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Mobile context-aware computing is an essential component of the smart cities infrastructure. Attempts were made to develop a model that can effectively represent a system in device to support context-aware behavior. The purpose of this paper is to identify deficiencies of the previously developed model and propose solutions to improve it.
Since its inception, Service Orientation allowed for distributed clients to invoke remote operations utilizing standardized protocols, programming paradigms and architectures. Furthermore, the problem of compiling complex service compositions, based on contextual information and user preferences, has been also extensively investigated by the research community. However, these techniques are mostly...
Large-scale context-aware pervasive environments are dealing with context information of every user for every domain supported. They have to represent every user's personal situation that typically consists of overlapping contexts while caring for the privacy of their users. The contexts are not necessarily all the same for different users that are part of a specific situation. Furthermore, they are...
Today, context-aware systems are discussed as one of the key subjects in ubiquitous computing systems. In this area, researchers have been trying to find some techniques for context information modeling. So that attaining general and efficient model for managing, storing and retrieving data and contextual information is a necessary aspect. In this regard and in order to achieving this goal, several...
Effective manipulation of context is very important in the research of context-awareness. In recent years, thus, a variety of context models have been proposed to properly handle the key aspects of the context, while focusing on scenario-based acquisition, management, and representation of context. However, they are difficult to be employed for agent system requiring distributed reasoning. In this...
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...
Wireless sensor networks offer significant improvement over traditional sensor networks. Wireless sensor network (WSNs) consists of small sensor nodes, which are capable of sensing, processing and wireless communication capabilities. Recently Context-aware computing is an area of interest in WSN's. Context aware computing (CAC) is a paradigm in which applications make use of contextual information...
Context-aware computing is an important area of ubiquitous computing. To study context-aware computing, the first step is to define its main component: context. We survey the various context definitions and then adopt the definition of Deypsilas. We survey the context modeling techniques and point out the deficiencies of each technique. The purpose of this paper is to propose a formal context model...
As the most important component of pervasive computing in mobile business, context-aware system gets more and more attention from the researchers. One of the basic technologies used to implement the contexts' description and reasoning in context-aware systems is ontology which has the big advantage at knowledge presenting and sharing. However, the shortage of the existing methods with ontology is...
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