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A Domain Agnostic Measure for Monitoring and Evaluating GANs

NeurIPS 2019 · Image generation › GANs · approach: GAN latent optimization and evaluation · 24 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use the duality gap to monitor training rather than relying on generator and discriminator lossesGAN training · Mixture of Gaussiansconvergence and instability detection: stable models: 0.04, 0.14, 0.03; unstable models: 13, 1.22, 12.09Helped
Use the minimax loss to assess generator sample qualityGAN generator · RING, SPIRAL, GRIDcorrelation with covered modes: -0.97 (RING), -0.93 (SPIRAL), -0.95 (GRID)Helped
Use the minimax loss instead of Inception Score to detect mode invention and intra-mode collapseGAN generator evaluation · CIFAR10 mode sensitivitymode-change sensitivityHelped
Use the minimax loss to detect visual sample distortionsGAN generator evaluation · CIFAR10 image distortionsvisual quality sensitivityNo clear effect
Add regularization to the GAN training objectiveGAN on a 2D submanifold Gaussian mixture embedded in 3D · 2D submanifold Gaussian mixtureduality gap progression and collapse: regularized version stable beyond 200K iterations; unregularized version collapses after 50K iterationsHelped
Evaluate with the duality gap and minimax metric instead of image-specific scoresGAN models · CIFAR10 model rankingmodel ranking agreement: NS + SN rank 1; NS + SN + GP rank 2; NS rank 3; WGAN + GP rank 4No clear effect
Use duality gap and minimax scores on cosmology data instead of relying on FIDWGAN-GP · CosmologyPearson correlation with domain-specific scores: Dual gap: 0.53, 0.38, 0.71; FID: 0.40, 0.21, 0.34Helped
Use a mixture of previous and future training snapshots rather than only past snapshots to approximate the duality gap (ablation)Snapshot-based duality-gap approximation · GAN trainingapproximation qualityHelped
Use only past training snapshots to approximate the duality gap (ablation)Snapshot-based duality-gap approximation · GAN trainingapproximation qualityHurt

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