In the end , two simple object functions are built based on the results of parameter analysis , with which to search the optimum ratio of spans by the grid searching method . the static behavior is also compared between the optimized bridge and the basic bridge 最后，以参数分析为基础，采用结构优化思想，建立两个简单的目标函数，运用网格搜索法寻求最优跨径比值，并对优化后的桥梁与基准桥受力进行对比分析。
According to the geometrical characteristic of the arch dam shape , and based on the parameter design language of ansys software ( apdl ) , the subp method and the stochastic search method are adopted together to optimize design of hyperbolic arch dam with variable thicknesses of the circle 摘要根据拱坝体形的几何特征，基于ansys软件的参数化设计语言( apdl ) ，将零阶近似方法和随机搜索法结合起来对单圆心变厚度双曲拱坝进行了优化设计。
Concerned the discrete area of the steel shape , a method is presented : searching the best solution of continual variable first by criteria , and next searching optimal solution by the direct - searching method of mixed variable on the original point of the continual result 虑到型钢截面的离散化，本文对多层轻钢框架结构优化提出一种近似的处理方法，即先用准则法求得连续变量最优点，然后将其结果作为混合变量直接搜索法的初始点进行第二步优化。
These algorithms can be modified by changing the manner in which the algorithm narrows down the search area . this paper proposes a new algorithm for fast block - matching motion estimation . it combines the advantage of both tts and ds and makes the search result more effective 最后通过实验证明,结合多种常用的简单的搜索法的优点总结出来的象限归类搜索法,与其他快速搜索法相比,在减少运动估计的计算时间和提高运动估计的准确性上都有了一定的改善。
7 . based on the comparison with dual band gps phase and c / acode , ambiguity function method , least squares search , ambiguity solution covariance , cholesky disintegrate and least square ambiguity decorrelation adjustment , it is considered the method of ambiguity function using double gps antennas to move baseline and the equation of dual differential carrier phase 在分析双频p码伪距法、模糊度函数法、最小二乘搜索法、模糊度协方差法、 cholesky分解法、和lambda算法的基础上，重点研究基于双gps天线动一动基线载波相位双差整周模糊度确定方法。
Secondly , around the present research situation about the interaction analysis of structure and foundation , this dissertation gives a detail review . based on the 3 - d non - thickness jointed element theory , a new model is proposed which simulates the tangential slip effect of the jointed face . by means of increment loads searched automatically methods , the program is achieved to validate the feasibilities of the model 其次，本文对结构和基础的接触问题研究现状进行了回顾分析，并在“空间无厚度接触单元”的基础上，提出了模拟接缝面切向滑动的本构关系，采用“变增量搜索法”进行计算，通过算例分析得到了该模型的合理性、实用性验证。
It is believed by these algorithms that very good matches are likely to be found in the vicinity of reasonably good matches . although this assumption might not be necessarily true , it is useful for reducing the computation as the search can be broken down into stages where the algorithm successively narrows down on the regions of good matches . there are a large number of algorithms that make this assumption and these may be classified as algorithms based on the principle of locality 目前用于计算运动向量的快速搜索法经常因为陷入局部最小而不能准确的计算到运动向量或者计算量过大让人不能接受,提高运动向量估计的计算速度对于实时视频压缩编码有着重要的意义,更重要的是要在保证估计精确度的前提下提高提高运动向量估计的计算速度,常见的搜索法往往不能在陷入局部最小和计算量上找到一个合适的平衡点。
Traveling salesman problem is combinatorial optimization problem in graph theory , it has npc computation complexity , and lots of problem can transfer to traveling salesman problem . the computation of tsp is analyzed , then the hopfield network method for solving tsp is given , at last we solve 10 - citys traveling salesman problem and chinese traveling salesman problem by using chaos neural network modeling 首先分析了旅行商问题在穷举搜索法下的工作量；其次给出了求解旅行商问题的hopfield神经网络方法，同时分析了利用人工神经网络求解旅行商问题所存在的问题；最后利用混饨神经网络模型求解10城市旅行商问题和中国旅行商问题。
Consequently , the paper investigates the following aspects about the network adjustment theory and practice for airborne gravimetry , m oreover , some questions correlated with solving the adjustment problem are discussed in detail . 1 . based on actualities of airborne gravimetry , two practical methods of searching crossovers are proposed , i 为此，本文从以下几个方面对航空重力测量测线网平差的理论与方法及相关内容进行研究，并得出若干初步结论： 1 、结合航空重力测量的实际情况，提出了两种实用的交叉点搜索方法，即跳跃搜索法和图形辅助搜索法。
The self - tuning algorithm of the parameter adopts eigenvalue of the systemic error and derivative error and so on . thus this method can overcome the disadvantage of the previous method which make the calibrating date not match up to the moveable track of the system , and improve the adaptability , rapidity and robustness of the human simulating intelligent control ' s algorithm 该方法将误差、误差导数等特征量引入参数在线校正公式，克服了以往采用盲目搜索法时校正量与系统实际运行轨迹不匹配的缺点，提高了仿人智能算法的适应性，快速性和鲁棒性。
