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Context aware services provide functionalities which are personalized for their users' current situations. A main concern of context-aware services is a substantial consumption of resources while preserving a minimal level of accuracy. There is a tradeoff between efficiency and accuracy on context acquisition. Hence, we propose a cloud-based Context Acquisition Platform to provide a high-level of...
Context-aware service apps provide a functionality which is personalized for a user's current situation. A main concern of context-aware mobile apps is a substantial consumption of resources. The excessive drain of resources for context acquisition results in slowing down the execution of other apps and shortening the battery life. Hence, we propose Context Acquisition Platform (CAP) to remedy these...
A number of different IoT devices are already available and newer types would appear on the market. A technical difficulty in IoT computing is to manage the heterogeneity of IoT devices in terms of their network protocol supported, interface language, data exchange scheme, and type of mobility provided. Business Process Execution Language (BPEL) has been effectively utilized to collaborate multiple...
Cyber-Physical Systems (CPS) are integrations of computation and physical processes. The powerful processors and variety of sensors equipped in mobile Internet devices can be leveraged to build cyber-physical applications that collect sensor data from the real world and communicate it back to services for processing and aggregation. In this paper, we present a design of a framework which can provide...
Mobile devices are widely accepted as a convergence machine which provides both cell phone capability and a lightweight computing capability. However, mobile devices have a major drawback of limited computing power and resources such as main memory and battery life. Service-based mobile applications are emerged as an efficient solution to overcome this limitation of mobile devices. On the other hand,...
In service-oriented computing, service consumers subscribe published services, and service providers deploy and manage services. Due to the heterogeneity of services, and high evolvability of services, services can suffer from reliability. This paper presents a scalability-based approach to providing reliable services. We first define the architecture of the proposed framework, and provide a process...
In service-oriented computing, service consumers invoke services deployed by service providers, and service providers are liable to manage the quality of their services including scalability, availability and performance. Especially, scalability is hard to achieve, mainly due to the unknown nature of service consumers and unpredictable volumes of service invocations. Services with poor scalability...
Cloud computing is a style of computing in which dynamically scalable and often virtualized resources are provided as a service over the Internet. One type of cloud service, SaaS is commonly utilized and it provides several benefits to service consumers. To realize these benefits, it is essential to evaluate the quality of SaaS and manage relatively higher level of its quality based on the evaluation...
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