An increase in train traffic is a politically welcomed trend, which on the other hand has led to too high capacity utilisation at times and a railway network sensitive to disturbances. Delays are easily spread, causing high cost. A mean of controlling the secondary delays is to use efficient operational prioritisation rules for trains in conflict. This paper presents an evaluation of the curren...

Regression testing is an expensive, but important, process. Unfortunately, there may be insufficient resources to allow for the re–execution of all test cases during regression testing. In this situation, test case prioritisation techniques aim to improve the effectiveness of regression testing, by ordering the test cases so that the most beneficial are executed first. Previous work on regressi...

We give a general result on the average-case performance of certain greedy algorithms. These are derived from algorithms in which the possible operations performed at each step are prioritised. This type of prioritisation has occurred in previously studied heuristics for finding large subgraphs with special properties in random regular graphs, such as maximum independent sets and minimum domina...

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A new Group Fuzzy Preference Programming (GFPP) method for fuzzy prioritisation in the Analytic Hierarchy Process is proposed. The assessment of the priorities from fuzzy pairwise comparison judgements is formulated as an optimisation problem, maximising the group’s overall satisfaction with the group solution. Unlike the existing fuzzy prioritisation methods, the GFPP method derives crisp prio...

Drug discovery is a high-risk, expensive and lengthy process taking at least 12 years and costing upwards of US$500 million per drug to reach the clinic. For neglected diseases, the drug discovery process is driven by medical need and guided by pre-defined target product profiles. Assessment and prioritisation of the most promising targets for entry into screening programmes is crucial for maxi...

BACKGROUND Regulatory authorities focus on promoting compliance of hospitals with a variety of external demands. Due to the amount of these external demands, hospitals might prioritise to cope with the external demands. In this study, we explore to what extent a risk-based prioritisation system developed by one Dutch hospital, is applicable in other hospitals as well. The specific research ques...