Understanding and Mitigating Copying in Diffusion Models
- URL: http://arxiv.org/abs/2305.20086v1
- Date: Wed, 31 May 2023 17:58:02 GMT
- Title: Understanding and Mitigating Copying in Diffusion Models
- Authors: Gowthami Somepalli, Vasu Singla, Micah Goldblum, Jonas Geiping and Tom
Goldstein
- Abstract summary: Images generated by diffusion models like Stable Diffusion are increasingly widespread.
Recent works and even lawsuits have shown that these models are prone to replicating their training data, unbeknownst to the user.
- Score: 53.03978584040557
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Images generated by diffusion models like Stable Diffusion are increasingly
widespread. Recent works and even lawsuits have shown that these models are
prone to replicating their training data, unbeknownst to the user. In this
paper, we first analyze this memorization problem in text-to-image diffusion
models. While it is widely believed that duplicated images in the training set
are responsible for content replication at inference time, we observe that the
text conditioning of the model plays a similarly important role. In fact, we
see in our experiments that data replication often does not happen for
unconditional models, while it is common in the text-conditional case.
Motivated by our findings, we then propose several techniques for reducing data
replication at both training and inference time by randomizing and augmenting
image captions in the training set.
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