The application of the Logistic model is the most widely in describing the development tread of urbanization in region.Because the result that the urbanization process isn’t in accordance with the Logistic model was ...The application of the Logistic model is the most widely in describing the development tread of urbanization in region.Because the result that the urbanization process isn’t in accordance with the Logistic model was given by some researchers on the basis of the case analysis since 1949,the Logistic model is modified according to the means of urbanization.The modified Logistic model is used to the statistical analysis on the development trend of urbanization in China.The result of case research shows that the modified Logistic model illustrates the trend of urbanization in China basically.展开更多
The evaluative indices system of cities at county level development quality is constructed.According to the goal value of every evaluation and the model of synthesis evaluation,the development quality of 27 cities at ...The evaluative indices system of cities at county level development quality is constructed.According to the goal value of every evaluation and the model of synthesis evaluation,the development quality of 27 cities at county level in Jiangsu provincial is analysed comprehensively from 2000 to 2002.The quantitative model in common condition that measures the degree of harmony development between the qualitative systems of city is used.The development harmony of 27 cities qualitative systems is studied separately on the basis of the model of harmony degree and the synthesis evaluation result in three years urbanization process lately.展开更多
基于广义特征值的最接近支持向量机(Proximal Support Vector Machine via Generalized Eigenvalues,GEPSVM)是一种新的具有与SVM性能相当的两分类方法,通过求解广义特征值来获得两个彼此不平行的拟合两类样本的超平面.其决策是将测试...基于广义特征值的最接近支持向量机(Proximal Support Vector Machine via Generalized Eigenvalues,GEPSVM)是一种新的具有与SVM性能相当的两分类方法,通过求解广义特征值来获得两个彼此不平行的拟合两类样本的超平面.其决策是将测试样本归为距其最近的超平面所在的类.然而,该规则在某些情形会导致较差的分类结果.对此,在GEPSVM基础上,通过在类拟合超平面上寻找一个包含了所有训练样本投影的局部凸区域,来决定样本的类别.该局部方法不仅具有较GEPSVM更优的分类性能,同时还衍生出了求解超平面上凸壳的简单且易于核化的新算法.最后在人工和UCI数据集上获得了验证.展开更多
文摘The application of the Logistic model is the most widely in describing the development tread of urbanization in region.Because the result that the urbanization process isn’t in accordance with the Logistic model was given by some researchers on the basis of the case analysis since 1949,the Logistic model is modified according to the means of urbanization.The modified Logistic model is used to the statistical analysis on the development trend of urbanization in China.The result of case research shows that the modified Logistic model illustrates the trend of urbanization in China basically.
文摘The evaluative indices system of cities at county level development quality is constructed.According to the goal value of every evaluation and the model of synthesis evaluation,the development quality of 27 cities at county level in Jiangsu provincial is analysed comprehensively from 2000 to 2002.The quantitative model in common condition that measures the degree of harmony development between the qualitative systems of city is used.The development harmony of 27 cities qualitative systems is studied separately on the basis of the model of harmony degree and the synthesis evaluation result in three years urbanization process lately.
文摘基于广义特征值的最接近支持向量机(Proximal Support Vector Machine via Generalized Eigenvalues,GEPSVM)是一种新的具有与SVM性能相当的两分类方法,通过求解广义特征值来获得两个彼此不平行的拟合两类样本的超平面.其决策是将测试样本归为距其最近的超平面所在的类.然而,该规则在某些情形会导致较差的分类结果.对此,在GEPSVM基础上,通过在类拟合超平面上寻找一个包含了所有训练样本投影的局部凸区域,来决定样本的类别.该局部方法不仅具有较GEPSVM更优的分类性能,同时还衍生出了求解超平面上凸壳的简单且易于核化的新算法.最后在人工和UCI数据集上获得了验证.
