New concept of'edge entrance'is put forward anda new analyzing framework of'edge entrance pattern'is established from the perspective of economicsthrough studying the technologic nature of Internetsyst...New concept of'edge entrance'is put forward anda new analyzing framework of'edge entrance pattern'is established from the perspective of economicsthrough studying the technologic nature of Internetsystem.Based on this framework and under differentmarket structures,sequential game models are builtand Internet services are taken as the typical objectsto analyze the phenomenon of edge entrance.Theinfluences of edge entrance of Internet services aresummarized finally and the conclusions show thatInternet services can integrate from edge intomainstream,apart from the driving forces from technologyand market demands,'edge'attribute is alsoone of the main reasons.展开更多
Metadata mechanism, especially metadata management pattern, is a hotspot in the field of internet information sharing. This paper analyzes the characters and deficiency of current metadata management patterns. Subsequ...Metadata mechanism, especially metadata management pattern, is a hotspot in the field of internet information sharing. This paper analyzes the characters and deficiency of current metadata management patterns. Subsequently, a new metadata management pattern is put forward combined with its application in geograpic information sharing. Aiming at the demands of future Internet information sharing, this pattern is a networkoriented, open and extensible metadata management system. Meanwhile, this management pattern is also a management model of trinity of data users, metadata and datasets. Finally, this paper analyzes the architecture and function flow of this network-oriented integrated metadata management pattern.展开更多
The phenomenon of data explosion represents a severe challenge for the upcoming big data era.However,the current Internet architecture is insufficient for dealing with a huge amount of traffic owing to an increase in ...The phenomenon of data explosion represents a severe challenge for the upcoming big data era.However,the current Internet architecture is insufficient for dealing with a huge amount of traffic owing to an increase in redundant content transmission and the end-point-based communication model.Information-centric networking(ICN)is a paradigm for the future Internet that can be utilized to resolve the data explosion problem.In this paper,we focus on content-centric networking(CCN),one of the key candidate ICN architectures.CCN has been studied in various network environments with the aim of relieving network and server burden,especially in name-based forwarding and in-network caching functionalities.This paper studies the effect of several caching strategies in the CCN domain from the perspective of network and server overhead.Thus,we comprehensively analyze the in-network caching performance of CCN under several popular cache replication methods(i.e.,cache placement).We evaluate the performance with respect to wellknown Internet traffic patterns that follow certain probabilistic distributions,such as the Zipf/Mandelbrot–Zipf distributions,and flashcrowds.For the experiments,we developed an OPNET-based CCN simulator with a realistic Internet-like topology.展开更多
慢性病严重威胁我国居民健康,有效的慢性病管理可以很大程度上减少疾病的危害,互联网医疗的发展为慢性病管理提供了良好契机。通过文献研究,本文回顾了国内外互联网慢性病管理的经验和模式,基于世界卫生组织(World Health Organization,...慢性病严重威胁我国居民健康,有效的慢性病管理可以很大程度上减少疾病的危害,互联网医疗的发展为慢性病管理提供了良好契机。通过文献研究,本文回顾了国内外互联网慢性病管理的经验和模式,基于世界卫生组织(World Health Organization,WHO)提出的创新型慢性病照护框架(innovative care for chronic conditions framework,ICCC),从宏观、中观、微观3个层面上分析了互联网慢性病管理的问题,并立足于我国互联网慢性病管理的实际,提出互联网慢性病管理的对策建议。宏观层面上政府应结合互联网慢病管理的试点经验,完善国家配套政策制度;中观层面上社区卫生机构应增加社区资源投入,强化社区机构在互联网慢性病管理的能力;微观层面上需提高患者(及家庭)的慢性病自我管理能力,调动自身参与性和主动性,促进患者自我管理。展开更多
文摘New concept of'edge entrance'is put forward anda new analyzing framework of'edge entrance pattern'is established from the perspective of economicsthrough studying the technologic nature of Internetsystem.Based on this framework and under differentmarket structures,sequential game models are builtand Internet services are taken as the typical objectsto analyze the phenomenon of edge entrance.Theinfluences of edge entrance of Internet services aresummarized finally and the conclusions show thatInternet services can integrate from edge intomainstream,apart from the driving forces from technologyand market demands,'edge'attribute is alsoone of the main reasons.
文摘Metadata mechanism, especially metadata management pattern, is a hotspot in the field of internet information sharing. This paper analyzes the characters and deficiency of current metadata management patterns. Subsequently, a new metadata management pattern is put forward combined with its application in geograpic information sharing. Aiming at the demands of future Internet information sharing, this pattern is a networkoriented, open and extensible metadata management system. Meanwhile, this management pattern is also a management model of trinity of data users, metadata and datasets. Finally, this paper analyzes the architecture and function flow of this network-oriented integrated metadata management pattern.
基金supported by Basic Science Research Program through the National Research Foundation of Korea(NRF)funded by the Ministry of Education(2014R1A1A2057796)and(2015R1D1A1A01059049)
文摘The phenomenon of data explosion represents a severe challenge for the upcoming big data era.However,the current Internet architecture is insufficient for dealing with a huge amount of traffic owing to an increase in redundant content transmission and the end-point-based communication model.Information-centric networking(ICN)is a paradigm for the future Internet that can be utilized to resolve the data explosion problem.In this paper,we focus on content-centric networking(CCN),one of the key candidate ICN architectures.CCN has been studied in various network environments with the aim of relieving network and server burden,especially in name-based forwarding and in-network caching functionalities.This paper studies the effect of several caching strategies in the CCN domain from the perspective of network and server overhead.Thus,we comprehensively analyze the in-network caching performance of CCN under several popular cache replication methods(i.e.,cache placement).We evaluate the performance with respect to wellknown Internet traffic patterns that follow certain probabilistic distributions,such as the Zipf/Mandelbrot–Zipf distributions,and flashcrowds.For the experiments,we developed an OPNET-based CCN simulator with a realistic Internet-like topology.
文摘慢性病严重威胁我国居民健康,有效的慢性病管理可以很大程度上减少疾病的危害,互联网医疗的发展为慢性病管理提供了良好契机。通过文献研究,本文回顾了国内外互联网慢性病管理的经验和模式,基于世界卫生组织(World Health Organization,WHO)提出的创新型慢性病照护框架(innovative care for chronic conditions framework,ICCC),从宏观、中观、微观3个层面上分析了互联网慢性病管理的问题,并立足于我国互联网慢性病管理的实际,提出互联网慢性病管理的对策建议。宏观层面上政府应结合互联网慢病管理的试点经验,完善国家配套政策制度;中观层面上社区卫生机构应增加社区资源投入,强化社区机构在互联网慢性病管理的能力;微观层面上需提高患者(及家庭)的慢性病自我管理能力,调动自身参与性和主动性,促进患者自我管理。
