Comments (10)
@shivanikishnani @tunglm2203 What version of python, pytorch, mujoco, and multiworld are you using? I have a slight suspicion that that may be related to the difference in performance. I'm also unsure what else could be the cause.
I'm using the following:
- multiworld: f711cdb (git hash)
- python: 3.5.2
- torch: 0.4.1.post2
- mujoco_py: 1.50.1.59
- gym: 0.10.5
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Did you modify the example script? The fact that the Average Returns start at -40 seems odd. Also, I wouldn't actually look at "Average return" too much. Distances in the latent space can be hard to interpret. Here's an example of what a run should look like, which also plots the most intuitive metrics (final hand/puck distance):
I made this plot using my version of viskit. I'll run more seeds now with the latest code, but this should work consistently.
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Okay, I ran more seeds and it does seem to have high variance in the performance, as shown below.
If it weren't for the green and purple curves, it'd basically be the same as in the paper. I'll update here if I find out why it's such higher variance, but I think this confirms that the code is mostly working.
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Hi @vitchyr, I am trying to run RIG algorithm with Pusher environment, I also faced the same above problem. I try to run 5 different seeds, the AverageReturn and Final hand_distance Mean seem to the same scale with yours, but the Final puck_distance Mean is different, it's similar to your green and purple curves.
There 3 experiments (red, green, purple) I am still running.
How can reproduce the same results in paper?
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The RIG implementation currently uses the "online VAE training." However, the main experiments in the RIG paper use a pre-trained VAE.
The settings can be found on this branch, and should produce results more similar to the RIG paper: https://github.com/vitchyr/rlkit/tree/v0.1.2
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Hi!
Are the results you posted #31 (comment) based on the Online VAE or are they using a pre-trained VAE?
I've been trying to train RIG's Pusher using version 0.1.2, but my results don't seem anything like the ones in the paper. I tried it the result with multiple seeds, as well. The parameters are the same as in example/rig/pusher/rig.py. An example of one of the results is below. If the issue is just that there is a lot of variance while using different seeds, do you know why that may be? Could you tell me what seeds you were using?
oracle.py works fine, by the way.
RIG's Reacher ('SawyerReachXYZEnv-v1' and also 'SawyerReachXYZEnv-v0) also don't seem to be working as indicated in the paper and have high variance. For reacher, I'm training the VAE on 100 images, as indicated in the paper, and am training it for 100 epochs. I'm running the entire algorithm 100 epochs as well. The other parameters are the same as for Pusher.
I'd really appreciate it if you could let me know if something is wrong. Thanks!
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@vitchyr I tested it with your linux-gpu-env.yml's environment as well, which had the same package versions. I was using the most recent version of multiworld, but have now installed the package at that commit.
I had to install the some libraries that were missing from your environment specification that are needed to run the experiments- including torchvision.* My torchvision install also installed a different version of pytorch (1.3.0), which is what was being used later.
What version of torchvision are you using and how did you install it without affecting your pytorch installation? It's being used in vae_trainer.py.
- Let me know if you want me to create a pull request with an updated yml file
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It was either the old version of multiworld or pytorch which made a difference, but the experiments seem to be learning now.
However, they seem to have a much higher variance than the ones you posted above. I'm running it with multiple seeds to see if those make a difference. The final hand distance of the pusher is given below, for some reason, it's not plotting along with reacher. I'm smoothing out the curves.
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@shivanikishnani Did running multiple seeds make a difference?
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