电力抢修备品备件供应商选择的不确定数据top-k查询  

Uncertain Data Top-k Query for Power Repair Spare Parts Supplier Selection

作　　者：袁仲雄[1] 徐久荣[2] 

机构地区：[1]上海电力学院,上海200090 [2]上海市电力公司电力科学研究院,上海200437

出　　处：《华东电力》2013年第6期1259-1263,共5页East China Electric Power

摘　　要：电力备品备件虚拟库存需要在电力抢修时确定备品备件的供应商。选择备品备件供应商时主要考虑配送时间和准时率,这是一个不确定性数据的top-k查询问题。针对供应商的配送属性建立了供应商选择不确定性数据模型、可能世界模型,然后在可能世界模型上进行top-k查询,返回配送时间最短、准时率最高的供应商队列。The spare parts suppliers are to be selected for the virtual inventory fo power repair. As a uncertain data Top-k query problem, the delivery time and punctuality are major accountable factors in the selection. Uncertainty data model and possible world model are established for the supplier selection based on their distribution property. Then the top-k query is processed on the possible world model, whereby the supplier queue is derived according to the shortest delivery time and the highest punctuality.

关 键 词：不确定top-k查询 电力抢修 供应商 不确定性数据管理 可能世界模型 

分 类 号：TM73[电气工程—电力系统及自动化]