極值尋找法 的英文怎麼說
中文拼音 [jízhíxúnzhǎofǎ]
極值尋找法
英文
extremum seeking method-
The mathematical statistics method and extrema variance clustering method can be used to visible automatic classifying and reading of logging curves. the lithofacies classifying program basing on multi - mineral model analysis presents a new method to analyze logging - facies and more accuracy and visualized logging facies section can be reached by using this method. in addition, it supplies reliable lithologic layering reference for search and evaluation of oil / gas caprock and it also made up for the high cost of core - drilling and the inaccuration between lithic fragment description and depth
採用基於「數理統計-極值方差聚類法」的面向對象可視化操作方法可有效地解決測井曲線的可視化自動分層取值問題；而基於多礦物模型分析的巖相劃分程序又提供了一種新的測井相分析方法，能得到更為準確直觀的測井相剖面，為尋找和評價油氣蓋層提供了可靠的巖性分層依據，同時彌補了鉆井取心費用高和錄井巖屑描述與深度有誤差的缺陷。With the support of methodology and approaches pertaining to medicine, psychology and physiology, this research explores the correlation among speed, roadway alignment, environment and physiological and psychological element of driving behaviors on the basis of abundant data obtained from field study, which lays the foundation for further analysis of what represents a comfortable and safe situation and for the calibration of threshold value of coefficient of transverse force
本研究應用醫學和心、生理學方面的理論方法和研究手段，通過大量的行車試驗，尋找汽車行車速度、道路線形、道路環境與駕駛員行車心、生理需求的內在關系和規律。以此為基礎，研究在山區雙車道公路上行車，緊張與不緊張，安全與不安全的條件，研究橫向力系數等的極限值。In the chapter of character segmentation, the traditional method of finding minimum vertical projections combined with plate license format is used. the use of space mark matching method proposed in this dissertation to ensure the first segmentation position obtains a very high rate of success
在字元分割方面，提出了間隔符區域匹配的方法獲得分割起始位置、並以二值圖像垂直投影尋找極小點結合車牌制式先驗知識的演算法，以消除車牌左右兩端定位精度對字元分割的影響。Firstly, some basic algorithms for inducing decision tree are discussed, including id3, which uses information gain to select a splitting attribute when partitioning a training set ; c4. 5, which can deal with numeric attributes ; cart, which uses gini rule in attribute selection and induces a binary tree ; public, which puts tree pruning in the tree building phase ; interactive method, which puts artificial intelligence and human - computer interaction into the procedure of decision tree induction ; as well as sliq and sprint which are scalable and can be easily parallelized. advantages and disadvantages of these algorithms are also presented
文中詳細闡述了幾種極具代表性的決策樹演算法：包括使用信息熵原理分割樣本集的id3演算法；可以處理連續屬性和屬性值空缺樣本的c4 . 5演算法；依據gini系數尋找最佳分割並生成二叉決策樹的cart演算法；將樹剪枝融入到建樹過程中的public演算法；在決策樹生成過程中加入人工智慧和人為干預的基於人機交互的決策樹生成方法；以及突破主存容量限制，具有良好的伸縮性和并行性的sliq和sprint演算法。The research shows that ngsa has higher ability for global and local search ; it can find all optimum values efficiently ; it is not very rigorous with the selection of control parameters. so it is a multi - modal optimization algorithm with higher capability, efficiency, and reliability
研究結果表明， ngsa演算法具有較強的全局和局部搜索能力，能夠高效地尋找到多個全局極值，且參數選擇不必過分嚴格，是一種優化能力強、效率和可靠性較高的多峰值優化方法。The purpose of studying the structure - activity relationship ( sar ) of vitamin e is to study the difference of the molecular geometry, which has different effect on the reaction activity of the molecule and produce different biological activity. semi - empirical ami and pm3 method and ab initio 3 - 21g methods are applied to optimize the four different geometries of tocopherol in the present work. using the two methods we have obtained some parameters about the biological activity
計算步驟是，先使用hyperchem6構造出各種化合物，用hyperchem自帶的分子力學mm +和polak - ribiere優化方法在目標分子的構象空間中尋找能量相對較低的構象，然後用am1半經驗方法進一步優化其構型，得到一系列能量值，然後利用hyperchem6 . 0其中集成的qsar模塊，計算化合物的qsar參數，其中包括：疏水性參數（ logp ） 、分子表面積、總體積、折射率、極化率等參數。After analyzing the real match position and false match position from the correlation surface, the new method can search the real match position based on the feature of the peak on the correlation surface
由灰度相關計算得到的相關面，通過分析真實匹配位置和虛假匹配位置局部極大值峰的特性，找到了一種基於峰值特徵檢測尋找真實匹配點的方法。Edge detection and contour tracking are very important in computer vision. because the single pixel edges are needed in computer vision, an algorithm of edge detection and contour tracking is proposed using the good local character and multi - scale character of wavelet transform in the dissertation. the fuzzy algorithm is applied to pick the model maximum points, so that the single pixel edge can be obtained
邊緣檢測和輪廓跟蹤在計算機視覺中有著重要的地位，利用小波變換良好的時頻域局部化特性和多尺度特性，針對計算機視覺中需要提取單像素的點線等邊緣的需求，本文提出了一種基於小波變換的邊緣檢測和輪廓跟蹤演算法，通過真正的邊緣點是模的局部極值點這一特點，應用模糊演算法對模極大值點進一步篩選得到單像素級的邊緣，並在邊緣跟蹤時，有效利用原圖像的信息，通過在小鄰域內尋找局部峰值對丟失弱邊緣進行了補償。分享友人