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In this paper we introduce the idea of using a reliability measure associated to the predictions made by recommender systems based on collaborative filtering. This reliability measure is based on the usual notion that the more reliable a prediction, the less liable to be wrong. Here we will define a general reliability measure suitable for any arbitrary(More)
The safety of a railway network is a very important issue considered very labour-intensive. Authors have developed different approaches in order to detect automatically the safety for mid-small railway networks. Although these approaches are very simple to implement, they have the drawback of being unsuitable to large networks since the algorithm takes(More)
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