Context awareness is increasingly gaining applicability in interactive ubiquitous mobile computing systems. Each context-aware application has its own set of behaviors to react to context modifications. Hence, every s...Context awareness is increasingly gaining applicability in interactive ubiquitous mobile computing systems. Each context-aware application has its own set of behaviors to react to context modifications. Hence, every software engineer needs to clearly understand the goal of the development and to categorize the context in the application. We incorporate context-based modifications into the appearance or the behavior of the interface, either at the design time or at the run time. In this paper, we present application behavior adaption to the context modification via a context-based user interface in a mobile application. We are interested in a context-based user interface in a mobile device that is automatically adapted based on the context information. We use the adaption tree, named in our methodology, to represent the adaption of mobile device user interface to various context information. The context includes the user’s domain information and dynamic environment changes. Each path in the adaption tree, from the root to the leaf, presents an adaption rule. An e-commerce application is chosen to illustrate our approach. This mobile application was developed based on the adaption tree in the Android platform. The automatic adaption to the context information has enhanced human-computer interactions.展开更多
提出一种多目标的数据预取方法(multiple goals oriented data prefetching,简称MGODP)来满足不同用户的数据预取需求.MGODP不仅从用户偏好出发为其预取合适量的数据,而且从服务器角度出发,对于Client/Server模式下的数据访问提出全局...提出一种多目标的数据预取方法(multiple goals oriented data prefetching,简称MGODP)来满足不同用户的数据预取需求.MGODP不仅从用户偏好出发为其预取合适量的数据,而且从服务器角度出发,对于Client/Server模式下的数据访问提出全局合作的方法,以大幅度提高服务质量.另外,MGODP提供了移动客户端和服务器之间平衡工作负载的合作机制,合理分配系统资源,保障系统性能.通过一系列实验可以看出,MGODP方法能够很好地满足不同用户的需求,并通过全局合作和负载均衡机制在保证用户性能需求的前提下,尽可能地减小对电池电量和网络带宽的消耗.展开更多
文摘Context awareness is increasingly gaining applicability in interactive ubiquitous mobile computing systems. Each context-aware application has its own set of behaviors to react to context modifications. Hence, every software engineer needs to clearly understand the goal of the development and to categorize the context in the application. We incorporate context-based modifications into the appearance or the behavior of the interface, either at the design time or at the run time. In this paper, we present application behavior adaption to the context modification via a context-based user interface in a mobile application. We are interested in a context-based user interface in a mobile device that is automatically adapted based on the context information. We use the adaption tree, named in our methodology, to represent the adaption of mobile device user interface to various context information. The context includes the user’s domain information and dynamic environment changes. Each path in the adaption tree, from the root to the leaf, presents an adaption rule. An e-commerce application is chosen to illustrate our approach. This mobile application was developed based on the adaption tree in the Android platform. The automatic adaption to the context information has enhanced human-computer interactions.
基金SuppoSed by the National Natural Science Foundation of China under Grant Nos.6067319560703078(国家自然科学基金)+2 种基金the National High-Tech Research and Development Plan of China under Grant No.2007AA04Z113(国家高技术研究发展计划(863))the National Basic Research Program of China under Grant No.2006CB303105(国家重点基础研究发展规划(973))the National Key Technology R&D Program of China under Grant No.2006BAF01A17(国家科技支撑计划)
文摘提出一种多目标的数据预取方法(multiple goals oriented data prefetching,简称MGODP)来满足不同用户的数据预取需求.MGODP不仅从用户偏好出发为其预取合适量的数据,而且从服务器角度出发,对于Client/Server模式下的数据访问提出全局合作的方法,以大幅度提高服务质量.另外,MGODP提供了移动客户端和服务器之间平衡工作负载的合作机制,合理分配系统资源,保障系统性能.通过一系列实验可以看出,MGODP方法能够很好地满足不同用户的需求,并通过全局合作和负载均衡机制在保证用户性能需求的前提下,尽可能地减小对电池电量和网络带宽的消耗.
