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一种基于访问约束的数据同步技术 被引量:2

A Data Synchronization Technology Based Data Access Constraint
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摘要 针对现实的数据采集环境,提出了数据访问约束的概念。给出了数据源更新的非齐次泊松模型,并在此基础上提出了一种有效的基于访问约束的数据同步方法。通过实验表明,该方法可以在不增加系统探测次数的前提下有效减小数据采集系统数据更新不及时给用户带来的损失。 This paper present a concept of data access constraint for real data collection environm - ent. We give a nonhomogeneous poisson model to estimate the updates of data sources. Further, a effective data synchronization method under the data access constrain is presented. The experiments show this method can reduce the loss of user's due to the data outmoded without increasing the system probe times.
作者 王恒 刘振宇
出处 《微计算机应用》 2007年第12期1321-1324,共4页 Microcomputer Applications
关键词 数据获取 同步技术 非齐次泊松模型 Data Access, Synchronization Technology, Nonhomogeneous Poisson Model
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