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[Music] hi my name is vintage thomna then I am a director of data science at PayPal forget to pull the typo in the slide this was earlier presented in another conference and I had trouble getting the data slides here so Im going to be talking about graph based representation learning to prevent payment coalition fraud at PayPal we work on we are basically a machine learning shop building machine learning models for a variety of applications fraud is being our primary MO we also build machine learning models for credit approval to marketing to you know estimating the value of our consumers to predicting most valuable consumers from our data set so todays talk is mainly going to be on the fraud side of things I briefly explained elaborate more on the how we tackle fraud at PayPal at a very high level and dive into some of the machine learning algorithms we apply to detect fraudsters and some of the one of the some early research from some of the experiments I did and conclude my talk