求最小值 的英文怎麼說
中文拼音 [qiúzuìxiǎozhí]
求最小值
英文
minimization-
In the presented method, the point estimations of the model parameters, aandb in the new model, are given by the least square method. the confidence interval for the parameter b is given as well. an engineering illustration is used to compare the result of the presented method with those of amsaa - bise model and duane model
該模型充分考慮了增長過程中的各種可得信息,採用非參數方法得到多臺系統在各同步停止試驗時刻的可靠度,並利用最小二乘法擬合求得該模型中參數a , b的點估計值,以及b的置信限。In digital relay, the percentage of noise will increase rapidly with the increase of sampling rate when derivation calculus is substituted by sampled difference term. to solve this problem, a new method using fragment function integrated with the least square algorithm is proposed in this paper. the influence of white noise is greatly reduced and the accuracy of the dead angle calculation is nicely improved after adopting the new method
在數字式保護中,如果用差分代替求導將導致噪聲的百分比誤差隨著采樣頻率的提高而劇增,本文對此進行了分析並提出了用分段樣條函數最小二乘法來計算電流波形的導數值,以便在提高采樣率的同時降低噪聲誤差的影響,並將其應用於基於32位浮點dsp的新型變壓器保護裝置。The model aims at minimizing the sum of braces stiffness at given story drift angle limitation
它的特點是在相同的層間位移角限值下,所求得的框架各層耗能支撐剛度之和最小。The first one : fitting together ultimate values of every dimensions in one dimension - chain one by one, educing many equations by itself, calculating results, and comparing these results of close dimension to find maximal and minimal values. the second one : projecting all dimensions on two preestablished axis, then providing the solutions to analyze whether every projected dimensions is increscent or decreasing, and synthesize the effect of every projected dimensions to close dimension, educing many equations by itself, at last calculating the result of close dimension. the third one : according to monte carlo analysis, getting every dimensions " values from every dimensions " tolerances at random time after time, simulating the actual circumstances of mass production using these dimensions, and calculating reasonable results of close dimension economically
鑒于這類系統在各大中小型企業的廣泛應用與相對滯后的研究水平,本文提出了三種新的能切實地解決目前尺寸鏈計算機輔助分析解算中存在的各種難題的設計方案,第一種方案將尺寸鏈中各組成環能取的極值組合起來,自動列方程組,求解每個組合情況下的封閉環尺寸,最後比較這些結果,得出封閉環的最大最小值;第二種方案將尺寸鏈各組成環向預先設定好的兩個方向投影,之後再分析各尺寸環投影分量的增減性,並且提供了組成環兩個方向上的投影分量增減性不一的復雜情況下的解決辦法,綜合組成環各投影分量的增減性,然後自動列出方程組,最後根據各組成環的投影分量以及所列的方程組來確定尺寸鏈封閉環的尺寸;第三種方案以蒙特卡洛法為原理,在尺寸鏈各組成環的取值范圍內使用計算機產生大量隨機數,模擬實際大批量生產中的零件尺寸分佈情況,以更經濟更合理的方式分析、計算封閉環尺寸。Finally, the solution of minimizing the energy function was obtained by using the modified greedy algorithm, after which, the precise contour of the object was extracted
用改進的貪婪演算法求得能量函數最小值,提取出運動目標的精確輪廓,從而得到具有精確邊緣的運動目標。And others are found, and the expression of minimum rate of energy dissipation of flow is re - derived based on the theory of minimum entropy production. ( 2 ) it will be pointed out that the entropy is different from the entropy production in a river system
( 2 )指出河流系統中的熵與熵產生是兩個不同的概念,沖積河流在調整過程中,力求使水流的熵產生或能耗率趨于最小值,而不是使熵趨于最大值。The background is in charge of dealing with data, including digital filter, differential, the max, the min, drawing, and so on
后臺機負責數據處理。包括數字濾波、求導、求最大最小值、畫圖、數據保存、圖形列印、圖形放大等。Actually, this is to resolve an over - determined nonlinear system including six output values and eight input values. so newton - gauss iterative algorithms is used, set up the target function in the sense of the least squares. it is discussed whether the minimal solution to the function exist and is single one while the astringency of newton - gauss method is analyzed
對于冗餘驅動振動臺,其位姿正解是求解具有八個輸入、六個輸出的超定非線性方程組,因此本文採用了最小二乘法中的牛頓?高斯迭代法,建立最小二乘目標函數,對目標函數極小解的存在性、唯一性以及牛頓?高斯迭代法的收斂性進行了理論證明和分析,將求出的最小值作為位姿正解的最優解。In data communication, the addition of equipment to a leased voice - grade channel to provide minimum values of line characteristics required for data transmission
在數據通信中,在租用的音頻通道上增加設備以提供數據傳輸所要求的線路特性的最小值。From the point of view of producer, the model in this paper deals with an inbound material - collection problem. an integrated inventory - transportation system is developed with a modified periodic - review inventory policy and a traveling - salesman component
生產商庫存配送一體化優化模型主要通過分別求解周期檢查補給倉庫的庫存控制問題和配送問題來求解庫存配送一體化問題,並得到長期平均總成本的最小值。Calculating minimum values by holder ' s inequality
