Credit card fraud detection method and device based on clustering sample and limit gradient
A detection method and credit card technology, applied in data processing applications, instruments, payment systems, etc., can solve problems such as data imbalance and effect discount, achieve good classification effect, good detection accuracy, and improve data quality
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[0031] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. In addition, the technical features in the various embodiments or a single embodiment provided by the present invention can be arbitrarily combined with each other to form a feasible technical solution. This combination is not restricted by the sequence of steps and / or the structural composition mode, but must be in the order of Those...
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