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Walker2d-v2: considers two objective functions: one is the forward speed (f1) while the other is the energy consumption (f2). The definitions of the state space and the action space of Walker2d-v2 are as follows:
The non-dominated policies obtained by different algorithms with different preferences are shown blow. We also demonstrate the video clips of the best policy found by PBMORL.
Non-dominated policies obtained by PBMORL versus PGMORL, RA with different preferences on each objective.
Non-dominated policies obtained by PBMORL versus MORL-Adaptation, META-MORL, MOMPO and MORAL (f1 is preferred).
Non-dominated policies obtained by PBMORL versus MORL-Adaptation, META-MORL, MOMPO and MORAL (f2 is preferred).
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