巧用赫爾德不等式求最小值Using the voltage stability graph, the voltage stability margin can be known. the bus participation factors can be computed from the left and right eigenvectors associated with the minimum eigenvalues
在求最小特徵值的同時,求出該最小特徵值對應的左、右特徵向量,利用左、右特徵向量來計算在最小特徵值為零時的換流母線參與因子。The dissertation suggests a series of algorithms to compute the sets and numeric data based on the vp - md model. to obtain the minimal reduction of attributes and the minimal reduction of values, the dissertation provides a csbark algorithm based on the context sensitivity ( cs ) of attributes and a minimal rules set algorithm based on value core
本文研究了基於vp - md模型計算粗糙集理論所涉及的數字量和集合量方法,並針對最小屬性約簡和最小值約簡這兩個np問題提出了基於屬性上下文敏感度的啟發式屬性約簡演算法? csbark演算法和基於值核的最小規則集求解演算法。A distinguishable faults test generation method for digital circuits is presented. the features of basic gate circuits and neural networks are used to establish the test model, and to generate the test patterns for given faults. the fault model and constrained circuit are studied. some strategies, e. g, the reduction of the size of neural network, are proposed in order to accelerate test generation process. the experimental results demonstrate that the algorithm proposed in the paper is effective
研究一種基於人工神經網路的能區分故障的數字電路測試生成方法,該方法利用電路基本邏輯門的特性和神經網路模型的特點,首先建立測試生成的神經網路模型,然後通過求解網路能量函數的最小值點獲得給定類型故障的測試矢量,其研究結果在可區分故障的測試生成方面提供了一種可能的新途徑Provides steps for requiring users to enter a value that is between a minimum and maximum value numbers or text
提供有關步驟,說明如何要求用戶輸入介於最小值和最大值之間的值(數字或文本) 。Taking all the interval number s in the equations as optimal design variables and representing the lower and th e upper bounds of each interval number as the boundary constrain of the variable respectively, the maximum and the minimum of various components of the solution are achieved by using the constrained optimization method
將方程組中的所有區間數都作為設計變量,區間量的變化區間作為相應的設計變量的邊界約束,運用約束優化法求出方程組解的各元素的最大值和最小值。Motivated by the practical requirements of robot path planning, a generalized constrained optimization problem gcop with not only logic and but also logic or relationships was proposed and a mathematical solution developed previously. this paper inherits the fundamental ideas of inequality and optimization techniques from the previous work, converts the obstacle avoidance problem into a semi - infinite constrained optimization problem with the help of the mathematical transformation, and proposes a direct path planning approach without cspace calculation, which is quite different from traditional methods. to show its merits, simulation results in 3d space have been presented
他們在早期的系列研究中: 1提出了更一般的非線性優化問題generalized constrained optimization problem ,簡稱gcop ,即約束間的邏輯關系不但有「與and 」的關系,而且還有「或or 」的關系,並給出了在實際應用中可行的數學求解方法2利用了計算機圖形學中的constructive solid geometry csg方法來構建障礙物的不等式表述3將計算機cad中的插值方法與優化理論結合半無窮維優化,克服了路徑規劃問題中的局部最小值問題。And the improved potential field model is used in path planning with dynamic environment the results of simulation have verified that the method can solve the problem effectively, even though there are stochastic moving obstacles in the surroundings. the third part describes the local minimum of the khatib artificial potential field model and its cause. a new way of optimizing the path using improved potential field approach with genetic algorithm was proposed
再次,分析khatib人工勢場模型存在的局部最小點問題和產生原因,為了解決由於模型參數的隨機性帶來的局部最小值問題,提出一種基於改進的人工勢場模型的遺傳演算法搜索方法,並用該方法來尋求全局最優解,從而跳出函數的局部最小點,達到路徑最優。The fifth chapter outlines problem ' s feature and problem solving ' s background and implication, explores a little recognition of problem solving ' s process teaching, and commentates its good points by the instances of seeking functional maximum and dumping water ' s method
第五章簡述了問題的特徵、問題解決的背景及含義,探討了對問題解決進行過程教學的幾點認識,並以求函數的最小值和探討倒水方法為例評述了對問題解決進行過程教學的長處。It tells in detail the detection based on hopfield neuralnetwork ( hnn ), which translates the problem of minimizing the objective function ofthe optimal mud into resolving the minimization of energy function for hnnand hasthe disadvantage of easily getting into the local minimization of energy function
重點介紹了基於hopfield神經網路多用戶檢測器,該檢測器將求解最優用戶檢測器的目標函數的最小值問題轉化為求解hopfield神經網路能量函數最小值的問題,但hopfield神經網路存在易陷入能量函數局部最小點的缺點。分享友人