早教吧作业答案频道 -->英语-->
英语翻译Criticalparametersofageneticalgorithmaresizeofthepopulation,mutationrate,numberofiterations(i.e.generations),etc.Inthisstudy,populationsizeof50,crossoverrateof1.0,mutationrateof0.1,bitnumberforeachvariableof
题目详情
英语翻译
Critical parameters of a genetic algorithm are size of the population,mutation rate,number of iterations (i.e.generations),etc.In this study,population size of 50,crossover rate of 1.0,mutation rate of 0.1,bit number for each variable of 16 and number of generations of 2500 are employed.Optimization history with iterations for warpage is shown in Fig.7.Since GA converges to an optimum after about 250 iterations,optimization history only up to 250 iterations is demonstrated in Fig.7.Warpage values on reference points for before and afteroptimization arecompared in Table 6.As seen inTable6,warpage values at most of the reference points are reduced significantly although they are slightly increased at some points.When maximum warpage is considered,it is seen that maximum warpage on the lamp base model,which is2.47mm before the optimization,is reduced to 1.32mm by 46.5% after optimization.In Table6,(-)and (no sign,i.e.+) values indicate reduction and increase in warpage respectively at reference points.
加上这一段基本就要全部完成了,
Critical parameters of a genetic algorithm are size of the population,mutation rate,number of iterations (i.e.generations),etc.In this study,population size of 50,crossover rate of 1.0,mutation rate of 0.1,bit number for each variable of 16 and number of generations of 2500 are employed.Optimization history with iterations for warpage is shown in Fig.7.Since GA converges to an optimum after about 250 iterations,optimization history only up to 250 iterations is demonstrated in Fig.7.Warpage values on reference points for before and afteroptimization arecompared in Table 6.As seen inTable6,warpage values at most of the reference points are reduced significantly although they are slightly increased at some points.When maximum warpage is considered,it is seen that maximum warpage on the lamp base model,which is2.47mm before the optimization,is reduced to 1.32mm by 46.5% after optimization.In Table6,(-)and (no sign,i.e.+) values indicate reduction and increase in warpage respectively at reference points.
加上这一段基本就要全部完成了,
▼优质解答
答案和解析
遗传算法的临界参数是 :初始群体大小,变异率,迭代步数,例如繁殖数等.在这课题中,初始群体大小是50,交叉率是1.0,变异率是0.1,采取了每个16的变动及2500的迭代数的数位.优化历史包括翘曲历程显示在数字7.遗传算法在约250个迭代步数后聚集于最优化,优化历史仅上升至250个迭代步数就证明到数字7 .翘曲值域在参考各点的优化值先后被合并在列表6.如列表6所示,翘曲值在大多数参考点明显减少,尽管他们在某些点略微增长.当考虑到最大翘曲度时,看来在灯基模型上,最大翘曲度在最优化前的2.47mm,有46.5%的几率在最优化后就减少到1.32mm .在列表6中,(-)和(无符号,也就是+)值域表示翘曲度在各自的参考点的减少和增加.
看了英语翻译Criticalpar...的网友还看了以下:
设A为n阶矩阵,证明:R(A+I)+R(A-I)>=n已知R(A)=R(kA),k≠0;R(A+B 2020-05-14 …
i的i次方等于多少,写成x+yi的形式如题:i^i=?写成x+yi的形式,其中要求x和y都是实数. 2020-06-12 …
求自然拼音发音规律个别字母就算了,要说特例.比如c后接i,e,y时/s/,其它时候发/k/.g在后 2020-06-17 …
用以下英文宇母填在上a,a,a,a,a,a,b,e,e,d,e,e,e,e,e,e,f,g,g用以 2020-06-24 …
一直z=(2+i)(1+1/i){i为虚数单位}则复数Z在复平面上所对应的点位于几象限我算的是3+ 2020-07-03 …
P=A(1+i)^-1+A(1+i)^-2+A(i+i)^-3+……A(1+i)^-n(1)将两边 2020-07-25 …
高等数学题:设映射f:X→Y,若存在一个映射g:Y→X,使g*f=I,f*g=J,其中I,J分别是 2020-07-30 …
高等数学题:设映射f:X→Y,若存在一个映射g:Y→X,使g*f=I,f*g=J,其中I,J分别是 2020-07-30 …
已知复数ω满足ω-4=(3-2ω)i(i为虚数单位),z=5/ω+|z-2|,若z的平方根为a=b 2020-08-02 …
一道挺难的数学题i*i=-1则x*x=-1可变为x=+i或-ii还具有以下性质:i=ii*i=-1i 2020-11-01 …