Running

Hi,

I think I have set everything up correctly, where should I run 'director simulator.py' in order to properly produce a result? is their a specific command that should be used?
Thanks!

[anassinator]

It should be from the root of this repository, but it is possible this wont run anymore because director and tensorflow APIs were unstable them and have changed a lot since. I'm currently rewriting it to remove the director dependency and use a stable version of tensorflow to help with that.

That might explain... oh great would definitely like to keep updated on that!
Will sling you an email @hello@anassinator.com

can i ask when you might be finished with your up to date version? look forward to seeing it

[anassinator]

Sorry I’m on vacation this week. I’m hoping for sometime in the next two weeks.

awesome, enjoy!

Any update on the progress on removing the director dependancy?

[anassinator]

Sorry I've been distracted by some other tasks. So far I have managed to completely replace the director dependency with a simple pygame simulation, but still need to get the rest updated and interfacing with it.

That sounds great, pygame has proved really useful. Any idea when you might complete it? Would love to give it a try.

Managed to get it running by using ubuntu rather than Mac, awesome stuff!
Would love to learn more about the theory behind this, have you created any written work I could read on this topic?

[anassinator]

Sorry I took so long to get back to you. I've been busy so I had put this on hold for a while, but I will pick it back up this week. I can't really commit to an ETA to be honest.

I haven't written any paper explicitly on this, but I have outlined this in one section of a larger project. I'm attaching the relevant parts below.

dqn-obstacle-avoidance.pdf

No problem at all. I managed to get the simulator up and running on Ubuntu and I'm amazed by the result, awesome work!

I have 2 quick questions after reading your document.
Where might I be able to change the Hyper-parameters such as Learning rate, discount factor within the code if possible?
How might I zoom in on the simulator to get a better view?

Thanks!

[anassinator]

When you run director simulator.py --help you will find those options available as arguments to tweak.

As for zooming in, I don't remember and I don't have director set up right now. I believe it was just a mouse wheel or something. Otherwise, you might be ale to find something in director's user guide.

thanks for the help!

One more question sorry!

running 'director simulator.py --help' pulls up the option for arguments for obstacle density, learning rate etc. Apologies if it's obvious but how would I change these values and run?

This work has been very helpful, would love to be able to donate if you have somewhere I can do that!

[anassinator]

No worries! You can add command-line arguments as follows:

director simulator.py --learning-rate 0.1 --exploration 0

The order of the arguments doesn't matter. You would want to set the learning rate and exploration to 0 when done training to get nice results. Ideally, this would simply decrease automatically, but I haven't had time to do that yet.

Thanks for the kind words! I don't have anything set up for personal donations, but this work is being used for a drone we're developing at McGill Robotics (a non-profit student organization) and we will be accepting donations in our upcoming Seeds of Change campaign next week if you're interested. Thanks again!