查询词典 regularization

This problem has been overcome with an iterative inversion that uses an imaging operator and its adjoint along with a regularization operator.;The imaging operator used in the inversion process is a linear operator relating reflectivities to data.

这个问题已经克服了迭代反演，使用成像算子及其伴随连同正规化运营商。；的影像操作中使用的反演过程是一个线性算子有关的反射率的数据。

Adjoint assimilation method is employed to solve the problem with regularization techniques in inverse problem.

利用伴随同化方法及处理数学物理反问题的技巧对该问题进行了数值研究。

And the author integrated the ship maneuvering, numeric analysis, the solution method for inverse problems and the control theory, and made the decision that the regularization method is adopted to obtain the coefficients of ship maneuvering, and that immune genetic algorithm is used as the numerical algorithm of the regularization method.

通过分析，综合船舶操纵性，数值分析，反问题的数值解法和控制理论等相关知识，决定采用正则化方法反演船舶操纵运动相互干扰系数，用结合免疫遗传算法的正则化方法作为数值解法来建立船舶操纵运动灰箱模型。

Main attention is paid on the third part; in this part several kinds of method to physical geodesy regularization problem are discussed, which are Tikhonov regularization, truncated singular value decomposition, biased estimation and least squares collocation.

在经典小波变换的基础上引入了球面小波概念，证明了Possion积分核是小波尺度函数，在尺度离散基础上证明了球外重力场处于一个多尺度空间。

When it comes to the local prediction of chaotic time series, owing to the fact that the fixed embedding dimension、the number of the nearest neighbours and regularization parameters can cause the added prediction error,we give the adaptive local linear method and discuss the adaptive selection method of regularization parameters, the advantage of which is tested by the Henon map and Lorenz system simulated data and the integrated index in stock market of Shanghai, to show its practicable value.

通过Henon映射和Lorenz系统的仿真和上海证券市场综合指数的实证分析，说明了基于正则化回归的自适应局部线性化方法能减小预测误差、提高计算精度。

The penalty optimal brain surgeon is a post-training algorithm and it has extreme high complexity. The OBS oriented compute model implemented neural network training and OBS pruning simultaneously, by taking the OBS pruning case as a penalty term of neural network objective functions based on optimized structure of the regularization method included in the neural network training process. It both maintained the OBS's accuracy and had regularization method's high efficiency. Raised the generalization of neural network model.

最优脑外科过程是一种训练后网络剪枝算法，计算的复杂度非常高，通过把剪枝条件以惩罚项的形式纳入神经网络的训练目标函数中，把正则化方法的结构优化蕴涵于网络训练过程，构建面向最优脑外科过程的计算模型，实现网络训练过程和最优脑外科过程并行剪枝，既保持了最优脑外科过程的准确性，又具有正则化的高效性，提高了神经网络模型的泛化性能。

This paper presented two regularization methods to solve this problem in SONAH: the standard Tikhonov procedure accompanied with two parameter selection procedures, the Morozov's discrepancy principle and the Engl's criterion, which were crucial to the regularization.

为此，通过两种不同的正则化方法解决上述问题：第一种方法采用标准的Tikhonov正则算子，并结合需要测量信号先验知识的Morozov偏差原则；第二种方法采用标准的Tikhonov正则算子，并结合不需要测量信号先验知识的Engl误差最小化原则。

We present an inverse method based on Tikhonov regularization theory. A regularized functional is established and regularization parameters are deduced with Arcangeli criterion and Morozov discrepancy principle. The functional is solved by sensitivity coefficients and Newton-Raphson iteration method.

充分考虑非线性瞬态热传导过程测温数据的误差特点，根据Tikhonov正则化理论，构造合适的正则化泛函，利用Arcangeli准则和Morozov偏差原理确定正则参数，采用灵敏度系数和Newton-Raphson迭代法求解该泛函。

In accordance with the large scale and badly Ill-condition of image restoration,this thesis presents a class of regularized PCG algorithm which combines PCG algorithm and some regularization strategies.These strategies include the construction of new preconditioner,the adoption of optimum stopping rule and the extrapolation techniques of RPCG-solution with respect to regularization parameter.

本文针对图像恢复中问题规模大且病态严重等特点，将现行的PCG算法和若干正则化策略相结合，提出了一类正则化的PCG算法，这些策略包括：新预处理子的构造，最优停止准则的采用，关于正则参数的RPCG—正则解的外推策略。

In this paper, the functions and the fashions of regularization are discussed when traveltime tomography is reduced to the solution of linear equation system, the functions of regularization include: constraint components which are underdetermined or lie in null space using overdetermined components and all kinds of known information; treat the uneven coverage of rays and the inaccurate datas by damping.

反射地震走时层析最终可归结为线性方程组的求解，本文讨论了在线性方程组求解过程中正则化的作用和方式。正则化的作用有：(1)用超定分量约束欠定分量和零空间分量；(2)用先验信息约束欠定分量和零空间分量；(3)对射线的不均匀覆盖进行阻尼；(4)对数据的不准确性进行阻尼。

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％。