{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:ITCUANK4RBU6XBVKMEUQFT3EZV","short_pith_number":"pith:ITCUANK4","canonical_record":{"source":{"id":"2205.07704","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.ML","submitted_at":"2022-05-16T14:13:06Z","cross_cats_sorted":["cs.LG"],"title_canon_sha256":"90f1faa9e014936cf1c09c904883d866145db4b601352e198b0d0703569ff8f8","abstract_canon_sha256":"657e7d7aea8e8a96bf99e45a552bac7dd343a92c266ddea3fcca6b1e3ea1c739"},"schema_version":"1.0"},"canonical_sha256":"44c540355c8869eb86aa612902cf64cd629c7cc521c2aec8365152760f370bcc","source":{"kind":"arxiv","id":"2205.07704","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2205.07704","created_at":"2026-07-05T04:33:53Z"},{"alias_kind":"arxiv_version","alias_value":"2205.07704v2","created_at":"2026-07-05T04:33:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2205.07704","created_at":"2026-07-05T04:33:53Z"},{"alias_kind":"pith_short_12","alias_value":"ITCUANK4RBU6","created_at":"2026-07-05T04:33:53Z"},{"alias_kind":"pith_short_16","alias_value":"ITCUANK4RBU6XBVK","created_at":"2026-07-05T04:33:53Z"},{"alias_kind":"pith_short_8","alias_value":"ITCUANK4","created_at":"2026-07-05T04:33:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:ITCUANK4RBU6XBVKMEUQFT3EZV","target":"record","payload":{"canonical_record":{"source":{"id":"2205.07704","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.ML","submitted_at":"2022-05-16T14:13:06Z","cross_cats_sorted":["cs.LG"],"title_canon_sha256":"90f1faa9e014936cf1c09c904883d866145db4b601352e198b0d0703569ff8f8","abstract_canon_sha256":"657e7d7aea8e8a96bf99e45a552bac7dd343a92c266ddea3fcca6b1e3ea1c739"},"schema_version":"1.0"},"canonical_sha256":"44c540355c8869eb86aa612902cf64cd629c7cc521c2aec8365152760f370bcc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:33:53.163796Z","signature_b64":"IVpk3B5M9mTY170KrqHihY/s+4vDpSoWaDQlv524frv0kpfRsqqmgR/NTlwRvfb4T4qXMBVcavI35TSTE1y2Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"44c540355c8869eb86aa612902cf64cd629c7cc521c2aec8365152760f370bcc","last_reissued_at":"2026-07-05T04:33:53.163394Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:33:53.163394Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2205.07704","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T04:33:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bM9ISCVX3lWEf0IA+xLsoalEuw3hHpafWKBhlP2V1j2Fa3nfiPZB8oju2GDFll/Uh+rrqQoln3L/0AAIZ+98Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T02:30:33.411091Z"},"content_sha256":"de74df69b4abdaf5aad4f360d1d54fea7cf6ff870a91ce7caa1c5cad719b02d9","schema_version":"1.0","event_id":"sha256:de74df69b4abdaf5aad4f360d1d54fea7cf6ff870a91ce7caa1c5cad719b02d9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:ITCUANK4RBU6XBVKMEUQFT3EZV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"From Dirichlet to Rubin: Optimistic Exploration in RL without Bonuses","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.LG"],"primary_cat":"stat.ML","authors_text":"Alexey Naumov, Daniil Tiapkin, Denis Belomestny, Eric Moulines, Michal Valko, Pierre Menard, Sergey Samsonov, Yunhao Tang","submitted_at":"2022-05-16T14:13:06Z","abstract_excerpt":"We propose the Bayes-UCBVI algorithm for reinforcement learning in tabular, stage-dependent, episodic Markov decision process: a natural extension of the Bayes-UCB algorithm by Kaufmann et al. (2012) for multi-armed bandits. Our method uses the quantile of a Q-value function posterior as upper confidence bound on the optimal Q-value function. For Bayes-UCBVI, we prove a regret bound of order $\\widetilde{O}(\\sqrt{H^3SAT})$ where $H$ is the length of one episode, $S$ is the number of states, $A$ the number of actions, $T$ the number of episodes, that matches the lower-bound of $\\Omega(\\sqrt{H^3S"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2205.07704","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2205.07704/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T04:33:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W+3EXkxTcjX9u7PL/FKDVeeMZ6Zw4TFbKt1QHTo8pc7hO1jpTbiX4ICOouxf2Beubg9ypy/68Ghe61RxCBFkBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T02:30:33.411476Z"},"content_sha256":"4fb6342888381ccf48d17785280d1c34ca973fb20d02f42e2d091c35844cff5e","schema_version":"1.0","event_id":"sha256:4fb6342888381ccf48d17785280d1c34ca973fb20d02f42e2d091c35844cff5e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ITCUANK4RBU6XBVKMEUQFT3EZV/bundle.json","state_url":"https://pith.science/pith/ITCUANK4RBU6XBVKMEUQFT3EZV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ITCUANK4RBU6XBVKMEUQFT3EZV/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-14T02:30:33Z","links":{"resolver":"https://pith.science/pith/ITCUANK4RBU6XBVKMEUQFT3EZV","bundle":"https://pith.science/pith/ITCUANK4RBU6XBVKMEUQFT3EZV/bundle.json","state":"https://pith.science/pith/ITCUANK4RBU6XBVKMEUQFT3EZV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ITCUANK4RBU6XBVKMEUQFT3EZV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:ITCUANK4RBU6XBVKMEUQFT3EZV","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":"657e7d7aea8e8a96bf99e45a552bac7dd343a92c266ddea3fcca6b1e3ea1c739","cross_cats_sorted":["cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.ML","submitted_at":"2022-05-16T14:13:06Z","title_canon_sha256":"90f1faa9e014936cf1c09c904883d866145db4b601352e198b0d0703569ff8f8"},"schema_version":"1.0","source":{"id":"2205.07704","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2205.07704","created_at":"2026-07-05T04:33:53Z"},{"alias_kind":"arxiv_version","alias_value":"2205.07704v2","created_at":"2026-07-05T04:33:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2205.07704","created_at":"2026-07-05T04:33:53Z"},{"alias_kind":"pith_short_12","alias_value":"ITCUANK4RBU6","created_at":"2026-07-05T04:33:53Z"},{"alias_kind":"pith_short_16","alias_value":"ITCUANK4RBU6XBVK","created_at":"2026-07-05T04:33:53Z"},{"alias_kind":"pith_short_8","alias_value":"ITCUANK4","created_at":"2026-07-05T04:33:53Z"}],"graph_snapshots":[{"event_id":"sha256:4fb6342888381ccf48d17785280d1c34ca973fb20d02f42e2d091c35844cff5e","target":"graph","created_at":"2026-07-05T04:33:53Z","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/2205.07704/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We propose the Bayes-UCBVI algorithm for reinforcement learning in tabular, stage-dependent, episodic Markov decision process: a natural extension of the Bayes-UCB algorithm by Kaufmann et al. (2012) for multi-armed bandits. Our method uses the quantile of a Q-value function posterior as upper confidence bound on the optimal Q-value function. For Bayes-UCBVI, we prove a regret bound of order $\\widetilde{O}(\\sqrt{H^3SAT})$ where $H$ is the length of one episode, $S$ is the number of states, $A$ the number of actions, $T$ the number of episodes, that matches the lower-bound of $\\Omega(\\sqrt{H^3S","authors_text":"Alexey Naumov, Daniil Tiapkin, Denis Belomestny, Eric Moulines, Michal Valko, Pierre Menard, Sergey Samsonov, Yunhao Tang","cross_cats":["cs.LG"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.ML","submitted_at":"2022-05-16T14:13:06Z","title":"From Dirichlet to Rubin: Optimistic Exploration in RL without Bonuses"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2205.07704","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:de74df69b4abdaf5aad4f360d1d54fea7cf6ff870a91ce7caa1c5cad719b02d9","target":"record","created_at":"2026-07-05T04:33:53Z","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":"657e7d7aea8e8a96bf99e45a552bac7dd343a92c266ddea3fcca6b1e3ea1c739","cross_cats_sorted":["cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.ML","submitted_at":"2022-05-16T14:13:06Z","title_canon_sha256":"90f1faa9e014936cf1c09c904883d866145db4b601352e198b0d0703569ff8f8"},"schema_version":"1.0","source":{"id":"2205.07704","kind":"arxiv","version":2}},"canonical_sha256":"44c540355c8869eb86aa612902cf64cd629c7cc521c2aec8365152760f370bcc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"44c540355c8869eb86aa612902cf64cd629c7cc521c2aec8365152760f370bcc","first_computed_at":"2026-07-05T04:33:53.163394Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:33:53.163394Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IVpk3B5M9mTY170KrqHihY/s+4vDpSoWaDQlv524frv0kpfRsqqmgR/NTlwRvfb4T4qXMBVcavI35TSTE1y2Bw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:33:53.163796Z","signed_message":"canonical_sha256_bytes"},"source_id":"2205.07704","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:de74df69b4abdaf5aad4f360d1d54fea7cf6ff870a91ce7caa1c5cad719b02d9","sha256:4fb6342888381ccf48d17785280d1c34ca973fb20d02f42e2d091c35844cff5e"],"state_sha256":"7046ee859150ca9dedc5648a70c7e8d251b78a6c5b1ce1cc70ce420e62b89382"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"02QWcOXi6BkZT5k0gIfnj81KivDoSPuQLO4rwEN20qwGc3qfXjv1vgEF0M56U1Lr5H8AgdhQCXobKttHr5YyBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T02:30:33.414280Z","bundle_sha256":"fa00073c956321453ea8b0713af31a301db4e8327fd252414ac543fc7698d9a4"}}