Memento
This group of tasks test the agent’s ability to use memory (within an episode) to pick the correct path. The agent is presented with a prompt (in the form of a sleeping monster of a specific type), and then navigates along a corridor. At the end of the corridor the agent reaches a fork, and must choose a direction. One direction leads to a grid bug, which if killed terminates the episode with +1 reward. All other directions lead to failure through a invisible trap that terminates the episode when activated. The correct path is determined by the cue seen at the beginning of the episode.
We provide three versions of this environment: one with a short corridor before
a fork with two paths to choose from (MiniHack-Memento-Short-F2-v0), one with a
long corridor with a two-path fork (MiniHack-Memento-F2-v0), and one with a long
corridor and a four-fork path (MiniHack-Memento-F4-v0).
An example of the MiniHack-Memento-F4-v0 task:
Reward
The agent receives a reward of 1 for killing the grid bug (navigating along the correct corridor) and -1 for stepping on the trap (naving along the incorrect corridor). Both events terminate the episode.
Source
All Environments
Name |
Capability |
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Memory |
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Memory |
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Memory |