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[RLlib] CQL bug fix: Normalize actions for atanh in BC part of the CQL loss. #15814

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sven1977
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@sven1977 sven1977 commented May 14, 2021

CQL bug fix: Normalize actions for atanh in BC part of the CQL loss.

  • If the action bounds are not -1.0 to 1.0, the BC part of the loss will produce NaN values due to atanh returning inf for values outside [-1.0; 1.0].

Why are these changes needed?

Related issue number

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  • I've run scripts/format.sh to lint the changes in this PR.
  • I've included any doc changes needed for https://docs.ray.io/en/master/.
  • I've made sure the tests are passing. Note that there might be a few flaky tests, see the recent failures at https://flakey-tests.ray.io/
  • Testing Strategy
    • Unit tests
    • Release tests
    • This PR is not tested :(

…normalize_actions_for_atanh_in_bc_loss

# Conflicts:
#	rllib/agents/cql/tests/test_cql.py
…normalize_actions_for_atanh_in_bc_loss

# Conflicts:
#	rllib/agents/cql/tests/test_cql.py
@sven1977 sven1977 merged commit 469f522 into ray-project:master May 16, 2021
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