Journal
TRANSPORTMETRICA A-TRANSPORT SCIENCE
Volume 10, Issue 2, Pages 89-118Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/18128602.2012.675527
Keywords
Bayesian networks; binary regression; quantitative input; risk assessment
Funding
- The Hong Kong Polytechnic University [J-BB7F, G-YJ48]
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This article presents an innovative approach towards integrating logistic regression and Bayesian networks (BNs) into maritime risk assessment. The approach has been developed and applied to a case study in the maritime industry, but has the potential for being adapted to other industries. Various applications of BNs as a modelling tool in maritime risk analysis have been widely seen in relevant literature. However, a common criticism of the Bayesian approach is that it requires too much information in the form of prior probabilities, and that such information is often difficult, if not impossible, to obtain in risk assessment. The traditional and common way to estimate prior probability of an accident is to use expert estimation (inputs) as a measure of uncertainty in risk analysis. In order to address the inherited problems associated with subjective probability (expert estimation), this study develops a binary logistic regression method of providing input for a BN, making use of different maritime accident data resources. Relevant risk assessment results have been achieved by measuring the safety levels of different types of vessels in different situations.
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