forward mutation 中文意思是什麼
forward mutation
解釋
正向突變-
The bell - shaped time course of the information entropy indicates that a forward mutation of " - resistant " hosts takes place, since no loss of cellular viability occurs for the second growth phase of reinduced ( i. e. recovered ) cells
從誘導過程之鐘形訊息亂度之時間趨勢表示正向反應變異為-阻抗能力之宿主菌確實已發生，因為再誘導菌相細胞之第二生長期並未發生因感染而失去細胞存活之現象。 -
At first, in order to prevent the premature convergence of genetic algorithm effectively, the author brings forward a novel dyadic floating - point supplementary mutation operator. then, simulating the natural evolution, the author presents a novel topology, unoriented - connected topology, for parallel genetic algorithm. in the end, an interval decomposed optimization method is brought forward for ipga, which can improve the optimization performance of the algorithm
為提高演算法的性能，作者對遺傳演算法進行三種改進：首先，為克服遺傳演算法早熟收斂，作者提出一種新的二元浮點補碼變異運算元；其次，模擬生物自然進化模式，為并行遺傳演算法提出了一個新的并行拓撲結構- - - -無定向拓撲連接；最後，作者提出一種區間分解優化思想，來提高對最優解的搜索能力。 -
Simple genetic algorithm gets local minimization too easily and converges slowly. to solve these problems, adaptive crossover rate that has reverse hyperbolic rel ation with the numbers of iteration is designed, and adaptive mutation rate that has reverse proportion to the distances of parents and reverse exponential relat ion to the numbers of iteration is put forward. the practical simulation results show that the adaptive ga has greater convergence speed and larger probability o f getting the best solution
簡單遺傳演算法存在著收斂速度慢、易陷入局部極小等缺陷.針對這些缺陷，本文設計出隨相對遺傳代數呈雙曲線下降的自適應交換率，並提出與父串間的相對歐氏距離成反比、隨相對遺傳代數指數下降的自適應變異率.實例驗證表明，具有自適應交換率和變異率的遺傳演算法在收斂速度和獲得全局最優解的概率兩個方面都有很大的提高 -
The author expatiated on the basic structure, coding manners, decoding rules, fitness function selection, self - adapted mutation and crossover operator, the judging flow of chromosome feasibility of the algorithm, finally, put forward the computing result with pattern of data table and gantt graph
詳細地闡述了演算法的基本結構、編碼方式、解碼規則、適值函數的選取、自適應變異和交叉運算元的設計、染色體可行性的判斷流程，最後以數據表和甘特圖的方式給出了計算結果。 -
Based on the single genetic algorithms and the features of the distribution network reconfiguration, this dissertation makes a further study on such aspects as selection operator, crossover operator, mutation operator, termination conditions and etc, thus, puts forward improved genetic algorithms. the dissertation makes certain study on the optimization reconfiguration model of distribution network. it puts forward a multi - objective model and according to the theory of variable weight coefficients transforms the multi - objective problem into a single - objective one
針對目前遺傳演算法在配電網路重構應用中的不足，論文著重從選擇運算元、交叉運算元、變異運算元和收斂準則等方面進行了改進，把最優保存策略和兩兩競爭相結合的方法作為新的選擇運算元，採用隨最優個體相對保留代數自適應變化的交叉和變異運算元，把最優個體最少保留代數作為演算法的終止條件。 -
The structure system of this paper is : first to introduce the historical background and relevant definition of decision - making ; then to present the theory frame of error - eliminating and pave the way to follow - up chapters ; the following chapter is core content of this paper : first of all, the relevant definition and characteristics of change of time and space based fuzzy error system are put forward, and then detailed discussions on time delay, mutation, interaction, error category, extreme value of error system and transformation words of error system are conducted
本論文結構體系為：首先系統介紹了決策相關的歷史沿革以及相關的定義和理論；其次介紹了消錯學的理論框架，為后續章節的論述作好鋪墊；再者是本文的的核心部分：首先引入基於時空變化的模糊錯誤系統的定義及相關的性質，而後在各節中分別探討了模糊錯誤系統的時滯，熵變，突變；以及決策錯誤種類分析，錯誤的相互作用，模糊錯誤系統的極值和模糊錯誤轉化詞的應用。 -
