Lovro Šubelj (2008) . Prešeren awards for students.

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Abstract

In this work we present a new system for detecting automobile insurance fraud. Here fraudsters stage car accidents and than issue fake claims so they can gain funds from insurance company. Specially interesting are groups of organized individuals made up of fraudulent drivers, chiropractics, garage mechanics, police officers and others. Our system focuses mainly on detecting such groups. in contrast to many other solutions, we use networks for the representation of data. Networks are possibly the most natural representation of accidents data, moreover, they provide straightforward formulation of complex relations between different entities the system also provides visualization of final results to the domain expert, as it is believed, that fully automatic automobile fraud detection is impossible. We use networks for that part of the system as well, as the representation is clear and also relatively simple to implement, allows imputation of arbitrary domain knowledge and can be extended and improved in many ways. System was tested on real world data and the results were very good. We cannot estimate the efficiency in general, as the sample was smaller and unrepresentative, but we are setisfied with the results. We also got a similar response from the analytics of slovenian insurance company.

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