A collaborative spatial data production model in grid environment is proposed, especially the quality controlling policies are analyzed, and all above is validated in the system prototype.
提出了网格环境下的空间数据协作生产模型，分析了其质量控制策略，通过系统原型对本文思想进行了验证。
Considering spatial spillover effects of outputs and inputs, a modified knowledge production spatial panel data model is established.
在综合考虑知识产出和投入空间溢出效应的基础上，构建了改进的知识生产空间面板数据模型。
Panel data model is a roper method for investigating the influencing factor and driving mechanism of spatial pattern change of grain production.
面板数据模型是探讨粮食生产空间格局变化的影响因素与驱动机制的适宜方法。
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