A new genetic algorithm based on diffluent mechanism ( dmga ) is put forward. its strategy is that excellent seeds are set limit to reproduce, certified seeds are crossed and bad seeds are mutated. the crossover probability and mutation probability is adjusted by the evolutionary equality
提出一種基於分流機制的新型遺傳演算法（ dmga ） ，該方法採用優種限量繁殖，達標種交叉和劣種變異的策略，交叉和變異概率根據進化質量自適應地調整，使種群具有很強的可進化性。 -
It brought forward genetic algorithms with binary character string coding, genetic operation is the best optional optimization preserving strategy operation, multipoint crossover and nonsymmetrical mutation based on researching widely the genetic algorithms " characteristics of varied coding modes, selection modes, crossover modes and mutation modes in allusion to genetic algorithms is difficult of multi - parameter coding and genetic operation ' s realization for wave impedances inversion
針對遺傳演算法用於波阻抗反演涉及多參數編碼、以及對應遺傳操作不易實現的問題，在廣泛研究了遺傳演算法的各種編碼方式、及其對應的選擇方式、交叉方式以及變異方式特點的基礎上，提出了採用二進制字元串編碼、遺傳操作為最優保存策略選擇、多點交叉和非均勻變異的遺傳演算法。 -
This paper brought forward global optimized wave impedances mixed inversion based on genetic algorithms with binary character string coding, genetic operation is the best optional optimization preserving strategy operation, multipoint crossover and nonsymmetrical mutation based on researching widely the genetic algorithms ' characteristics of varied coding modes, selection modes, crossover modes and mutation modes in allusion to genetic algorithms is difficult of multi - parameter coding and genetic operation ' s realization for wave impedances inversion
摘要針對遺傳演算法用於波阻抗反演涉及多參數編碼、以及對應遺傳操作不易實現的問題，在廣泛研究了遺傳演算法的各種編碼方式、及其對應的選擇方式、交叉方式以及變異方式特點的基礎上，提出了採用二進制字元串編碼、遺傳操作為最優保存策略選擇、多點交叉和非均勻變異的遺傳演算法，基於該演算法形成了全局尋優的波阻抗混合反演方法。 -
According to the characters of the equipment switch, brings forward a new detection method of grayness mutation line ; according to the characters of the broken switch, brings forward a new detection method of the outline slope
研究並分析了幾種常用的圖像識別方法，針對設備開關的識別，提出了灰度突變線檢測法；針對斷電器開關的特點，提出了邊緣斜率檢測法。 -
The paper exploits then method of combining the simulated annealing algorithm with genetic algorithm for the question and designs the coding way which based on ordinal characters, builds up fitness function on the basis of penalty function, adopts the basal technology, such as crossover, mutation etc. to deal with the model and put forward adjustable algorithms for trains occupying time sets
將模擬退火演算法和演化演算法混合起來運用於該問題，設計有序的字元串編碼方法，構造了基於罰函數的適應度函數，採用交叉和變異等技術，求解該模型。並提出了車列佔用時區調整的相關演算法。 -
Based on the point of image - based rendering, and the technology of virtuality and reality combining, it yield the conception of virtual globe and its related thought, and takes the dispersed pixel element mutation as the nucleus, the principle of utilization geometry and graphics, 3d walk around is realized and true sense controls waits has carried on a series of research, has put forward the corresponding mathematical model, and has been in progress the improvement, and has got the better result to the tradition method
本文從基於圖像生成的角度出發，由虛實結合的構思引出了視球及其相關概念，並以離散的像素變換為核心，利用幾何學和圖形學的原理，在三維漫遊的實現及真實感控制等方面進行了一系列的研究，提出了相應的數學模型，對傳統方法進行了改進，得到了較好的結果。 -
Forward mutation assay
正向突變檢測 -
It means that in order to catapult the species of humans forward into a higher consciousness, there is a maximum and minimum mutation that needs to take place to create a new standard of operation
它意味著為了推動這個人類族類往前進入一個更高的意識，有一個極大和極小的需要建立一個新運轉標準的變化。
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