检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]武汉大学计算机学院,武汉430072 [2]武汉大学电子信息学院,武汉430072
出 处:《分析仪器》2006年第3期23-26,共4页Analytical Instrumentation
摘 要:本文将遗传算法用于近红外光谱分析中波长及预处理方法的同步选择。对波长及预处理方法同时进行二进制编码,采用主成分回归建模,并将交叉验证均方根差(RMSECV)和定向系数(R2)引入适应度函数。针对传统遗传算法收敛速度慢以及容易陷入局部最优等缺点,采用自适应调整参数。利用油料组分数据进行实验,结果表明,采用遗传算法进行波长及预处理选择是可行的,结果较为理想。Genetic algorithm (GA) was applied to the synchronous selection of wavelength and spectral data pretreatment in near-infrared spectrometric analysis. The wavelengths and pretreatment methods are coded in the same gene (binary code) and the principal component regression (PCR) model is used. The root mean square error of cross validation (RMSECV) and determination coefficient ( R^2 ) are introduced into fitness function. In order to eliminate disadvantages of GA (slow in convergence, partial optimization), the arguments are adjusted with self-adaptive technology. The data of components of rapeseed samples were used for experiment. It is shown that this method is feasible and the results are satisfactory.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.188