通过可视化软件Citespace的词频统计和聚类功能,对Web of Science(WoS)数据库1992-2018年收录的200篇SSCI期刊文献进行分析表明,"学生与影子教育""影子教育需求""社会不平等""影子教育政策"是...通过可视化软件Citespace的词频统计和聚类功能,对Web of Science(WoS)数据库1992-2018年收录的200篇SSCI期刊文献进行分析表明,"学生与影子教育""影子教育需求""社会不平等""影子教育政策"是这一时期国际影子教育的四个研究热点主题。研究发现,该领域文献数量持续增加,研究视角由微观转向中观和宏观,研究内容由影子教育成因、对学生和家庭的影响转向对国家、社会的影响和治理研究。国际研究对我国影子教育研究的实践启示为:从多学科视角推动影子教育纵深发展;实证研究和理论研究相结合,提倡方法多元化;加强政策分析和评估研究,为制定影子教育政策提供参考。展开更多
A double-dimensional big data assessment method on the characteristics of on-line taxi traffic operation is proposed to provide a scientific basis for carrying out the taxi industry reform and standardizing the on-lin...A double-dimensional big data assessment method on the characteristics of on-line taxi traffic operation is proposed to provide a scientific basis for carrying out the taxi industry reform and standardizing the on-line taxi hailing management work. Taking Shenzhen as an example, multi- source data such as on-line taxi license plate data, plate identification data and taxi （including on-line taxis） operation data are combined with the results of the stated preference （SP） survey on taxi operating characteristics to assess the overall operation characteristics of on-line taxis. The results show that the current on-line taxis in Shenzhen can be divided into three categories, that is, full-time on-line taxis, non- active on-line taxis and part-time on-line taxis, accounting for 4%, 55%, and 41%, respectively, of the total quantity. In terms of the characteristics of space-time operations, full-time on-line taxis have similar operating characteristics as those of traditional taxis; the operation of non-active on-line taxis and part-time on-line taxis coincides with commuting requirements during morning and evening peak hours. However, part-time on-line taxis operate for a much longer time period at night. Due to the convenient hailing and favorable price, on-line taxis have a significant impact on trip modes of citizens; and the substitution eflbct of on-line taxis on traditional buses and cruising taxis is obvious. It is beneficial for helping the government departments to objectively understand the development law of the on-line taxi industry and providing decision reference for the formulation of relevant management policies during the critical development stage of on-line taxi industry.展开更多
文摘通过可视化软件Citespace的词频统计和聚类功能,对Web of Science(WoS)数据库1992-2018年收录的200篇SSCI期刊文献进行分析表明,"学生与影子教育""影子教育需求""社会不平等""影子教育政策"是这一时期国际影子教育的四个研究热点主题。研究发现,该领域文献数量持续增加,研究视角由微观转向中观和宏观,研究内容由影子教育成因、对学生和家庭的影响转向对国家、社会的影响和治理研究。国际研究对我国影子教育研究的实践启示为:从多学科视角推动影子教育纵深发展;实证研究和理论研究相结合,提倡方法多元化;加强政策分析和评估研究,为制定影子教育政策提供参考。
基金The National Natural Science Foundation of China(No.71641005)
文摘A double-dimensional big data assessment method on the characteristics of on-line taxi traffic operation is proposed to provide a scientific basis for carrying out the taxi industry reform and standardizing the on-line taxi hailing management work. Taking Shenzhen as an example, multi- source data such as on-line taxi license plate data, plate identification data and taxi （including on-line taxis） operation data are combined with the results of the stated preference （SP） survey on taxi operating characteristics to assess the overall operation characteristics of on-line taxis. The results show that the current on-line taxis in Shenzhen can be divided into three categories, that is, full-time on-line taxis, non- active on-line taxis and part-time on-line taxis, accounting for 4%, 55%, and 41%, respectively, of the total quantity. In terms of the characteristics of space-time operations, full-time on-line taxis have similar operating characteristics as those of traditional taxis; the operation of non-active on-line taxis and part-time on-line taxis coincides with commuting requirements during morning and evening peak hours. However, part-time on-line taxis operate for a much longer time period at night. Due to the convenient hailing and favorable price, on-line taxis have a significant impact on trip modes of citizens; and the substitution eflbct of on-line taxis on traditional buses and cruising taxis is obvious. It is beneficial for helping the government departments to objectively understand the development law of the on-line taxi industry and providing decision reference for the formulation of relevant management policies during the critical development stage of on-line taxi industry.
