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One of the personalized service in the ubiquitous For establishing real u-health environments, it is necessary to receive the context information obtained from various platforms at proper time in portable devices, which are operated in both wire and wireless communication. And, a knowledge model that reflects the information and characteristics for such services while it is appropriate for medical...
Empowered smart objects have become a part of people everyday activities due to the evolution of pervasive computing technologies. In such scenario context awareness plays a fundamental role in enabling adaptation and contextual services. Up to now a lot of efforts have been done in representing context information such as location, time and users identity. At the same time not much attention has...
Context-aware applications do not always adapt their behaviours in ways that users expect due to a variety of reasons. Applications that lack intelligibility are often incapable of offering explanations to users as to why they decided to adapt their behaviours in certain ways, and providing feedback mechanisms for users to take control of any unwanted adaptation. This can lead to loss of user trust,...
Context-aware (CA) systems have demonstrated the provision of a robust solution for personalized information delivery in the current content-rich and dynamic information age we live in. They allow software agents to autonomously interact with users by modeling the user's environment (e.g. profile, location, relevant public information etc.) as dynamically-evolving and interoperable contexts. There...
Context-aware applications are becoming commonplace in everyday life thanks to recent advances in mobile devices, sensor capabilities and wireless communication networks. However, making the manipulation of context information efficient is still an important issue. Taking into account the quality of context data becomes a corner stone of an efficient context management. In this paper, we argue for...
One of the most important points in context-aware computing is to build a reasonable context model. Currently, many models were not built in a common structure. It is hard to build other models depending on the existing ones. In this paper, we build a common ontology-based context model with Web Ontology Language (OWL), which provides an efficient and convenient way of ontology-building by adding...
This paper introduces context-aware adaptation as an important part of power distribution architectures. In our view context-awareness is a necessary part of administering the business policies concerning power distribution and is orthogonal to the core engineering aspects of power distribution. By decoupling the engineering logic from the business aspects we can plug in different adaptation strategies...
Context information is characterized by several qualities that make pervasive services challenging compared to conventional Web services. The additional complexities associated with pervasive services require solid software engineering practices. This paper presents a novel approach based on model-driven development for representing complex crosscutting context-dependent functionality in service interfaces...
Software services, in the near future, will be deployed on mobile, resource-limited devices that communicate through heterogeneous B3G (Beyond 3rd Generation) networks. They shall adapt themselves according to context and requirement changes without degrading software-related QoS. Supporting the development and maintenance of such services involves languages, methods and tools: this is the main target...
Software development that meets the demand of Ubiquitous Computing, in which access to applications occurs anywhere, anytime and from different devices, has raised new challenges for Software Engineering. Among these challenges it stands out the development of context-sensitive ubiquitous applications. Much of the effort required for building such applications can be reduced through the reuse of the...
This paper presents a semi-automatic approach to Web applications design evolution which leverages the Ubiquitous Web Applications (UWA) design framework, a methodology and a set of models and tools for the user-centered design of multi-channels and context-aware Web applications. The approach is based on a two-step redesign process: first a semi-automatic reverse modeling phase analyzes the html...
In order to provide the services for the users efficiently and select suitable SP and the service automatically according to the user's preference and habits when using the service, the paper apples the context-aware technology to the Service Selection Platform and picks out the Context-aware Service Selection Platform is proposed. The method is using the exiting Context-aware architecture to obtain...
Context-awareness and adaptability are important and desirable properties of service-based processes designed to provide personalized services. Most of the existing approaches focus on the adaptation at the process instance level which involves extending the standard Business Process Execution Language (BPEL) and its engine or creating their own process languages (e.g. However, the approach proposed...
To provide the user with most benefits and personalized services using the available computing resources in ad-hoc networks, context-aware applications need to assimilate both the accessed and derived context information in the network. Derived context is inherently dependent upon sensed data or/and other context information. Context dependency may get introduced in a system due to various reasons,...
Ubiquitous software applications can become more responsive if they can adapt to their surrounding situation without relying on users' continuous commitment. In dynamic environments such as public transit settings, where information is rapidly changing and passengers' demography are not uniform, an adaptive mobile application to navigate passengers based on their profile and context may be a good...
This paper presents a survey and different modelling approaches employed in context aware computing. A review of existing ontology based context models is also presented in this paper. Using evaluation criteria among the existing ontology based context models Context Broker Agent Architecture satisfies all the ontology engineering principles. This paper envisages new scope for context aware computing...
Autonomic computing has emerged as a paradigm for distributed computing systems to stem the tide of rapidly increasing complexity and evolution problem. In this paper, a two-layer self-reflection model for Autonomic Computing systems (ACs) based on pi-calculus is proposed from a theoretical point of view, which integrates self-awareness and context-awareness into a single model and provides a formal,...
The indisputable dominance of mobile and pervasive computing devices and their typical characteristics require services offered to be rethought and sometimes redesigned in order to better assist users. Considering the importance of data mining services to provide intelligence locally on devices on these environments, we propose a data mining service that adapts the embedded data mining algorithm according...
Global Software Development introduced many competitive advantages, however, these advantages brought new challenges together, specially when we talk about communication issues and, consequently, collaborative work participants coordination and management. In this sense, awareness techniques and context management can be used to offer information to project participants, making them perceive the context...
Successful management of critical situations created by major natural and man-made activities requires monitoring, recognizing, and making sense of these activities in order to support decision makers in either preventing a crisis or acting effectively to mitigate its adverse impact. Context plays an important role in crisis management since it provides decision makers with important information about...
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