{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:MEH44D2XAILOXVCRMMJUJDAIDD","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":"4b78cd9bb37d24d2a6b89cf231d04c7f75f6361812d81c4f2b4604b8520e03c0","cross_cats_sorted":["cs.LG","math.ST","stat.TH"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.ML","submitted_at":"2024-07-11T16:37:15Z","title_canon_sha256":"219a0dfa36c416ee0810847b4650a58743fde7d4b907740515f11d4a01e57564"},"schema_version":"1.0","source":{"id":"2407.08654","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.08654","created_at":"2026-07-05T10:20:13Z"},{"alias_kind":"arxiv_version","alias_value":"2407.08654v2","created_at":"2026-07-05T10:20:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.08654","created_at":"2026-07-05T10:20:13Z"},{"alias_kind":"pith_short_12","alias_value":"MEH44D2XAILO","created_at":"2026-07-05T10:20:13Z"},{"alias_kind":"pith_short_16","alias_value":"MEH44D2XAILOXVCR","created_at":"2026-07-05T10:20:13Z"},{"alias_kind":"pith_short_8","alias_value":"MEH44D2X","created_at":"2026-07-05T10:20:13Z"}],"graph_snapshots":[{"event_id":"sha256:6a75d2cd6b745d7007b30416500f7db2605ff67ccc8714f464682edc8fcb73e8","target":"graph","created_at":"2026-07-05T10:20:13Z","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/2407.08654/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study a $K$-armed non-stationary bandit model where rewards change smoothly, as captured by H\\\"{o}lder class assumptions on rewards as functions of time. Such smooth changes are parametrized by a H\\\"{o}lder exponent $\\beta$ and coefficient $\\lambda$. While various sub-cases of this general model have been studied in isolation, we first establish the minimax dynamic regret rate generally for all $K,\\beta,\\lambda$. Next, we show this optimal dynamic regret can be attained adaptively, without knowledge of $\\beta,\\lambda$. To contrast, even with parameter knowledge, upper bounds were only previ","authors_text":"Joe Suk","cross_cats":["cs.LG","math.ST","stat.TH"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.ML","submitted_at":"2024-07-11T16:37:15Z","title":"Adaptive Smooth Non-Stationary Bandits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.08654","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":"sha256:87aa6f9c6eb9fd02f86a73736a5eb446be16cdf06d8f6789486dc3cfd53e6ce7","target":"record","created_at":"2026-07-05T10:20:13Z","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":"4b78cd9bb37d24d2a6b89cf231d04c7f75f6361812d81c4f2b4604b8520e03c0","cross_cats_sorted":["cs.LG","math.ST","stat.TH"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.ML","submitted_at":"2024-07-11T16:37:15Z","title_canon_sha256":"219a0dfa36c416ee0810847b4650a58743fde7d4b907740515f11d4a01e57564"},"schema_version":"1.0","source":{"id":"2407.08654","kind":"arxiv","version":2}},"canonical_sha256":"610fce0f570216ebd4516313448c0818c512139c403c93da7518c81f6a344b9a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"610fce0f570216ebd4516313448c0818c512139c403c93da7518c81f6a344b9a","first_computed_at":"2026-07-05T10:20:13.637403Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:20:13.637403Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MGoJU++PM7ALh4EZsW2/Z4BrHaG5EY+S9ONwQbGZg84YdjeFiqMIDoXGSdPN/ubBJMPw16QPr+SB1HxKi/V3Bg==","signature_status":"signed_v1","signed_at":"2026-07-05T10:20:13.638090Z","signed_message":"canonical_sha256_bytes"},"source_id":"2407.08654","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:87aa6f9c6eb9fd02f86a73736a5eb446be16cdf06d8f6789486dc3cfd53e6ce7","sha256:6a75d2cd6b745d7007b30416500f7db2605ff67ccc8714f464682edc8fcb73e8"],"state_sha256":"adccc75b6b296e743303eadb1818e9347344009e5fcb8e0d51ebaee20b975f6f"}