查询词典 acceleration of convergence

Y Convergence between pattern and retracement can point to excellent trading opportunities .

模式和回撤的一致给了交易者很好的交易机会。

Moreover the structure of the neural network is further optimized, so the convergence rate of the algorithm is obviously accelerated. At last the robusticity of the algorithm is carefully inspected and the result is perfect, and is worth of research.

在此基础上对网络结构进行了进一步的优化，提高了算法的收敛性，并且对算法的抗噪性进行了检验，结果表明算法的抗噪性良好，有较高的应用价值。

The basic principle and algorithm of Q-learning and related developed algorithms including Q and SARSA is studied. We distinguished between two types of RL algorithms: on-policy and off-policy, and the convergence result of SARSA(0) algorithm was discussed.

研究了Q-学习的基本原理、算法和相关的几种改进算法，如Q算法和SARSA算法；区分了两类强化学习算法：在策略和离策略算法；讨论了SARSA(0)算法的收敛性。

In this paper, we develop a new algorithm called the sequence subsets SART, which decrease the number of subsets after each iteration. Thus we not only accelerate convergence of the reconstructed image but also recover various frequency components of the reconstructed image in early iterative steps.

本文提出序列子集联合代数重建技术，在每次迭代后减少使用的子集个数，这样在加速图像收敛的同时恢复重建图像的各种频率元素。

Combined with the characteristic of the signal model in MC-CDMA systems, this semiblind method solves the problem of slow convergence by the initial channel estimation, estimates the scalar ambiguities by inserting some users' pilots and makes the algorithm complexity low by an iterative operation.

该方法结合MC-CDMA系统信号模型的特点，通过初始信道估计来解决收敛速度慢的问题；通过部分用户的导频符号以及预均衡技术来估计模糊因子；通过迭代算法来降低计算复杂度。

Firstly, an empirical approximation model of stochastic programming is obtained by replacing the probability measure of original program with empirical probability measure. Sequentially, the constrained stochastic programming is transformed into an equivalent unconstrained stochastic programming. Finally, using the epi-convergence theory, the almost everywhere upper semiconvergence of optimal solution set of empirical approximations for stochastic programming is obtained.

首先通过经验概率测度替代初始规划的概率测度得到随机规划的经验逼近模型，然后将带有约束的随机规划问题转化成与其等价的无约束的随机规划问题，最后利用上图收敛性理论，给出了随机规划经验逼近最优解集的几乎处处上半收敛性。

The reconstruction problem is ill-posed, so two optimal criterions, the least module and the smoothness criterion base on Tikhonov regularization technique, are introduced into reconstruction algorithm. Many regularization parameters choice strategies are investigated, and the TPA(Two—Parameter Algorithm) strategy which is based on the Morozov discrepancy principles, is implemented in two regularization reconstruction algorithms.Numerical experiment results show that the nonnegative and smoothness constraint condition can overcome the difficulty of iteration semiconvergent, preconditioned technique can improve convergence rate and reconstruction accuracy, smoothness regularization criterion can meliorate ill-posed problem of reconstruction and enhance iteration stability, and the TPA is an effective strategy of regularization parameters choice.

数值试验表明：在共轭梯度法中引入非负约束和光滑约束改善了迭代的&半收敛&性，非负约束保证了解的非负性，光滑约束抑制了重建解的振荡现象，约束算法的重建精度与无约束算法相比大幅度提高；在约束共轭梯度重建算法中引入预优技术，可以加快算法的收敛速度，提高迭代的稳定性和重建精度；引入光滑准则的正则化技术可以有效改善图像重建问题的不适定性，加快迭代的收敛速度，提高迭代的稳定性和图像重建质量，计算正则参数的TPA算法在闪光照相图像重建中是有效的。

Then a global separable nonlinear least-squares identification method which estimates the time delays and transfer function parameters separably is derived to reduce the possibility of convergence to a local minimum by using the global optimization theory.Furthermore,the GSNLS method is modified to a novel global separable nonl...

为降低收敛于局部最小的可能性，利用全局优化理论，推导了全局可分离的非线性最小二乘辨识方法；为消除强观测噪声所引起的参数估计的偏差，将GSNLS方法调整为一新颖的全局可分离的非线性多新息递推最小二乘辨识方法，仿真实验验证了算法的有效性。

To research the method and estimate the value of flow convergence in the patient with ventricular septal defect.

7研究血流会聚法对室间隔缺损患者分流量定量分析的方法及价值。研究方法

In this paper, we also discuss the theory of the parallel simplex method. Undej the 2-dimensional space case, we present that simplex seriary have some properties, but we adopt some repairing measures. We proof the convergence of the parallel algorithm. At last, We give some numerical examples to indicate that the new idea is sometimes useful and helpful.

本文也对算法做了一些理论分析，主要在二维情形下，讨论了算法形成的单纯形序列本身所具有的性质，并对其做了相应的补救措施，对算法的收敛性给予了证明，最后做了一些数值实验，由于软硬件条件的限制，并行算法未能在并行计算机上实现，鉴于这种情况，我们所做的数值实验均是在串行机上完成的。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。