Unsupervised Panoptic Interpretation of Latent Spaces in GANs Using Space-Filling Vector Quantization
Interpretability;Interpretable Latent Space;Interpretable Directions;Space-Filling Vector Quantization
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@misc{
vali2024unsupervised,
title={Unsupervised Panoptic Interpretation of Latent Spaces in {GAN}s Using Space-Filling Vector Quantization},
author={Mohammad Hassan Vali and Tom B{\"a}ckstr{\"o}m},
year={2024},
url={https://openreview.net/forum?id=1poUSIGSCI}
}
Generative adversarial networks (GANs) learn a latent space whose samples can be mapped to real-world images. Such latent spaces are difficult to interpret. Some earlier supervised methods aim to create an interpretable latent space or discover interpretable directions that require exploiting data labels or annotated synthesized samples for training. However, we propose using a modification of vector quantization called space-filling vector quantization (SFVQ), which quantizes the data on a piece-wise linear curve. SFVQ can capture the underlying morphological structure of the latent space and thus make it interpretable. We apply this technique to model the latent space of pretrained StyleGAN2 and BigGAN networks on various datasets. Our experiments show that the SFVQ curve yields a general interpretable model of the latent space that determines which part of the latent space corresponds to what specific generative factors. Furthermore, we demonstrate that each line of SFVQ's curve can potentially refer to an interpretable direction for applying intelligible image transformations. We also showed that the points located on an SFVQ line can be used for controllable data augmentation.
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~Mohammad_Hassan_Vali1 ~Tom_Bäckström1
Mohammad Hassan Vali Tom Bäckström
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Interpretability Interpretable Latent Space Interpretable Directions Space-Filling Vector Quantization
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vali|unsupervised_panoptic_interpretation_of_latent_spaces_in_gans_using_spacefilling_vector_quantization
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interpretability and explainable AI
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Unsupervised Panoptic Interpretation of Latent Spaces in GANs Using Space-Filling Vector Quantization
ICLR 2025 Conference Desk Rejected Submission
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