Umaze

Description

The data is collected from the AntMaze_UMaze-v4 environment, which contains a U shape maze. Every episode has the same fixed goal and reset locations. The success rate of all the trajectories is more than 90%, failed trajectories occur because the Ant flips and can’t stand up again. Also note that when the Ant reaches the goal the episode doesn’t terminate or generate a new target leading to a reward accumulation. The Ant reaches the goals by following a set of waypoints using a goal-reaching policy trained using SAC.

Dataset Specs

Total Steps	1000000
Total Episodes	1430
Dataset Observation Space	Dict('achieved_goal': Box(-inf, inf, (2,), float64), 'desired_goal': Box(-inf, inf, (2,), float64), 'observation': Box(-inf, inf, (27,), float64))
Dataset Action Space	Box(-1.0, 1.0, (8,), float32)
Algorithm	QIteration+SAC
Author	Alex Davey
Email	alexdavey0@gmail.com
Code Permalink	https://github.com/rodrigodelazcano/d4rl-minari-dataset-generation
Minari Version	0.4.3 (supported)
Download	minari download D4RL/antmaze/umaze-v1

Environment Specs

The following table rows correspond to the Gymnasium environment specifications used to generate the dataset. To read more about what each parameter means you can have a look at the Gymnasium documentation https://gymnasium.farama.org/api/registry/#gymnasium.envs.registration.EnvSpec

This environment can be recovered from the Minari dataset as follows:

import minari

dataset = minari.load_dataset('D4RL/antmaze/umaze-v1')
env  = dataset.recover_environment()

ID	AntMaze_UMaze-v4
Observation Space	Dict('achieved_goal': Box(-inf, inf, (2,), float64), 'desired_goal': Box(-inf, inf, (2,), float64), 'observation': Box(-inf, inf, (27,), float64))
Action Space	Box(-1.0, 1.0, (8,), float32)
entry_point	gymnasium_robotics.envs.maze.ant_maze_v4:AntMazeEnv
max_episode_steps	700
reward_threshold	None
nondeterministic	False
order_enforce	True
disable_env_checker	False
kwargs	{'maze_map': [[1, 1, 1, 1, 1], [1, 'g', 0, 0, 1], [1, 1, 1, 0, 1], [1, 'r', 0, 0, 1], [1, 1, 1, 1, 1]], 'reward_type': 'sparse', 'continuing_task': True, 'reset_target': False}
additional_wrappers	()
vector_entry_point	None

Evaluation Environment Specs

This environment can be recovered from the Minari dataset as follows:

import minari

dataset = minari.load_dataset('D4RL/antmaze/umaze-v1')
eval_env  = dataset.recover_environment(eval_env=True)

ID	AntMaze_UMaze-v4
Observation Space	Dict('achieved_goal': Box(-inf, inf, (2,), float64), 'desired_goal': Box(-inf, inf, (2,), float64), 'observation': Box(-inf, inf, (27,), float64))
Action Space	Box(-1.0, 1.0, (8,), float32)
entry_point	gymnasium_robotics.envs.maze.ant_maze_v4:AntMazeEnv
max_episode_steps	700
reward_threshold	None
nondeterministic	False
order_enforce	True
disable_env_checker	False
kwargs	{'maze_map': [[1, 1, 1, 1, 1], [1, 'g', 0, 0, 1], [1, 1, 1, 0, 1], [1, 'r', 0, 0, 1], [1, 1, 1, 1, 1]], 'reward_type': 'sparse', 'continuing_task': True, 'reset_target': False}
additional_wrappers	()
vector_entry_point	None