Population aging has become normal in Chinese society,but the existing governance models and institutional arrangements still lack a structured and systematic response and adaptation,and the corresponding governance r...Population aging has become normal in Chinese society,but the existing governance models and institutional arrangements still lack a structured and systematic response and adaptation,and the corresponding governance research has also encountered difficulties.Policy choices for the governance of China’s aging society should be based on“Chinese characteristics,”which should be developed into“Chinese advantages”in order to achieve a transformation from fragmented management to holistic governance and from a focus on the elderly population to an emphasis on the entire life cycle of the whole population,as well as the policy adjustment logic of changing from“making population change adapt to institutions”to“making institutional change adapt to population.”The current strategy for an aging society and policy arrangements should conduct strategic allocation from the standpoint of China’s demographic situation and the laws governing the development of aging.We need to recharge our ideas and innovate our systems on the basis of our cultural and institutional heritage and should set up a comprehensive and dynamic socioeconomic support system based on pluralistic co-governance and sustainable development.We should also strengthen research on the evolution of the elderly population and the development of the aging society of the future,and on this basis select an entry point for policy readjustment and even reconstruction.展开更多
The HASM(high accuracy surface modeling) technique is based on the fundamental theory of surfaces,which has been proved to improve the interpolation accuracy in surface fitting.However,the integral iterative solution ...The HASM(high accuracy surface modeling) technique is based on the fundamental theory of surfaces,which has been proved to improve the interpolation accuracy in surface fitting.However,the integral iterative solution in previous studies resulted in high temporal complexity in computation and huge memory usage so that it became difficult to put the technique into application,especially for large-scale datasets.In the study,an innovative model(HASM-AD) is developed according to the sequential least squares on the basis of data adjustment theory.Sequential division is adopted in the technique,so that linear equations can be divided into groups to be processed in sequence with the temporal complexity reduced greatly in computation.The experiment indicates that the HASM-AD technique surpasses the traditional spatial interpolation methods in accuracy.Also,the cross-validation result proves the same conclusion for the spatial interpolation of soil PH property with the data sampled in Jiangxi province.Moreover,it is demonstrated in the study that the HASM-AD technique significantly reduces the computational complexity and lessens memory usage in computation.展开更多
基金part of both a key project (71490735)a general project (71874031) of the National Natural Science Foundation of China+1 种基金a phased achievement of the Youth Fund project (18YJC840017) for Humanities and Social Sciences of the Ministry of Educationsupported by the research and development fund of the School of Social Development and Public Policy,Fudan University。
文摘Population aging has become normal in Chinese society,but the existing governance models and institutional arrangements still lack a structured and systematic response and adaptation,and the corresponding governance research has also encountered difficulties.Policy choices for the governance of China’s aging society should be based on“Chinese characteristics,”which should be developed into“Chinese advantages”in order to achieve a transformation from fragmented management to holistic governance and from a focus on the elderly population to an emphasis on the entire life cycle of the whole population,as well as the policy adjustment logic of changing from“making population change adapt to institutions”to“making institutional change adapt to population.”The current strategy for an aging society and policy arrangements should conduct strategic allocation from the standpoint of China’s demographic situation and the laws governing the development of aging.We need to recharge our ideas and innovate our systems on the basis of our cultural and institutional heritage and should set up a comprehensive and dynamic socioeconomic support system based on pluralistic co-governance and sustainable development.We should also strengthen research on the evolution of the elderly population and the development of the aging society of the future,and on this basis select an entry point for policy readjustment and even reconstruction.
基金Supported by the National Science Fund for Distinguished Young Scholars (No. 40825003)the Major Directivity Projects of Chinese Academy of Science (No. kzcx2-yw-429)the National High-tech R&D Program of China (No. 2006AA12Z219)
文摘The HASM(high accuracy surface modeling) technique is based on the fundamental theory of surfaces,which has been proved to improve the interpolation accuracy in surface fitting.However,the integral iterative solution in previous studies resulted in high temporal complexity in computation and huge memory usage so that it became difficult to put the technique into application,especially for large-scale datasets.In the study,an innovative model(HASM-AD) is developed according to the sequential least squares on the basis of data adjustment theory.Sequential division is adopted in the technique,so that linear equations can be divided into groups to be processed in sequence with the temporal complexity reduced greatly in computation.The experiment indicates that the HASM-AD technique surpasses the traditional spatial interpolation methods in accuracy.Also,the cross-validation result proves the same conclusion for the spatial interpolation of soil PH property with the data sampled in Jiangxi province.Moreover,it is demonstrated in the study that the HASM-AD technique significantly reduces the computational complexity and lessens memory usage in computation.
