Mata—information generation in distributed information system |
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作者姓名: | 苏健 高济 |
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作者单位: | DepartmentofComputerScienceandEngineering,ZhejiangUniversity,Hangzhou310027,China |
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摘 要: | The authors discuss the concept of meta-information which is the desription of information system or its subsystems,and proposes algorithms for meta-information generation.Meta-information can be generated in parallel mode and network computation can be used to accelerate meta-information generation.Most existing rough set methods assume information system to be centralized and cannot be applied directly in distributed information system.Data integration ,which is costly,is necessary for such existing methods.However,meta-information integration will eliminate the need of data integration in many cases,since many rough set operations can be done straightforward based on meta-information,and many existing methods can be modified based on meta-information.
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关 键 词: | 粗糙集 智能数据分析 分布信息系统 |
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