{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:XQMZ2XJZBU7CTUBY2YSA25UM2H","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"453c1546a8a2920109a542ad674be591b4c5f592f8e5fda152b3781e452186e4","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2021-06-11T22:41:53Z","title_canon_sha256":"ae9dc094ff4f2cfb3ebd3ec5948ed1ea535e863375da5a29b0969494baf6a0bc"},"schema_version":"1.0","source":{"id":"2106.06630","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.06630","created_at":"2026-07-05T02:48:39Z"},{"alias_kind":"arxiv_version","alias_value":"2106.06630v1","created_at":"2026-07-05T02:48:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.06630","created_at":"2026-07-05T02:48:39Z"},{"alias_kind":"pith_short_12","alias_value":"XQMZ2XJZBU7C","created_at":"2026-07-05T02:48:39Z"},{"alias_kind":"pith_short_16","alias_value":"XQMZ2XJZBU7CTUBY","created_at":"2026-07-05T02:48:39Z"},{"alias_kind":"pith_short_8","alias_value":"XQMZ2XJZ","created_at":"2026-07-05T02:48:39Z"}],"graph_snapshots":[{"event_id":"sha256:e7930d8f61e9c1518ea4ed1b02f17df2c9a88d9abc7f8320b62e58c63413e0b5","target":"graph","created_at":"2026-07-05T02:48:39Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2106.06630/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study the adversarial robustness in offline reinforcement learning. Given a batch dataset consisting of tuples $(s, a, r, s')$, an adversary is allowed to arbitrarily modify $\\epsilon$ fraction of the tuples. From the corrupted dataset the learner aims to robustly identify a near-optimal policy. We first show that a worst-case $\\Omega(d\\epsilon)$ optimality gap is unavoidable in linear MDP of dimension $d$, even if the adversary only corrupts the reward element in a tuple. This contrasts with dimension-free results in robust supervised learning and best-known lower-bound in the online RL se","authors_text":"Jerry Zhu, Wen Sun, Xuezhou Zhang, Yiding Chen","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2021-06-11T22:41:53Z","title":"Corruption-Robust Offline Reinforcement Learning"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.06630","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:1cafdc7fd9fd7a4032b3fed1ff0991ff9ec48c765cdf4fa2ca206648db01a7fe","target":"record","created_at":"2026-07-05T02:48:39Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"453c1546a8a2920109a542ad674be591b4c5f592f8e5fda152b3781e452186e4","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2021-06-11T22:41:53Z","title_canon_sha256":"ae9dc094ff4f2cfb3ebd3ec5948ed1ea535e863375da5a29b0969494baf6a0bc"},"schema_version":"1.0","source":{"id":"2106.06630","kind":"arxiv","version":1}},"canonical_sha256":"bc199d5d390d3e29d038d6240d768cd1fe589fe7081ce7c2ae656244ec46d03f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bc199d5d390d3e29d038d6240d768cd1fe589fe7081ce7c2ae656244ec46d03f","first_computed_at":"2026-07-05T02:48:39.754120Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:48:39.754120Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AA2jBRK55xGNgcWGC9z/tfKKWLMmxrOIvYvie8BJZDO9ypbGzETey/VMj0333N6ix6W1mp+1wDknPkD2J8SrAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:48:39.754597Z","signed_message":"canonical_sha256_bytes"},"source_id":"2106.06630","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1cafdc7fd9fd7a4032b3fed1ff0991ff9ec48c765cdf4fa2ca206648db01a7fe","sha256:e7930d8f61e9c1518ea4ed1b02f17df2c9a88d9abc7f8320b62e58c63413e0b5"],"state_sha256":"4cd3149caf00dd8d27baeb18b7324dd14897053c4e4d30f0eb21288239e5e818"}