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稀疏机会网络中基于固定中继节点与消息相关性的缓存管理策略 被引量:1
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作者 马学彬 李爱丽 +2 位作者 张晓娟 贾磊磊 肖静 《计算机科学》 CSCD 北大核心 2016年第S2期296-300,共5页
针对稀疏机会网络中固定中继节点和移动节点间的相遇频率以及缓存资源的差异性问题,在多副本路由协议中,提出一种结合固定中继节点重要性和消息相关性的缓存管理策略。该策略通过交互固定节点和移动节点的接触信息和消息队列信息,减少... 针对稀疏机会网络中固定中继节点和移动节点间的相遇频率以及缓存资源的差异性问题,在多副本路由协议中,提出一种结合固定中继节点重要性和消息相关性的缓存管理策略。该策略通过交互固定节点和移动节点的接触信息和消息队列信息,减少固定中继节点缓存中冗余消息的数量,从而合理地利用固定中继节点的缓存资源。仿真结果表明,所提的缓存管理策略能够在保证消息传输成功率的基础上提高固定中继节点缓存空间的利用率。 展开更多
关键词 机会网络 缓存管理 消息相关性 节点重要性
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BPEL中同步与异步机制
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作者 周开军 尹巧萍 《电脑知识与技术》 2006年第2期64-65,共2页
Web服务业务流程执行语言(BPEL)是一种Web服务组合语言。本文详细分析了BPEL中的并发和同步控制、同步与异步通讯机制,并举例说明。
关键词 WS BPEL同步 异步 消息相关性
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The Demise of Knowledge Management Executive Leadership: An Empirical Study of Leading Companies That Have Changed Their Knowledge Management Strategies?
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作者 Harold Dennis Harlow 《Management Studies》 2016年第5期227-236,共10页
Knowledge management is increasingly under attack to show returns on investments and profitable business outcomes. While many companies retain their executive leadership as chief knowledge officers (CKOs) and vice p... Knowledge management is increasingly under attack to show returns on investments and profitable business outcomes. While many companies retain their executive leadership as chief knowledge officers (CKOs) and vice presidents of knowledge management, the trend toward appointing CKOs that developed in the late 1990's has been reversed at many companies and a new trend is to assign the strategic functions of knowledge management to the chief information officer (CIO). This new strategic approach has many ramifications that determine if the firm will be able to meet not only short-term objectives but firm mission strategic outcomes as well. This paper researches over 100 knowledge management executives respondents in a broad cross-section of medium and large US industries and organizations to question why the shift is occurring and what the strategic basis is for this shift? The results of this study clearly show that there are pros and cons to make this strategic shift and that many firms are doing so with little actual factual knowledge of the strategic effects on performance or intellectual capital formation. This paper and empirical ftrm performance and patent research is designed to give that top manager (CEO) the appropriate information to make rational decisions based on facts when considering eliminating or consolidation of CKO into the CIO function. Decisions on CLO and CKO positions should be based on the fu'm related performance in both measurable intellectual property and financial results. The results are presented and summarized and the statistical methodology of regression and correlation are used in this paper. 展开更多
关键词 knowledge management strategy executive knowledge leadership
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