NAMESAKES: Probing Identity Memorization in Text-to-Image Models
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Computer Science > Computer Vision and Pattern Recognition
Title:NAMESAKES: Probing Identity Memorization in Text-to-Image Models
Abstract:Text-to-image (T2I) models generate realistic likenesses of some individuals when prompted with their names, raising privacy concerns. However, distinguishing whether a generated face is memorized or fabricated currently requires ground-truth photos, access to training data, or white-box access to model internals, limiting applicability. We introduce a fully black-box behavioral probe that distinguishes between these regimes while requiring no reference photos or prior knowledge of training data. To benchmark this task, we present the NAMESAKES dataset of over one thousand names and faces of public figures spanning a wide range of fame levels, along with perturbed, less famous names. Experiments on state-of-the-art T2I models show that our probe substantially predicts identity memorization and separates memorized from unrecognized names, with further insights into differences across model families.
| Subjects: | Computer Vision and Pattern Recognition (cs.CV); Computation and Language (cs.CL) |
| Cite as: | arXiv:2606.20155 [cs.CV] |
| (or arXiv:2606.20155v1 [cs.CV] for this version) | |
| https://doi.org/10.48550/arXiv.2606.20155
arXiv-issued DOI via DataCite (pending registration)
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