{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:PN42TRUCPLLYHUK6KTUPHKUU4C","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":"607abda45fc84398dbbbb1164caef13976a1bf213cafb9d159be055311f16e56","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2021-11-29T14:30:26Z","title_canon_sha256":"0d0c0a44304c8f91c16a60bd7a5805ff65b62a0424529cc1661e2428610c3d8e"},"schema_version":"1.0","source":{"id":"2111.14552","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2111.14552","created_at":"2026-07-05T05:05:01Z"},{"alias_kind":"arxiv_version","alias_value":"2111.14552v2","created_at":"2026-07-05T05:05:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2111.14552","created_at":"2026-07-05T05:05:01Z"},{"alias_kind":"pith_short_12","alias_value":"PN42TRUCPLLY","created_at":"2026-07-05T05:05:01Z"},{"alias_kind":"pith_short_16","alias_value":"PN42TRUCPLLYHUK6","created_at":"2026-07-05T05:05:01Z"},{"alias_kind":"pith_short_8","alias_value":"PN42TRUC","created_at":"2026-07-05T05:05:01Z"}],"graph_snapshots":[{"event_id":"sha256:f6dc7a0086347673b883130b5773f9ebbe5b3c55cfe744364261bdd7c10177d9","target":"graph","created_at":"2026-07-05T05:05:01Z","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/2111.14552/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Reinforcement learning (RL) algorithms are often categorized as either on-policy or off-policy depending on whether they use data from a target policy of interest or from a different behavior policy. In this paper, we study a subtle distinction between on-policy data and on-policy sampling in the context of the RL sub-problem of policy evaluation. We observe that on-policy sampling may fail to match the expected distribution of on-policy data after observing only a finite number of trajectories and this failure hinders data-efficient policy evaluation. Towards improved data-efficiency, we show","authors_text":"Duohan Zhang, Josiah P. Hanna, Lukas Sch\\\"afer, Rujie Zhong, Stefano V. Albrecht","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2021-11-29T14:30:26Z","title":"Robust On-Policy Sampling for Data-Efficient Policy Evaluation in Reinforcement Learning"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2111.14552","kind":"arxiv","version":2},"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":"sha256:706158e4ec88235ce0aecf8d090c71e63d12ed1b314921f78304db8180d60f1b","target":"record","created_at":"2026-07-05T05:05:01Z","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":"607abda45fc84398dbbbb1164caef13976a1bf213cafb9d159be055311f16e56","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2021-11-29T14:30:26Z","title_canon_sha256":"0d0c0a44304c8f91c16a60bd7a5805ff65b62a0424529cc1661e2428610c3d8e"},"schema_version":"1.0","source":{"id":"2111.14552","kind":"arxiv","version":2}},"canonical_sha256":"7b79a9c6827ad783d15e54e8f3aa94e0a06f8272d14d4f71d7eed784417503a2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7b79a9c6827ad783d15e54e8f3aa94e0a06f8272d14d4f71d7eed784417503a2","first_computed_at":"2026-07-05T05:05:01.878612Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:05:01.878612Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vG2B6fzkzfaDoKARNGHJrNZcA7sYRbu7VTqOWv/JYC+OGYnwuWtxv4l5n/NCwAZin3MkuRt96Sy/nHzBmQZ5Dg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:05:01.879116Z","signed_message":"canonical_sha256_bytes"},"source_id":"2111.14552","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:706158e4ec88235ce0aecf8d090c71e63d12ed1b314921f78304db8180d60f1b","sha256:f6dc7a0086347673b883130b5773f9ebbe5b3c55cfe744364261bdd7c10177d9"],"state_sha256":"4b44d5ebda46e848808cf6f2fa3930a3aa6d446a4a618fa01db417e919bddbcc"}