An improved social force model based on exit selection is proposed to simulate pedestrians' microscopic behaviors in subway station. The modification lies in considering three factors of spatial distance, occupant...An improved social force model based on exit selection is proposed to simulate pedestrians' microscopic behaviors in subway station. The modification lies in considering three factors of spatial distance, occupant density and exit width. In addition, the problem of pedestrians selecting exit frequently is solved as follows: not changing to other exits in the affected area of one exit, using the probability of remaining preceding exit and invoking function of exit selection after several simulation steps. Pedestrians in subway station have some special characteristics, such as explicit destinations, different familiarities with subway station. Finally, Beijing Zoo Subway Station is taken as an example and the feasibility of the model results is verified through the comparison of the actual data and simulation data. The simulation results show that the improved model can depict the microscopic behaviors of pedestrians in subway station.展开更多
The rural micro-financial innovation is necessary because the traditional regular financial institutions can not satisfy peasant households' demand of small-sum(or petty)loan and the support of present small-sum l...The rural micro-financial innovation is necessary because the traditional regular financial institutions can not satisfy peasant households' demand of small-sum(or petty)loan and the support of present small-sum loan companies is limited for rural financial development.Taking Fuping Petty Loan Company as an example,we analyzed characteristics,reasonableness and continuity of social enterprise type peasant household petty loan mode.It is believed that this mode has enormous vitality in rural areas and has great promotion value.Petty loan companies have both internal and external shortages in their current development.We put forward countermeasures and suggestions for rural micro-financial innovation from legal status confirmation,fund supply and loan product innovation.展开更多
The advent of the time of big data along with social networks makes the visualization and analysis of networks information become increasingly important in many fields. Based on the information from social networks, t...The advent of the time of big data along with social networks makes the visualization and analysis of networks information become increasingly important in many fields. Based on the information from social networks, the idea of information visualization and development of tools are presented. Popular social network micro-blog （＇Weibo＇） is chosen to realize the process of users＇ interest and communications data analysis. User interest visualization methods are discussed and chosen and programs are developed to collect users＇ interest and describe it by graph. The visualization results may be used to provide the commercial recommendation or social investigation application for decision makers.展开更多
基金Project(T14JB00200)supported by the Fundamental Research Funds for the Central UniversitiesChina+2 种基金Projects(RCS2012ZZ002RCS2012ZT003)supported by the State Key Laboratory of Rail Traffic Control and SafetyChina
文摘An improved social force model based on exit selection is proposed to simulate pedestrians' microscopic behaviors in subway station. The modification lies in considering three factors of spatial distance, occupant density and exit width. In addition, the problem of pedestrians selecting exit frequently is solved as follows: not changing to other exits in the affected area of one exit, using the probability of remaining preceding exit and invoking function of exit selection after several simulation steps. Pedestrians in subway station have some special characteristics, such as explicit destinations, different familiarities with subway station. Finally, Beijing Zoo Subway Station is taken as an example and the feasibility of the model results is verified through the comparison of the actual data and simulation data. The simulation results show that the improved model can depict the microscopic behaviors of pedestrians in subway station.
基金Supported by Double Support Plan Project of Sichuan Agricultural University
文摘The rural micro-financial innovation is necessary because the traditional regular financial institutions can not satisfy peasant households' demand of small-sum(or petty)loan and the support of present small-sum loan companies is limited for rural financial development.Taking Fuping Petty Loan Company as an example,we analyzed characteristics,reasonableness and continuity of social enterprise type peasant household petty loan mode.It is believed that this mode has enormous vitality in rural areas and has great promotion value.Petty loan companies have both internal and external shortages in their current development.We put forward countermeasures and suggestions for rural micro-financial innovation from legal status confirmation,fund supply and loan product innovation.
文摘The advent of the time of big data along with social networks makes the visualization and analysis of networks information become increasingly important in many fields. Based on the information from social networks, the idea of information visualization and development of tools are presented. Popular social network micro-blog （＇Weibo＇） is chosen to realize the process of users＇ interest and communications data analysis. User interest visualization methods are discussed and chosen and programs are developed to collect users＇ interest and describe it by graph. The visualization results may be used to provide the commercial recommendation or social investigation application for decision makers.
