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Ensemble learning for credit card fraud detection

Published: 11 January 2018 Publication History

Abstract

Timely detection of fraudulent credit card transactions is a business critical and challenging problem in Financial Industry. Specifically, we must deal with the highly skewed nature of the dataset, that is, the ratio of fraud to normal transactions is very small. In this work, we present an ensemble machine learning approach as a possible solution to this problem. Our observation is that Random Forest is more accurate in detecting normal instances, and Neural Network is for detecting fraud instances. We present an ensemble method - based on a combination of random forest and neural network - which keeps the best of both worlds, and is able to predict with high accuracy and confidence the label of a new sample. We experimentally validate our observations on real world datasets.

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CODS-COMAD '18: Proceedings of the ACM India Joint International Conference on Data Science and Management of Data
January 2018
379 pages
ISBN:9781450363419
DOI:10.1145/3152494
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Association for Computing Machinery

New York, NY, United States

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Published: 11 January 2018

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Author Tags

  1. deep learning
  2. fraud detection
  3. random forest

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CoDS-COMAD '18

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CODS-COMAD '18 Paper Acceptance Rate 50 of 150 submissions, 33%;
Overall Acceptance Rate 197 of 680 submissions, 29%

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