策略选择。

The prediction method of residual life and minimal loss renewal policy of wire rope is given.

给出了钢丝绳剩余寿命预测方法及最小损失意义下的最优更换策略。

Second, based on the above, it deeply studies optimal hedging strategy brought out by the present various compellent hedging disclosure standard, and compare their value effects, and point out that a full complete, prompt and exact disclosure can have the optimal effect.

并在此基础上加以扩展，深入研究当前各种强制性套期信息披露方式下所导致的最优套期策略以及价值效应比较分析，指出一个充分、完整、及时、准确的信息披露可以达到最有效的监管作用，并对我国上市公司的信息披露情况进行了分析。

The first layer is a profit maximization model for generation company in which the biddings of competitors are taken into account; the second layer is a sensitivity analysis based output regulation model of power generation company in which the minimum congestion cost is taken as objective, and this model is solved by genetic algorithm.

研究了考虑输电阻塞影响的发电商最优报价策略问题，建立了求解该问题的2层优化模型，第1层是基于竞争对手报价的发电商利润最大化模型，第2层是基于灵敏度分析的以阻塞费用最小为目标的发电商出力调整模型，并采用遗传算法对其进行求解。

Finally, based on the studies above, the characteristics of pantograph/catenary are analyzed and the active pantograph is modeled. By using the linear quadratic optimal control law, the design objective is to minimize the performance index, which is a function of the state variables representing the pantographs dynamic characteristic and the active control force. The control system is designed considering the complete state feedback.

最后，在此基础上，分析了受电弓／接触网系统的工作特点，建立了受电弓主动控制系统的数学模型，利用线性二次型最优控制策略，以给定性能指标为最小值为设计目标，性能指标为表征受电弓动力学特性的状态变量和主动控制力的函数，考虑了完全状态反馈的情况，进行了控制系统的设计。

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％。