Cannot find SemExpITMPolicyV2, SemExpITMPolicyV3

[JeffreyYH]

I was trying to run the eval.py code invlfm/semexp_env, in this line (14, from vlfm.semexp_env.semexp_policy import SemExpITMPolicyV2, SemExpITMPolicyV3) of eval.py file, I was not able to find SemExpITMPolicyV2 and SemExpITMPolicyV3 in this repo. Is there any way to provide these two files and also the training files?

[naokiyokoyama]

Seems like it was removed in a recent commit. Here is the latest commit before it was deleted:

https://github.com/bdaiinstitute/vlfm/blob/456ccef4a0a9ba2fdc863c0371e1e015298b3e30/vlfm/semexp_env/semexp_policy.py

[JeffreyYH]

Thank you for your reply! Even in this commit, the two policy classes

class SemExpITMPolicyV2(SemExpMixin, ITMPolicyV2):
    pass
class SemExpITMPolicyV3(SemExpMixin, ITMPolicyV3):
    pass

are all just empty.

In addition, in the repo I could not find arguments and envs either.

from arguments import get_args 
from envs import make_vec_envs

[naokiyokoyama]

They are not empty, they inherit an ITMPolicy combined with a mixin class.

Those imports assume that you have the repo fort Gibson ObjectNav installed https://github.com/devendrachaplot/Object-Goal-Navigation

[JeffreyYH]

Thank you! So shall I use the habitat version that Object-Goal-Navigation uses? Since I encountered many errors using the version from the installation instruction of the vlfm repo.

[naokiyokoyama]

Yes, you have to use the habitat version they use