Questions tagged [wasserstein-gan]
For questions related to the Wasserstein GAN, introduced in "Wasserstein Generative Adversarial Networks" (2017, PMLR) by Martin Arjovsky et al.
9
questions
0
votes
1answer
36 views
What to do with a GAN that trained well but got worse over time?
I am training a WGAN-GP network based on the following paper, though I am using a different dataset. Now, for the first ~ 60-70 epochs, my network trained really well, which I could see in the loss ...
1
vote
0answers
32 views
How can I estimate the minimum number of training samples needed to get interesting results with WGAN?
Let's say we have a WGAN where the generator and critic have 8 layers and 5 million parameters each. I know that the greater the number of training samples the better, but is there a way to know the ...
1
vote
1answer
45 views
Classifying generated samples with Wasserstein-GAN as real or fake
I'm quite new to GANs and I am trying to use a Wasserstein GAN as an augmentation technique. I found this article
https://www.sciencedirect.com/science/article/pii/S2095809918301127,
and would like to ...
2
votes
1answer
84 views
Aren't scores in the Wasserstein GAN probabilities?
I am quite new to GAN and I am reading about WGAN vs DCGAN.
Relating to the Wasserstein GAN (WGAN), I read here
Instead of using a discriminator to classify or predict the probability of generated ...
5
votes
0answers
136 views
Wasserstein GAN: Implemention of Critic Loss Correct?
The WGAN paper concretely proposes Algorithm 1 (cf. page 8). Now, they also state what their loss for the critic and the generator is.
When implementing the critic loss (so lines 5 and 6 of Algorithm ...
1
vote
0answers
31 views
WGAN-GP Loss formalization
I have to write the formalization of the loss function of my network, built following the WGAN-GP model. The discriminator takes 3 consecutive images as input (such as 3 consecutive frames of a video) ...
3
votes
1answer
183 views
What is the reason for mode collapse in GAN as opposed to WGAN?
In this article I am reading:
$D_{KL}$ gives us inifity when two distributions are disjoint. The value of $D_{JS}$ has sudden jump, not differentiable at $\theta=0$. Only Wasserstein metric provides ...
1
vote
0answers
33 views
Under what conditions can one find the optimal critic in WGAN?
The Kantorovich-Rubinstein duality for the optimal transport problem implies that the Wasserstein distance between two distributions $\mu_1$ and $\mu_2$ can be computed as (equation 2 in section 3 in ...
1
vote
0answers
23 views
Wasserstein GAN with non-negative weights in the critic
I want to train a WGAN where the convolution layers in the critic are only allowed to have non-negative weights (for a technical reason). The biases, nonetheless, can take both +/- values. There is no ...
