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- W4200465265 abstract "Abstract As credit card becomes the most popular payment mode particularly in the online sector, the fraudulent activities using credit card payment technologies are rapidly increasing as a result. For this end, it is obligatory for financial institutions to continuously improve their fraud detection systems to reduce huge losses. The purpose of this paper is to develop a novel system for credit card fraud detection based on sequential modeling of data, using attention mechanism and LSTM deep recurrent neural networks. The proposed model, compared to previous studies, considers the sequential nature of transactional data and allows the classifier to identify the most important transactions in the input sequence that predict at higher accuracy fraudulent transactions. Precisely, the robustness of our model is built by combining the strength of three sub-methods; the uniform manifold approximation and projection (UMAP) for selecting the most useful predictive features, the Long Short Term Memory (LSTM) networks for incorporating transaction sequences and the attention mechanism to enhance LSTM performances. The experimentations of our model give strong results in terms of efficiency and effectiveness." @default.
- W4200465265 created "2021-12-31" @default.
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- W4200465265 date "2021-12-01" @default.
- W4200465265 modified "2023-10-09" @default.
- W4200465265 title "Enhanced credit card fraud detection based on attention mechanism and LSTM deep model" @default.
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- W4200465265 doi "https://doi.org/10.1186/s40537-021-00541-8" @default.
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