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this is ritesh srinivasan and welcome to my channel in this video lets look at this interesting research paper detect GPT detect GPT is a method for detecting AI generated text from Human written text so the key idea over here is that if you have a candidate passage or text okay which was generated from an AI model assuming gpt3 okay you want to detect if this text was from gpt3 or from any other or it is human written text okay so in this case it is whether it is from GPT 3 okay so what is done is that you take this text as input you give it to gpt3 you get a probability okay for this text you also use a model like T5 okay to generate some minor perturbations of this particular text those are these texts over here X1 X2 X N you also pass them to gpt3 and get their probabilities then what you do is that you compare the log ratio of right the log probability of P of X under EOS x 1 which is the perturbed samples so you sum it up basically you are taking the average of this log probabil