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The upsurge in piracy and the impact of recent environmental disasters have highlighted the need to improve maritime surveillance. Governmental and private initiatives have developed monitoring systems with improved acquisition and analysis capabilities. These systems rely on one major component, namely the detection of abnormal ship behaviour. This implies… (More)
Current maritime traffic monitoring systems are not sufficiently adapted to the identification of maritime accident risk. It is very difficult for operators responsible for monitoring traffic to identify which vessels are at risk among all the shipping traffic displayed on their screen. They are overwhelmed by huge amount of kinematic ship data to be… (More)
Detection of abnormal movements of mobile objects has recently received a lot of attention due to the increasing availability of movement data and their potential for ensuring security in many different contexts. As timely detection of these events is often important, most current approaches use automated data-driven approaches. While these approaches have… (More)
—Maritime traffic surveillance requires a very accurate and continuous analysis of the sea. This area consists of many different objects, actors and rules. Monitoring such a wide and complex area requires adapted visual tools, such as Maritime Surveillance Systems. These tools help identifying abnormal behaviours, which can lead to risky situations. We… (More)
Keywords: Oil platforms Offshore oil fields Pirate attacks Bayesian networks Quantitative and qualitative knowledge a b s t r a c t In recent years, pirate attacks against shipping and oil field installations have become more frequent and more serious. This article proposes an innovative solution to the problem of offshore piracy from the perspective of the… (More)
Results obtained by using Analyst, a long term diffusive sampler, for monitoring volatile aromatic compound in the town of Viterbo are presented. Benzene, toluene, ethylbenzene and also the three xylene isomers are evaluated during six months of measurements. The obtained values and also the ratios of some pollutants are reported and discussed.