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Andreas Krause

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Publications by Andreas Krause (bibliography)

2007

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Mutlu, Bilge, Krause, Andreas, Forlizzi, Jodi, Guestrin, Carlos and Hodgins, Jessica (2007): Robust, Lowcost, Non-intrusive Sensing and Recognition of Seated Postures. In: Proceedings of 20th ACM Symposium on User Interface Software and Technology October 7-10, 2007, 2007, Newport, RI, USA. .

“In this paper, we present a methodology for recognizing seated postures using data from pressure sensors installed on a chair. Information about seated postures could be used to help avoid adverse effects of sitting for long periods of time or to predict seated activities for a human-computer interface. Our system design displays accurate near-real-time classification performance on data from subjects on which the posture recognition system was trained by using a set of carefully designed, subject-invariant signal features. By using a near-optimal sensor placement strategy, we keep the number of required sensors low thereby reducing cost and computational complexity. We evaluated the performance of our technology using a series of empirical methods including (1) cross-validation (classification accuracy of 87% for ten postures using data from 31 sensors), and (2) a physical deployment of our system (78% classification accuracy using data from 19 sensors).”

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