AMWSPLAdaboost Credit Card Fraud Detection Method Based on Enhanced Base Classifier Diversity

With the popularity of online transactions, credit card fraud incidents are occurring more and more frequently, and adaptive enhancement (Adaboost) models are most often used in credit card fraud detection, so how to improve the robustness of the traditional Adaboost algorithm has become a hot issue...

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Main Authors: Wang Ning, Siliang Chen, Songyi Lei, Xiongbin Liao
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10168877/
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author Wang Ning
Siliang Chen
Songyi Lei
Xiongbin Liao
author_facet Wang Ning
Siliang Chen
Songyi Lei
Xiongbin Liao
author_sort Wang Ning
collection DOAJ
description With the popularity of online transactions, credit card fraud incidents are occurring more and more frequently, and adaptive enhancement (Adaboost) models are most often used in credit card fraud detection, so how to improve the robustness of the traditional Adaboost algorithm has become a hot issue. A large part of the reason for the poor robustness of the traditional Adaboost algorithm is that the base classifier is selected in a way that is uniquely oriented to the error rate. Therefore, this paper uses an adaptive hybrid weighted self-paced learning method to improve the objective function of the Adaboost algorithm, thus changing the strategy of base learner selection in the Adaboost algorithm, while the self-paced learning selected in this paper The self-adaptive threshold finding algorithm selected in this paper can well mitigate the influence of human experience on model training. This paper also selects a double-fault measure to calculate the degree of diversity among base categories from the perspective of generalization error, adds the influence coefficient of diversity to the weight calculation of weak learners, and gives the optimal range of influence coefficients through experiments. Finally, the proposed improved algorithm is applied to credit card fraud scenario, and the experiments are compared with several effective Adaboost improvement algorithms, which show that the combined performance of the proposed improved algorithm is better than other algorithms in terms of AUC value and F1 value.
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spelling doaj.art-9ff047bda32f491db9b062b18892b7b92023-07-10T23:00:16ZengIEEEIEEE Access2169-35362023-01-0111664886649610.1109/ACCESS.2023.329095710168877AMWSPLAdaboost Credit Card Fraud Detection Method Based on Enhanced Base Classifier DiversityWang Ning0https://orcid.org/0009-0008-1156-0894Siliang Chen1https://orcid.org/0000-0001-7345-6365Songyi Lei2Xiongbin Liao3College of Computer and Communication, Hunan Institute of Engineering, Xiangtan, ChinaCollege of Computational Science and Electronics, Hunan Institute of Engineering, Xiangtan, ChinaCollege of Computational Science and Electronics, Hunan Institute of Engineering, Xiangtan, ChinaCollege of Computational Science and Electronics, Hunan Institute of Engineering, Xiangtan, ChinaWith the popularity of online transactions, credit card fraud incidents are occurring more and more frequently, and adaptive enhancement (Adaboost) models are most often used in credit card fraud detection, so how to improve the robustness of the traditional Adaboost algorithm has become a hot issue. A large part of the reason for the poor robustness of the traditional Adaboost algorithm is that the base classifier is selected in a way that is uniquely oriented to the error rate. Therefore, this paper uses an adaptive hybrid weighted self-paced learning method to improve the objective function of the Adaboost algorithm, thus changing the strategy of base learner selection in the Adaboost algorithm, while the self-paced learning selected in this paper The self-adaptive threshold finding algorithm selected in this paper can well mitigate the influence of human experience on model training. This paper also selects a double-fault measure to calculate the degree of diversity among base categories from the perspective of generalization error, adds the influence coefficient of diversity to the weight calculation of weak learners, and gives the optimal range of influence coefficients through experiments. Finally, the proposed improved algorithm is applied to credit card fraud scenario, and the experiments are compared with several effective Adaboost improvement algorithms, which show that the combined performance of the proposed improved algorithm is better than other algorithms in terms of AUC value and F1 value.https://ieeexplore.ieee.org/document/10168877/Credit card fraud detectionadaboostloss functionself-paced learningdiversity
spellingShingle Wang Ning
Siliang Chen
Songyi Lei
Xiongbin Liao
AMWSPLAdaboost Credit Card Fraud Detection Method Based on Enhanced Base Classifier Diversity
IEEE Access
Credit card fraud detection
adaboost
loss function
self-paced learning
diversity
title AMWSPLAdaboost Credit Card Fraud Detection Method Based on Enhanced Base Classifier Diversity
title_full AMWSPLAdaboost Credit Card Fraud Detection Method Based on Enhanced Base Classifier Diversity
title_fullStr AMWSPLAdaboost Credit Card Fraud Detection Method Based on Enhanced Base Classifier Diversity
title_full_unstemmed AMWSPLAdaboost Credit Card Fraud Detection Method Based on Enhanced Base Classifier Diversity
title_short AMWSPLAdaboost Credit Card Fraud Detection Method Based on Enhanced Base Classifier Diversity
title_sort amwspladaboost credit card fraud detection method based on enhanced base classifier diversity
topic Credit card fraud detection
adaboost
loss function
self-paced learning
diversity
url https://ieeexplore.ieee.org/document/10168877/
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AT siliangchen amwspladaboostcreditcardfrauddetectionmethodbasedonenhancedbaseclassifierdiversity
AT songyilei amwspladaboostcreditcardfrauddetectionmethodbasedonenhancedbaseclassifierdiversity
AT xiongbinliao amwspladaboostcreditcardfrauddetectionmethodbasedonenhancedbaseclassifierdiversity