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As the number of environmental sensors grows, it becomes increasingly difficult to manage, store and process all these sources of information. Several context representation schemes try to standardize this information, however none of them have been widely adopted. Instead of proposing yet another context representation scheme, we discuss efficient ways to deal with this diversity of representation...
Mobile users have the capability of accessing information anywhere at anytime with the introduction of mobile web search. However, they still need to devote time and effort in order to retrieve relevant information in mobile devices. Conversely, context is proposed to reduce users time and effort. The recognition of context is supported by the availability of embedded sensors in mobile devices. In...
This paper contains a method to construct context data which can help an application grasp user intention in pervasive computing environment (PCE). There are various devices in which a user is interested for the user intention (intended behavior such as entering, reading and sleeping). And the core of PCE is to provide appropriate services adapted for grasped user intention through processing context...
Capturing the gestures of music performers is a common task in interactive electroacoustic music. The captured gestures can be mapped to sounds, synthesis algorithms, visuals, etc., or used for music transcription. Two of the most common approaches for acquiring musical gestures are: 1) “hyper-instruments” which are “traditional” musical instruments enhanced with sensors for directly detecting the...
This paper briefly presents our Information Retrieval and Indexing System (IRIS), and how it adapts to support game engine components. We describe a conceptual game, Chasers of the Lost Data, to demonstrate how pervasive games elements interact with content and user context detection, enabling a broad range of game applications. The presented game combines physical, sensorial and contextual information...
We have investigated a wearable video system to capture our experiences by a wearable camera, microphone and some sensors including GPS receiver, etc. GPS receiver was used to record the user's tracks and identify the location of user's experiences by latitude and longitude coordinates. GPS receiver can also extract time, speed and direction that are benefit contexts for wearable video navigation...
In this paper we introduce a new framework for the development of context-aware knowledge by integrating the user's digital and physical environment. The developed knowledge can contribute to solve problems and challenges of wireless sensor networks within a context that is described by additional cyber-content. Sensor networks are exposed, intentionally or not, to dynamically changing network structures...
The typical scenario of a user seeking information on the Web requires significant effort to get the desired information. In a world where information is essential, it can be crucial for users to get the desired information quickly even when they are away from their desktop computers. The Context-Aware Browser for mobile devices senses the surrounding environment, infers the user's current context,...
Every modern portal ships with some form of internal document library portlet tools that can be used to enable groups to share files. Unfortunately, certain limitations - that the portlet can only view data managed directly by the portal and that document and data files are the only resource that can be browsed - make these tools less valuable in many real-world collaborations. This paper describes...
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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