airsplay / R2R-EnvDrop

PyTorch Code of NAACL 2019 paper "Learning to Navigate Unseen Environments: Back Translation with Environmental Dropout"

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Why the loc_elevation is not updated in the env?

ZuoJiaxing opened this issue · comments

commented

loc_heading = normalized_heading - base_heading

I'm curious about why the elevation of the navigable candidates is not updated as the heading, such as:
loc_heading = normalized_heading - base_heading
loc_elevation = normalized_elevation - base_elevation

The normalization guarantees that the location is related to the current "front" view. In the paper of Speaker-Follower Models for Vision-and-Language Navigation, the "front" view is always set with elevation=0. We follow the practice here.