Pith Number

pith:LLYFYPQ7

pith:2026:LLYFYPQ7KKAXCZ5CC5ET4AMJQ5

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Proximal Action Replacement for Behavior Cloning Actor-Critic in Offline Reinforcement Learning

Jianshu Zhang, Jinzong Dong, Nanyang Ye, Qinying Gu, Wei Huang, Xinzhe Yuan, Zhaohui Jiang, Zhuo Chen

Proximal action replacement overcomes the imitation ceiling in BC-regularized actor-critic by substituting suboptimal dataset actions with value-guided improvements.

arxiv:2602.07441 v2 · 2026-02-07 · cs.LG · cs.AI

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

Claims

C1strongest claim

PAR consistently improves performance across offline RL benchmarks and approaches state-of-the-art results simply by being combined with the basic TD3+BC.

C2weakest assumption

That actions generated by the stable target policy, guided by local ascent of the action-value function and bounded by value uncertainty, can be substituted without destabilizing training or introducing new bias when dataset actions are suboptimal.

C3one line summary

Proximal action replacement breaks the imitation ceiling in BC-regularized offline RL actor-critic by substituting suboptimal dataset actions with value-guided improvements from a stable target policy.

Formal links

2 machine-checked theorem links

Cited by

1 paper in Pith

Refining Compositional Diffusion for Reliable Long-Horizon Planning

Receipt and verification

First computed	2026-05-17T23:39:00.026294Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5af05c3e1f52817167a217493e018987643dfe7037bdd563807d036431926018

Aliases

arxiv: 2602.07441 · arxiv_version: 2602.07441v2 · doi: 10.48550/arxiv.2602.07441

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/LLYFYPQ7KKAXCZ5CC5ET4AMJQ5 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 5af05c3e1f52817167a217493e018987643dfe7037bdd563807d036431926018

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd379b69b869ef4149d7ec98a96f6edfb06f271348c99998106e1a120b549e75",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-02-07T08:44:27Z",
    "title_canon_sha256": "11ceda1decf65b89cb4513c31144ecd8ad1132fdbf83a6e4a8002b631649229e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.07441",
    "kind": "arxiv",
    "version": 2
  }
}