Picture of two heads

Open Access research that challenges the mind...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including those from the School of Psychological Sciences & Health - but also papers by researchers based within the Faculties of Science, Engineering, Humanities & Social Sciences, and from the Strathclyde Business School.

Discover more...

Modelling the reliability of search operations within the UK through Bayesian belief networks

Russell, A.H. and Quigley, J.L. and Van Der Meer, R.B. (2006) Modelling the reliability of search operations within the UK through Bayesian belief networks. In: International Conference on Availability, Reliability and Security 2006, 2006-04-20 - 2006-04-22.

PDF (Russelletal2006-modelling-reliability-search-rescue-operations)
Modelling_the_Reliability_of_Search_and_Rescue_Operations.pdf - Accepted Author Manuscript

Download (293kB) | Preview


This paper uses a Bayesian belief networks (BBN) methodology to assess the reliability of search and rescue (SAR) operations within the UK coastguard (maritime rescue) coordination centers. This is an extension of earlier work, which investigated the rationale of the government's decision to close a number of coordination centers. The previous study made use of secondary data sources and employed a binary logistic regression methodology to support the analysis. This study focused on the collection of primary data through a structured elicitation process, which resulted in the construction of a BBN. The main findings of the study are that approaches such as logistic regression are complementary to BBN's. The former provided a more objective assessment of associations between variables but was restricted in the level of detail that could be explicitly expressed within the model due to lack of available data. The latter method provided a much more detailed model but the validity of the numeric assessments was more questionable. Each method can be used to inform and defend the development of the other. The paper describes in detail the elicitation process employed to construct the BBN and reflects on the potential for bias.