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一种跨域数据计算共享系统设计方法
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作者 田承东 姜巍 《软件》 2023年第9期8-13,共6页
针对数字化应用实践中需要在不同的物理域和信息域中进行数据的访问交换以及共享计算等需求,本文分析了在数据平台、数据集成系统以及信息交换系统中存在的问题。在基于联邦学习的基础上,提出一种跨域数据计算共享系统,能够同时共享数... 针对数字化应用实践中需要在不同的物理域和信息域中进行数据的访问交换以及共享计算等需求,本文分析了在数据平台、数据集成系统以及信息交换系统中存在的问题。在基于联邦学习的基础上,提出一种跨域数据计算共享系统,能够同时共享数据和计算资源,并支持在线计算。在架构设计上设计了基础资源层、共享资源层及应用层,突出共享资源层中针对共享数据资源及共享计算资源的设计逻辑。模块设计中重点解决跨域数据集搜索问题以及算力共享激励问题,首先通过容器虚拟化屏蔽计算资源的异构性,设置下载控制量实现一定程度的隐私保护;然后使用基于数据连接的跨域数据集搜索,使得搜索能够从数据集简介层面上深入到数据集表,提升跨域数据集搜索的准确度,为了扩充和平稳系统算力,分别设置了用户奖励与惩罚策略,通过资源异构性屏蔽、搜索策略改进以及激励策略的综合使用,提升了跨域数据计算共享系统的易用性、稳定性;最后通过本文方法与两种数据共享系统的方法进行了验证对比,证明本方法对跨域数据计算共享效率的提升。 展开更多
关键词 联邦学习 计算资源共享 跨域数据共享 共享架构设计 激励机制
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The Research and Practice of Professional Knowledge Sharing and Service: A Case Study of the Geography, Resources, and Ecology Knowledge Service System 被引量:1
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作者 CHEN Zugang SUN Jiulin YANG Yaping 《Journal of Resources and Ecology》 CSCD 2018年第2期218-226,共9页
Knowledge Sharing and Service is one effective way to eliminate knowledge poverty and promote social development.Existing knowledge sharing and service is mainly provided in some organizations or specific social group... Knowledge Sharing and Service is one effective way to eliminate knowledge poverty and promote social development.Existing knowledge sharing and service is mainly provided in some organizations or specific social groups.Besides,a knowledge sharing and service system about geography,natural resources and ecology has not been reported.We proposed a public welfare professional knowledge-sharing and service platform for all members of society in geography,natural resources and ecology.The construction of a knowledge-sharing and service platform is based on five aspects of work:analysis of user requirements,setting standards and drafting policies,aggregating knowledge resources,the technical realization and the maintenance of service.Knowledge resources can be aggregated by using a"two-step"strategy.A knowledge-sharing and service system can be implemented by using"four-tier"structures that are comprised of resources,resource access,application and service,based on the Hadoop-distributed cluster architecture.It has been proven that adhering to the idea of co-building and co-sharing,and using the mechanism of"payment is equal to benefit"can effectively promote the gathering of knowledge resources,and arouse the enthusiasm of all members of society to participate in knowledge sharing and service,to achieve the objective of narrowing the knowledge gap between social groups. 展开更多
关键词 knowledge sharing knowledge service resource aggregation architecture design geography resources and ecology
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Design and Implementation of Service-Oriented Spatial Information Sharing Framework in Digital City 被引量:6
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作者 邵振峰 李德仁 《Geo-Spatial Information Science》 2009年第2期104-109,共6页
This paper proposes a theoretical framework of spatial information sharing in a digital city, and analyzes its technical characteristics. According to the service-oriented architecture (SOA) framework, a geospatial in... This paper proposes a theoretical framework of spatial information sharing in a digital city, and analyzes its technical characteristics. According to the service-oriented architecture (SOA) framework, a geospatial information sharing platform is put forward. The spatial information sharing model based on SOA is designed. A prototype platform realizing multiple-source spatial information sharing based on ArcGIS Server is developed. 展开更多
关键词 digital city Web services service-oriented architecture (SOA) spatial information sharing
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