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Detecting and resolving context inconsistency is critical to pervasive computing applications and infrastructures. Context inconsistency occurs when an application perceives contexts that breach predefined consistency constraints. This can drive an application to behave abnormally or even cause failure. Existing work commonly assumes the presence of a single application suffering from context inconsistency,...
The CUBIQ (Cross UBIQuitous platform) project is a national R&D project in Japan for establishing a multi-domain context-aware service platform from 2008 to 2010. It involves setting up a common service platform environment on which many sensors, devices, mobile phones and actuators can be universally handled and connected to ubiquitous networks even in the autonomous distributed environment....
Context-aware applications automatically adapt their behavior according to environmental conditions, also known as contexts. However, in practice contexts are often inaccurate, noisy or even inconsistent (e.g., two RFID readers may report different numbers for the same set of goods processed). These kinds of problematic contexts may cause context-aware applications to behave abnormally or even fail...
In fast growing world we are in need of information for place we are in right now. For these types of services the Pervasive Computing is used. In Olden days, if we need some information means, we have to go to our computer and had the necessary information. Nowadays we have our laptop Computer with us and have the information where ever we are now. The sub domain of Pervasive Computing is Context...
User interactions and related input devices and techniques can be customized to improve user experience and task performances. We consider context and context awareness to help modify applications interface and interactions in order to match the tasks users are currently performing. We explore how to adapt to the context by selecting input device and interaction technique. Finally, we present the...
This paper presents a novel approach to assist a group of users to access and control personalized context based services by means of natural interactions. The group creation and the service activation are both based on the use of RFID tags. Each user can join a group by placing her personal tag on an RFID reader. Once the group has been created each available service, e.g. pictures slideshow, media...
Wireless mesh networks are an appropriate solution for broadband home networks in order to establish a ubiquitous environment. One of the main challenges in ubiquitous networks is context-awareness and personalized service discovery. Many service discovery protocols have been proposed in the literature. The most significant is the Universal Plug and Play (UPnP) technology, based on the Simple Service...
In recent years there has been a growing interest toward the development of pervasive and context-aware services, and RFID technology played a relevant role in the context sensing task. We propose the use of RFID technology together with a conversational agent in order to implement a multimodal information retrieval service we call sensor mesh. The information acquired from RFID tags about the nearest...
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