The database of land use can provided more accurate and more scientific decisive information for the optimal management model of land resource if only spatial data origins are renovated periodically.
要使土地利用数据库的成果在土地资源管理的模式优化方面取得显著成就，必须定期革新数据源。
An optimal decision model of sensor management based on information efficacy function is proposed. The optimality of the allocation algorithm based on predicting covariance is analyzed.
提出了一种基于信息效能函数的传感器管理最优决策模型，分析了以预测误差协方差为分配效能的分配算法的最优性。
This paper deals with the optimal management of the pension fund with guarantee under CIR model.
讨论带有收益保障的养老金计划在随机利率模型下的优化管理问题。
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