查询词典 hidden line algorithm

In the algorithm,a kind of merit function and the schemes of nonmono-tone line search are used to have the algorithm be of the global convergence andsuperlinear convergence and have the algorithm be of a extended application range,especially at time of the feasible initial point is hard to be obtained.

该方法适用于任意的起始点。并且使用了一类效益函数，ε—积极约束策略及非单调线搜索，从而使算法保持了整体收敛性和局部超线性收敛性，并具有较广的适用范围，尤其在可行的起始点难于得到的情况下。

In accordance with the generating principle of line echo and after analyzing main echo cancellation algorithms, and after in-depth study on the core algorithms of all the module of adaptive echo canceller, in particular, adaptive filtering algorithm and double talk detection algorithm, considering with complexities and capabilities of all the candidates, this paper chooses NLMS algorithm to implement echo canceller.

首先，对回波产生原理和目前几种常用回波消除算法进行了分析，在研究自适应回波消除器的各个模块，特别是深入分析各种自适应滤波算法和双讲检测算法，综合考虑各种算法的运算复杂度和性能的情况下，这里采用NLMS算法实现白适应回波消除器。

Substituting other faster algorithm of NN for the BP algorithm in it, we get a new non-line homotopic synthetic learning algorithm, which increases the speed of convergence and improves the ability of avoiding local minimum.

在此基础上，进一步提出用其它改进的神经网络快速算法代替其中的BP算法，从而形成新的非线性同伦综合学习算法，即保持了快速收敛的特点，又较大地提高其避免陷入局部极小的能力，收到很好的训练效果。

First, the time series model of the random road roughness running by construction machinery is built up based on the measured data of the random road roughness and by means of the basic theory and method of the time series analysis. A real-time parameter estimation method of fuzzy weighted recurrence least square algorithm is represented through analyzing the conventional recurrence least square algorithm. Then, the new recurrence algorithm and the on-line tuning method of the weighted matrix are given out, and computer simulation is performed.

首先，以实测的地面随机不平度数据为依据，应用时序分析的基本理论和方法，建立了工程机械行驶地面随机不平度的时间序列模型，并在分析传统参数估计方法递推最小二乘算法的基础上，提出了模糊加权递推最小二乘算法的参数实时估计方法，给出了在此基础上的递推算法及加权矩阵的实时在线整定方法，并对其进行了计算机仿真研究。

In this paper, a lot of research works of algorithms of mining CAD has been done. Many important mine specialty graph operation algorithms have been put forward. The main results are as follows: polygons cut out algorithm, two close polygons mutual, merge and subtract algorithm, polygon vector fill, any vector polygons area calculating and sequence polygons or multifold which has the direction and region area calculating, curve smoothing, graph element search for any region, graph element attrib collect in any region, parallel polygon or vector intersection-point push out or pull in, ore reserves and grade calculating for any type polygon, mine spatial data searching and boundary line tracking and automatic link algorithm etc.

论文在矿山图形算法研究方面做了大量的工作，提出了许多有价值的矿山专业图形运算算法，主要算法有：多边形裁剪算法、闭多边形的加、减、并算法、多边形的矢量填充算法、任意有向多边形、有向多连域、有向多边形序列面积算法、多种曲线光滑算法、任意区域的图元搜索算法、任意区域图元属性提取算法、多边形平行外推/内缩算法、任意多边形储量品位计算、矿山空间数据搜索算法、界线的自动追踪和连接等。

An algorithm of 3D coordinates calculation method is proposed based on the principle of Line-Point Matching Algorithm. The determination and solution to the abnormalism of this algorithm are discussed in detail.

提出了基于直线一点匹配原理的焊缝三维坐标算法，讨论了这种算法的奇异性判据和解决措施。

The evaluation method and algorithm of shape error (roundness, plane straightness, space straightness, cylindricity) were discussed. A new kind of algorithm, namely mesh searching method, which can be used to evaluate the roundness error, plane straightness error, space straightness error and cylindricity error, were put forward. With this algorithm, the shape error can be obtained by transferring the distance formula repeatedly and simple judgment without linearzing the distance formula (from point to point or point to line) and choosing optimal direction and step length.

对形状误差(圆度、平面直线度、空间直线度、圆柱度)的评定方法及算法进行了讨论，提出了一种评价圆度误差、平面直线度误差、空间直线度误差及圆柱度误差的新算法——网格搜索法，该算法不需要对距离公式线性化，也不需要选定优化方向和优化步长，只需重复调用距离公式和简单的判断即可得到符合定义的形状误差。

The digital closed-loop control system is designed and the dissolutive oxygen control algorithm is given out using neural PID algorithm. The traditional PID algorithm is optimized by neural network cell method and the weight value of NNC is generated on-line.

设计了全数字化的闭环控制系统，以溶解氧指标为控制对象进行了控制算法设计，针对转刷曝气工艺的特点，采用神经PID调节算法，引入了线性神经元对经典PID算法进行优化、应用梯度下降法对NNC网络权值进行在线计算。

The main role for the Line-Up Competition Algorithm LCA is in global research, while Speediest Descent Algorithm is in local search. The computations show that the hybrid algorithm is superior to single one.

其中，列队竞争算法的主要作用是实现全局搜索，而梯度法的作用是实现局部寻优，这两种方法的结合，可以使全局搜索与局部搜索达到均衡和统一。

Line L4: Abeam abeam Maji Shan No.2 buoy （30°37′.30 N/122°30′.53E）.5.Line C1: the connection line between Xiaocaihua Light beacon and the west end of Zhoushan Dao（30°10′.0N/121°56′.0E）.6.Line C2: the connection line between Xiaocaihua Light beacon and the north end of Jintang Dao（30°05′.2N/121°52′.4E）.

南下船舶或设施拟通过西堠门、桃夭门大桥通航孔时，应当在抵C1报告线30分钟之前，向VTS中心报告船舶动态、水面以上最大高度和拟通过的通航孔大桥名称。

The shaping method of noncircular part and the tool holder's radial motion characters in noncircular turning process are discussed in detail in the thesis.

论文详细研究了非圆零件的成型方法和加工过程中刀架的径向运动规律。

I have not really liked him,I do not like his this kind of disposition.

我没有真的喜欢他，我不喜欢他的这种性格。