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Learning Disentangled Representation by Exploiting Pretrained Generative Models: A Contrastive Learning View

ICLR 2022 · Image generation › Autoregressive and latent generation · approach: Hierarchical VQ-VAE generation

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use DisCo with a pretrained StyleGAN2 instead of CFDisentangled representation learning · Shapes3DMIG: 0.307 \pm 0.124 -> 0.512 \pm 0.068Helped
Use DisCo with a pretrained StyleGAN2 instead of CFDisentangled representation learning · Shapes3DDCI: 0.525 \pm 0.078 -> 0.708 \pm 0.048Helped
Add entropy-based domination loss (ablation)DisCo with hard-negative flipping · Shapes3DMIG: 0.134 -> 0.547Helped
Add entropy-based domination loss (ablation)DisCo with hard-negative flipping · Shapes3DDCI: 0.681 -> 0.730Helped
Flip hard negatives into positives (ablation)DisCo with entropy-based domination loss · Shapes3DDCI: 0.627 -> 0.730Helped
Represent image changes as differences in encoded representations instead of concatenation (ablation)DisCo · Shapes3DMIG: 0.023 -> 0.562Helped
Use contrastive learning instead of classification (ablation)DisCo variation space · Shapes3DMIG: 0.002 -> 0.562Helped
Use the W latent space rather than Z (ablation)DisCo with unit-length navigator matrix · Shapes3DMIG: 0.242 -> 0.547Helped
Use an orthonormal navigator matrix instead of a unit-length-column matrix in W (ablation)DisCo · Shapes3DMIG: 0.547 -> 0.551No clear effect
Use 3 fully-connected layers for the navigator instead of a unit-length-column matrix in W (ablation)DisCo · Shapes3DMIG: 0.547 -> 0.340Hurt
Use a ResNet-50 encoder instead of the lightweight encoder (ablation)DisCo · Shapes3DMIG: 0.562 -> 0.03Hurt
Set hard-negative threshold below 0.9 (ablation)DisCo · Shapes3DMIG: 0.508 -> 0.244Hurt

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