{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:VC2CCRYBYFU6O3JK4PMB3EHVRS","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":"8f0831e7f98e3f85eb433fb2d66c640481529956a5ee4ccfcd9fc47824a59b69","cross_cats_sorted":["cs.LG","math.OC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ML","submitted_at":"2019-02-24T19:57:48Z","title_canon_sha256":"22f4c25ff5b7b0f29d84f043d04c88b7c3c5f12e1b5ebf38dcd3ea09f28b7c32"},"schema_version":"1.0","source":{"id":"1902.09003","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.09003","created_at":"2026-05-17T23:52:46Z"},{"alias_kind":"arxiv_version","alias_value":"1902.09003v1","created_at":"2026-05-17T23:52:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.09003","created_at":"2026-05-17T23:52:46Z"},{"alias_kind":"pith_short_12","alias_value":"VC2CCRYBYFU6","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"VC2CCRYBYFU6O3JK","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"VC2CCRYB","created_at":"2026-05-18T12:33:30Z"}],"graph_snapshots":[{"event_id":"sha256:34356cf29f2c742a7260cc76c5ea1de99d10c13321d9662085e4d48d40da086d","target":"graph","created_at":"2026-05-17T23:52:46Z","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"},"paper":{"abstract_excerpt":"We show how to take any two parameter-free online learning algorithms with different regret guarantees and obtain a single algorithm whose regret is the minimum of the two base algorithms. Our method is embarrassingly simple: just add the iterates. This trick can generate efficient algorithms that adapt to many norms simultaneously, as well as providing diagonal-style algorithms that still maintain dimension-free guarantees. We then proceed to show how a variant on this idea yields a black-box procedure for generating optimistic online learning algorithms. This yields the first optimistic regr","authors_text":"Ashok Cutkosky","cross_cats":["cs.LG","math.OC"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ML","submitted_at":"2019-02-24T19:57:48Z","title":"Combining Online Learning Guarantees"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.09003","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":"sha256:01aec24d6d9c196b4d6483b6d979b01d67b4c74ea8271432a505ab70baa8b05e","target":"record","created_at":"2026-05-17T23:52:46Z","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":"8f0831e7f98e3f85eb433fb2d66c640481529956a5ee4ccfcd9fc47824a59b69","cross_cats_sorted":["cs.LG","math.OC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ML","submitted_at":"2019-02-24T19:57:48Z","title_canon_sha256":"22f4c25ff5b7b0f29d84f043d04c88b7c3c5f12e1b5ebf38dcd3ea09f28b7c32"},"schema_version":"1.0","source":{"id":"1902.09003","kind":"arxiv","version":1}},"canonical_sha256":"a8b4214701c169e76d2ae3d81d90f58cab6062a77c80cbeb9cbf0d14b7be3375","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a8b4214701c169e76d2ae3d81d90f58cab6062a77c80cbeb9cbf0d14b7be3375","first_computed_at":"2026-05-17T23:52:46.938840Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:52:46.938840Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0rCYAlaXQ2kL+y5tqsLCp/FqOBgc5S5nS7T/0ac63n6yn1taMX7FSRWg+3uFz942KM5shzv9PHHcyX6yAKvJCQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:52:46.939517Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.09003","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:01aec24d6d9c196b4d6483b6d979b01d67b4c74ea8271432a505ab70baa8b05e","sha256:34356cf29f2c742a7260cc76c5ea1de99d10c13321d9662085e4d48d40da086d"],"state_sha256":"c975c0c76eb241497940d613850a4a73adde63752fa31181806094bb91d0d892"}