Text Classification from Labeled and Unlabeled Documents using EM
Machine Learning - Special issue on information retrieval
Robust Monte Carlo localization for mobile robots
Artificial Intelligence
Reducing the Calibration Effort for Probabilistic Indoor Location Estimation
IEEE Transactions on Mobile Computing
A taxonomy for radio location fingerprinting
LoCA'07 Proceedings of the 3rd international conference on Location-and context-awareness
Wireless local area network positioning
Ambient Intelligence for Scientific Discovery
EWSN'06 Proceedings of the Third European conference on Wireless Sensor Networks
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This paper summarizes a probabilistic approach for localizing people through the signal strengths of a wireless IEEE 802.1 lb network. Our approach uses data labeled by ground truth position to learn a probabilistic mapping from locations to wireless signals, represented by piecewise linear Gaussians. It then uses sequences of wireless signal data (without position labels) to acquire motion models of individual people, which further improves the localization accuracy. The approach has been implemented and evaluated in an office environment.