Fraud Detection with Machine Learning - Model Comparison

Author(s):  
Guilherme Ferreira Pelucio Salome ◽  
Jo�ão Luiz Chela ◽  
Jo�ão Carlos Pacheco Junior
Author(s):  
Dimitrios Kampelopoulos ◽  
George N. Papastavrou ◽  
George P. Kousiopoulos ◽  
Nikolaos Karagiorgos ◽  
Sotirios K. Goudos ◽  
...  

Author(s):  
Pratyush Sharma ◽  
Souradeep Banerjee ◽  
Devyanshi Tiwari ◽  
Jagdish Chandra Patni

In today's world, we are on an express train to a cashless society which has led to a tremendous escalation in the use of credit card transactions. But the flipside of this is that fraudulent activities are on the increase; therefore, implementation of a methodical fraud detection system is indispensable to cardholders as well as the card-issuing banks. In this paper, we are going to use different machine learning algorithms like random forest, logistic regression, Support Vector Machine (SVM), and Neural Networks to train a machine learning model based on the given dataset and create a comparative study on the accuracy and different measures of the models being achieved using each of these algorithms. Using the comparative analysis on the F_1 score, we will be able to predict which algorithm is best suited to serve our purpose for the same. Our study concluded that Artificial Neural Network (ANN) performed best with an F_1 score of 0.91.


2021 ◽  
pp. 890-898
Author(s):  
Miguel Ángel Quiroz Martinez ◽  
Byron Alcívar Martínez Tayupanda ◽  
Sulay Stephanie Camatón Paguay ◽  
Luis Andy Briones Peñafiel

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
Matthew Behnke ◽  
Nathan Briner ◽  
Drake Cullen ◽  
Katelynn Schwerdtfeger ◽  
Jackson Warren ◽  
...  

2018 ◽  
Author(s):  
Steen Lysgaard ◽  
Paul C. Jennings ◽  
Jens Strabo Hummelshøj ◽  
Thomas Bligaard ◽  
Tejs Vegge

A machine learning model is used as a surrogate fitness evaluator in a genetic algorithm (GA) optimization of the atomic distribution of Pt-Au nanoparticles. The machine learning accelerated genetic algorithm (MLaGA) yields a 50-fold reduction of required energy calculations compared to a traditional GA.


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