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Adaptive probability scheme for behaviour monitoring of the elderly using a specialised ambient device

Winkley, Jonathan; Jiang, Ping


Jonathan Winkley

Ping Jiang


A Hidden Markov Model (HMM) modified to work in combination with a Fuzzy System is utilised to determine the current behavioural state of the user from information obtained with specialised hardware. Due to the high dimensionality and not-linearly-separable nature of the Fuzzy System and the sensor data obtained with the hardware which informs the state decision, a new method is devised to update the HMM and replace the initial Fuzzy System such that subsequent state decisions are based on the most recent information. The resultant system first reduces the dimensionality of the original information by using a manifold representation in the high dimension which is unfolded in the lower dimension. The data is then linearly separable in the lower dimension where a simple linear classifier, such as the perceptron used here, is applied to determine the probability of the observations belonging to a state. Experiments using the new system verify its applicability in a real scenario.


Winkley, J., & Jiang, P. (2014). Adaptive probability scheme for behaviour monitoring of the elderly using a specialised ambient device. International Journal of Machine Learning and Cybernetics, 5(2), 293-307.

Journal Article Type Article
Acceptance Date Sep 14, 2012
Online Publication Date Oct 5, 2012
Publication Date 2014-04
Deposit Date May 19, 2015
Publicly Available Date May 19, 2015
Journal International journal of machine learning and cybernetics
Print ISSN 1868-8071
Electronic ISSN 1868-808X
Publisher Springer Verlag
Peer Reviewed Peer Reviewed
Volume 5
Issue 2
Pages 293-307
Keywords Hidden Markov model, Fuzzy system, Dimension reduction, Linear separation, Elderly monitoring
Public URL
Publisher URL
Copyright Statement ©2015 University of Hull
Additional Information The final publication is available at Springer via


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