查询词典 policy iteration

We can use value iteration to obtain the optimal value function, from which the optimal policy can be derived efficiently.

用值迭代的方法可以求解MDP的最优值函数，然后从最优值函数得到最优策略。

Value iteration based on the vector set results in the piecewise linear convex form of the optimal value function, which can also be used to obtain the optimal policy.

在向量集上进行的值迭代可以得到最优值函数的分段线性凸函数表示形式，同样也可以得到对应的策略。

The behavior of the net is far less restricted and able to reach more system states. The policy does not need iteration, avoiding the problem of state explosion.

减少了对原网系统行为的限制，增加了网系统的可达状态，简化了控制策略。

The topsy-turvy world of party politics is just the latest iteration of policy you wouldn't expect, much like the Third Way, near-conservative policies of the Clinton Administration.

党派政治这个混乱的世界可能和别的地方一样，会重演出乎意料的政策；就像克林顿政府推行的接近保守主义的第三条道路。

The second strategy is a two-stage iteration policy for the design of a liveness-enforcing controller, which includes a siphon control stage and an augmented siphon control stage. After that, there is no maximal deadly siphon in controlled system such that the liveness can be preserved.

第二种策略是两阶段的活性控制器设计迭代算法，通过信标控制和导出信标控制两个阶段使系统不会产生新的死信标从而保证了控制器的活性。

The algorithm is proved to be convergent theoretically and implemented for numerical calculation.Thirdly, two kind problems of multi-unit system maintenance based on the discrete-state deterioration model are analyzed:To achieve the optimization aim of series system consist of two types of units with different failure mode, an opportunistic policy is presented to combine the corrective and condition-based maintenance. The optimal model based on this policy is built and an iteration algorithm based on sequential decision is proposed according to the characteristic of discrete-state deterioration model.

第三、在部件优化分析的基础上，针对基于离散状态劣化模型的多部件系统视情维修决策中的两类典型问题，提出了相应的机会维修策略和优化分析方法：(1)针对串联系统由分别采用视情维修和事后维修的两类部件组成的情况，提出了一类事后维修与视情维修相结合的机会策略，建立了相应的多部件系统维修优化模型，并根据离散状态劣化模型的特点，提出了一类基于序贯决策的求解方法。

Given a skip-parser type SkipT, skip_parser_iteration_policy creates a scanner iteration policy that skips over portions that are recognized by the skip-parser. This may then be used to create a scanner. The scanner_policies class wraps all scanner related policies including the iteration policies.

给与一个类型为 SkipT 的跳读分析器，则 skip_parser_iteration_policy 将创建一个会跳过被跳读分析器所匹配的内容的扫描器迭代策略。scanner_policies 类封装了包括迭代策略在内的所有与扫描器相关的策略。

Standard in work out process, learned to have investigation and study about active state law, code, policy and standard;, the experience; that began necessary special subject research and technical argumentation; to sum up craft of puddling of old blast furnace to design sought the opinion of concerned production, design, school extensively, the delibrate that the problem that exists to puddling undertook iteration and revise, final classics censors text.

规范在编制过程中，学习了有关现行国家法律、法规、政策及标准；进行了调查探究，开展了必要的专题探究和技术论证；总结了多年高炉炼铁工艺设计的经验；广泛征求了有关生产、设计、院校的意见，对炼铁存在的新问题进行了反复的研讨和修改，最后经审查定稿。

When the sojourn time of deteriorating state, inspection interval and maintenance time are the stochastic variables which follow the general distribution, the phase-type approach is proposed to preserve the analytical tractability of the transition probability matrix. To solve the problem that the PH distribution changes the state space of system, the value iteration algorithm for the semi-Markov decision process is improved to get the optimal inspection and maintenance policy.

针对模型中劣化阶段停留时间满足一般分布的情况，提出了一类基于位相型分布拟合的近似处理方法，将物理意义上的状态进行概率扩展，简化了维修决策的求解过程，并给出了对应的改进迭代算法，同时从理论上证明了该算法的收敛性。

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％。