A Non-Parametric Test to Detect Data-Copying in Generative Models
A Non-Parametric Test to Detect Data-Copying in Generative Models
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发表时间:
2020-04
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通讯作者:
Casey Meehan;Kamalika Chaudhuri;S. Dasgupta
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作者:
Casey Meehan;Kamalika Chaudhuri;S. Dasgupta
Detecting overfitting in generative models is an important challenge in machine learning. In this work, we formalize a form of overfitting that we call {\em{data-copying}} -- where the generative model memorizes and outputs training samples or small variations thereof. We provide a three sample non-parametric test for detecting data-copying that uses the training set, a separate sample from the target distribution, and a generated sample from the model, and study the performance of our test on several canonical models and datasets. For code \& examples, visit this https URL