2006 10th IEEE International Symposium on Wearable Computers (2006)

Montreux, Switzerland

Oct. 11, 2006 to Oct. 14, 2006

ISSN: 1550-4816

ISBN: 1-4244-0597-1

pp: 149-150

Eleftheria Katsiri , DSE, Imperial College London, 180, Queens Gate, London SW7 2AZ, UK. Email: ek@doc.ic.ac.uk

Alan Mycroft , Computer Laboratory, 15 JJ Thomson Avenue, Cambridge, CB3 0FD, UK. Email: am@cl.cam.ac.uk

ABSTRACT

This paper discusses a middleware component, the likelihood estimation service (LES), that allows the application of Bayesian reasoning to a real sensor-driven environment. Using LES, first, a Bayesian network is learned from location data. Once trained, the network is used in order to estimate the likelihood of users' spatio-temporal properties, such as the likelihood of their sighting in specific rooms. The learning algorithm is evaluated by calculating a confidence level. The output of the system is a first-order-logic predicate that is maintained in the SCAFOS middleware as approximate knowledge, even when the sensors fail.

INDEX TERMS

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CITATION

A. Mycroft and E. Katsiri, "Applying Bayesian Networks to Sensor-Driven Systems,"

*2006 10th IEEE International Symposium on Wearable Computers(ISWC)*, Montreux, Switzerland, 2006, pp. 149-150.

doi:10.1109/ISWC.2006.286370

CITATIONS