Topic
Context awareness
About: Context awareness is a research topic. Over the lifetime, 5790 publications have been published within this topic receiving 119944 citations.
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TL;DR: LifeMap, a smartphone-based context provider operating in real time, fuses accelerometer, digital compass, Wi-Fi, and GPS to track and automatically identify points of interest with room-level accuracy.
Abstract: LifeMap, a smartphone-based context provider operating in real time, fuses accelerometer, digital compass, Wi-Fi, and GPS to track and automatically identify points of interest with room-level accuracy.
279 citations
TL;DR: A greater understanding of which aspects of context are important in a health care setting is required; the inherent sociotechnical nature of context-aware applications in health care; and the need to draw on a number of disciplines to conduct this research are concluded.
275 citations
01 Jan 2005
TL;DR: An overview of existing location models allowing for position, range, and nearest neighbor queries is presented and the classification of location models with respect to application requirements can assist developers in their design decisions.
Abstract: Common queries regarding information processing in ubiquitous computing are based on the location of physical objects. No matter whether it is the next printer, next restaurant, or a friend is searched for, a notion of distances between objects is required. A search for all objects in a certain geographic area requires the possibility to define spatial ranges and spatial inclusion of locations. In this paper, we discuss general properties of symbolic and geometric coordinates. Based on that, we present an overview of existing location models allowing for position, range, and nearest neighbor queries. The location models are classified according to their suitability with respect to the query processing and the involved modeling effort along with other requirements. Besides an overview of existing location models and approaches, the classification of location models with respect to application requirements can assist developers in their design decisions.
270 citations
01 Aug 2000
TL;DR: This paper proposes new methods for analysing the data delivered by accelerometers which enable the wearable computer to determine the user's activity and tries to minimise the number of devices needed by using a single X-Y accelerometer device.
Abstract: In this paper we describe continuing work being carried out as part of the Bristol Wearable Computing Initiative. We are researching processing techniques for data from accelerometers which enable the wearable computer to determine the user's activity. Techniques already employed by others have been explored and we propose new methods for analysing the data delivered by these devices. We try to minimise the number of devices needed by using a single X-Y accelerometer device. Using our techniques we have adapted our GPS based Tourist Guide application to vary its multimedia presentation according to the user's activity as well as location.
259 citations
TL;DR: The Mediacup project as discussed by the authors provides insights into the augmentation of artefacts with sensing, processing, and communication capabilities, and into the provision of an open infrastructure for information exchange among artefacts.
249 citations