Detection of fraud in credit card transactions with machine learning algorithms

Todays, computers and systems have a computer have great importance. Also, when we use the Machine Learning method, one of the titles of Artificial Intelligence, in these systems, we can see what a computer can do without a human. There is the concept of the Internet that makes these systems more indispensable. The Internet, which plays a significant role in our lives, also has a dark side. The Internet is now indispensable today. Although the Internet, which provides many opportunities, such as accessing any information and controlling every device, makes our work easier, devices connected to the Internet may be at risk. Therefore, criminals tend to this environment. Crimes committed on the Internet are called Cyber Crimes. Today, people do their shopping online with credit cards. Malware that has infected a device with which we shop is one of the methods of stealing credit card information, although there are reliable websites. This thesis includes an application made with Artificial Intelligence to determine whether the purchases made with a credit card are made by fraudsters using a stolen or copied credit card.