{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:NSBTRU4Z2SQNWWPLN6M2D6XIZG","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":"3c05ea6c754360bea560ec0310d9c262bd6ee1ba061560e6102e01646cb9bf73","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2021-10-04T14:01:32Z","title_canon_sha256":"9efb4b9da488b6b4b6e63e59e9f2fc0be8dcb4a2725d26fec64b9cc6d03a061a"},"schema_version":"1.0","source":{"id":"2110.01463","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2110.01463","created_at":"2026-07-05T03:19:56Z"},{"alias_kind":"arxiv_version","alias_value":"2110.01463v1","created_at":"2026-07-05T03:19:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2110.01463","created_at":"2026-07-05T03:19:56Z"},{"alias_kind":"pith_short_12","alias_value":"NSBTRU4Z2SQN","created_at":"2026-07-05T03:19:56Z"},{"alias_kind":"pith_short_16","alias_value":"NSBTRU4Z2SQNWWPL","created_at":"2026-07-05T03:19:56Z"},{"alias_kind":"pith_short_8","alias_value":"NSBTRU4Z","created_at":"2026-07-05T03:19:56Z"}],"graph_snapshots":[{"event_id":"sha256:2846b9cdebd3a7c42d5d54b804e4d9b757b46eefee733caf7a38bf205852b8e9","target":"graph","created_at":"2026-07-05T03:19:56Z","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/2110.01463/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Linear contextual bandit is a popular online learning problem. It has been mostly studied in centralized learning settings. With the surging demand of large-scale decentralized model learning, e.g., federated learning, how to retain regret minimization while reducing communication cost becomes an open challenge. In this paper, we study linear contextual bandit in a federated learning setting. We propose a general framework with asynchronous model update and communication for a collection of homogeneous clients and heterogeneous clients, respectively. Rigorous theoretical analysis is provided a","authors_text":"Chuanhao Li, Hongning Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2021-10-04T14:01:32Z","title":"Asynchronous Upper Confidence Bound Algorithms for Federated Linear Bandits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2110.01463","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:ad29cf2f7c9a75ca9e48a14b3bf86d637e12c4e761e1afec70546e896701abb6","target":"record","created_at":"2026-07-05T03:19:56Z","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":"3c05ea6c754360bea560ec0310d9c262bd6ee1ba061560e6102e01646cb9bf73","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2021-10-04T14:01:32Z","title_canon_sha256":"9efb4b9da488b6b4b6e63e59e9f2fc0be8dcb4a2725d26fec64b9cc6d03a061a"},"schema_version":"1.0","source":{"id":"2110.01463","kind":"arxiv","version":1}},"canonical_sha256":"6c8338d399d4a0db59eb6f99a1fae8c9b78ca55e8ccb5bccbe497d0e515429c7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6c8338d399d4a0db59eb6f99a1fae8c9b78ca55e8ccb5bccbe497d0e515429c7","first_computed_at":"2026-07-05T03:19:56.034757Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:19:56.034757Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"t4cDXv6z+2V7W1VfDCg4h0iD3VPFQvxkmLFjyFrA4t2JSKp0jgFFW3RvubwdUvOXc6ExqsYXE7jj71qvMuo3CQ==","signature_status":"signed_v1","signed_at":"2026-07-05T03:19:56.035133Z","signed_message":"canonical_sha256_bytes"},"source_id":"2110.01463","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ad29cf2f7c9a75ca9e48a14b3bf86d637e12c4e761e1afec70546e896701abb6","sha256:2846b9cdebd3a7c42d5d54b804e4d9b757b46eefee733caf7a38bf205852b8e9"],"state_sha256":"06e1240375c76c0b12274e021642f0ee5f1da90a03d0e3a40a7bdda27ba14212"}