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Learning Occupancy in Single Person Offices with Mixtures of Multi-lag Markov Chains

Authors: 
Publication Type: 
Refereed Conference Meeting Proceeding
Abstract: 
The problem of real-time occupancy forecasting for single person offices is critical for energy efficient buildings which use predictive control techniques. Due to the highly uncertain nature of occupancy dynamics, the modeling and prediction of occupancy is a challenging problem. This paper proposes an algorithm for learning and predicting single occupant presence in office buildings, by considering the occupant behaviour as an ensemble of multiple Markov models at different time lags. This model has been tested using real occupancy data collected from PIR sensors installed in three different buildings and compared with state of the art methods, reducing the error rate by on average 5% over the best comparator method.
Conference Name: 
ICTAI 2013
Proceedings: 
IEEE International Conference on Tools with Artificial Intelligence (ICTAI) - 2013
Digital Object Identifer (DOI): 
10.1109/ICTAI.2013.32
Publication Date: 
06/11/2013
Pages: 
151 - 158
Conference Location: 
United States of America
Institution: 
National University of Ireland, Cork (UCC)
Open access repository: 
No