{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:OMYSCLOCFRK7DBOC26TQQU25O6","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":"34444f1bfcebd905b7f1e25a756a10ff8e03f22232ee308813a0e48f54bc9ce2","cross_cats_sorted":["stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2019-04-12T16:32:17Z","title_canon_sha256":"ee59bc900046044202a9a271b241c888878b66b61264a9ce0d9f53c34e684f9b"},"schema_version":"1.0","source":{"id":"1904.06309","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.06309","created_at":"2026-05-17T23:44:47Z"},{"alias_kind":"arxiv_version","alias_value":"1904.06309v2","created_at":"2026-05-17T23:44:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.06309","created_at":"2026-05-17T23:44:47Z"},{"alias_kind":"pith_short_12","alias_value":"OMYSCLOCFRK7","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_16","alias_value":"OMYSCLOCFRK7DBOC","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_8","alias_value":"OMYSCLOC","created_at":"2026-05-18T12:33:24Z"}],"graph_snapshots":[{"event_id":"sha256:51f1077e64a2932393427fa24bcab531331f6aa596dfe1d4f709cd18552c905e","target":"graph","created_at":"2026-05-17T23:44:47Z","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 study the problem of regret minimization for distributed bandits learning, in which $M$ agents work collaboratively to minimize their total regret under the coordination of a central server. Our goal is to design communication protocols with near-optimal regret and little communication cost, which is measured by the total amount of transmitted data. For distributed multi-armed bandits, we propose a protocol with near-optimal regret and only $O(M\\log(MK))$ communication cost, where $K$ is the number of arms. The communication cost is independent of the time horizon $T$, has only logarithmic ","authors_text":"Jiachen Hu, Liwei Wang, Xiaoyu Chen, Yuanhao Wang","cross_cats":["stat.ML"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2019-04-12T16:32:17Z","title":"Distributed Bandit Learning: Near-Optimal Regret with Efficient Communication"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.06309","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":"sha256:8b1d6f062a5f9ebefd82e2ca109a5e5ab7277ed6e5a31311147caa4e0c1bb57a","target":"record","created_at":"2026-05-17T23:44:47Z","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":"34444f1bfcebd905b7f1e25a756a10ff8e03f22232ee308813a0e48f54bc9ce2","cross_cats_sorted":["stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2019-04-12T16:32:17Z","title_canon_sha256":"ee59bc900046044202a9a271b241c888878b66b61264a9ce0d9f53c34e684f9b"},"schema_version":"1.0","source":{"id":"1904.06309","kind":"arxiv","version":2}},"canonical_sha256":"7331212dc22c55f185c2d7a708535d779cdb9fdaaae12ac04247843257a9276e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7331212dc22c55f185c2d7a708535d779cdb9fdaaae12ac04247843257a9276e","first_computed_at":"2026-05-17T23:44:47.295786Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:44:47.295786Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YOxJ6PdLjB+m2bl4syRgBdik27ji7SJVIcgw00073HLBXQCtCel6ai4g/Ck3Joy7w41sjxk0qIO05cL5yvb9Cw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:44:47.296457Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.06309","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8b1d6f062a5f9ebefd82e2ca109a5e5ab7277ed6e5a31311147caa4e0c1bb57a","sha256:51f1077e64a2932393427fa24bcab531331f6aa596dfe1d4f709cd18552c905e"],"state_sha256":"650966657e4f66c60cc4da2d499323211d63f15ded17ec600e28d3b7c800d057"}