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Non-homogeneous Markov models for sequential pattern mining of healthcare data

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Garg, L., McClean, SI, Meenan, BJ and Millard, P. (2009) Non-homogeneous Markov models for sequential pattern mining of healthcare data. IMA Journal of Management Mathematics, 20 (4). pp. 327-344. [Journal article]

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URL: http://dx.doi.org/10.1093/imaman/dpn030

DOI: doi:10.1093/imaman/dpn030

Abstract

Sequential pattern mining has been a popular data mining technique for extracting useful information from large databases and has successfully been used for numerous industrial and commercial problems. This paper presents a new mathematical modelling application to healthcare, providing important information to health service managers and policy makers to help them identify sequential patterns which require attention for efficiently managing scarce healthcare resources and developing effective healthcare management policies. In healthcare, these sequential patterns are analogous to the patient pathways. We present a non-homogeneous Markov model for identifying not only patient pathways which have high probability but also for identifying pathways which incur high cost or time. In order to have a more realistic model, we also consider time-dependent covariates and their impact on the pathways. An algorithm based on branch and bound global optimization is presented which can efficiently extract a required number of such patient pathways of interest. The approach is illustrated using historical data on geriatric patients from an administrative database of a London hospital.

Item Type:Journal article
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Computing and Information Engineering
Research Institutes and Groups:Computer Science Research Institute
Computer Science Research Institute > Information and Communication Engineering
ID Code:9853
Deposited By:Professor Sally McClean
Deposited On:28 Jan 2010 15:31
Last Modified:18 Aug 2011 11:53

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