{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:NAPEPZ2RXH42ISKKO3W6K4ZYYZ","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":"aa3c38deb3d9bc60ee78d5c987d8e07ee5ef0340c45e2e4849a4975c56caf6c1","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.CO","submitted_at":"2025-09-01T03:31:09Z","title_canon_sha256":"b37ad0a68eb5864987e1032120b37b65232d520eb88fd8437b7de09442cf2d00"},"schema_version":"1.0","source":{"id":"2509.01091","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.01091","created_at":"2026-07-05T12:03:52Z"},{"alias_kind":"arxiv_version","alias_value":"2509.01091v2","created_at":"2026-07-05T12:03:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.01091","created_at":"2026-07-05T12:03:52Z"},{"alias_kind":"pith_short_12","alias_value":"NAPEPZ2RXH42","created_at":"2026-07-05T12:03:52Z"},{"alias_kind":"pith_short_16","alias_value":"NAPEPZ2RXH42ISKK","created_at":"2026-07-05T12:03:52Z"},{"alias_kind":"pith_short_8","alias_value":"NAPEPZ2R","created_at":"2026-07-05T12:03:52Z"}],"graph_snapshots":[{"event_id":"sha256:8545ab1b60134b9de20464d7868d3171a0fd9318fd9802186636cd04bd4bad2d","target":"graph","created_at":"2026-07-05T12:03:52Z","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/2509.01091/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Control variates have become an increasingly popular variance-reduction technique in Bayesian inference. Many broadly applicable control variates are based on the Langevin-Stein operator, which leverages gradient information from any gradient-based sampler to produce variance-reduced estimators of expectations. These control variates typically require optimising over a function $u(\\theta)$ within a user-defined functional class $G$, such as the space of $Q$th-order polynomials or a reproducing kernel Hilbert space. We propose using averaging-based ensemble learning to construct Stein-based con","authors_text":"Christopher Drovandi, Leah F. South, Long M. Nguyen","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.CO","submitted_at":"2025-09-01T03:31:09Z","title":"Ensemble Control Variates"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.01091","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":"sha256:0b2234793c718d48ee9adcadb578e3df35cf275a5571a8e7b4be78fd63574272","target":"record","created_at":"2026-07-05T12:03:52Z","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":"aa3c38deb3d9bc60ee78d5c987d8e07ee5ef0340c45e2e4849a4975c56caf6c1","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.CO","submitted_at":"2025-09-01T03:31:09Z","title_canon_sha256":"b37ad0a68eb5864987e1032120b37b65232d520eb88fd8437b7de09442cf2d00"},"schema_version":"1.0","source":{"id":"2509.01091","kind":"arxiv","version":2}},"canonical_sha256":"681e47e751b9f9a4494a76ede57338c6565c618536e0e3e19e83f69015fb1cc8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"681e47e751b9f9a4494a76ede57338c6565c618536e0e3e19e83f69015fb1cc8","first_computed_at":"2026-07-05T12:03:52.697752Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T12:03:52.697752Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"72/OjrBGlrIei4+QaFuzT4rdSn3IMRnub7zBbQjfV5VIuIq32doOOWM636SLl37quf1YovYBwwDCdUiaHlKkAA==","signature_status":"signed_v1","signed_at":"2026-07-05T12:03:52.698267Z","signed_message":"canonical_sha256_bytes"},"source_id":"2509.01091","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0b2234793c718d48ee9adcadb578e3df35cf275a5571a8e7b4be78fd63574272","sha256:8545ab1b60134b9de20464d7868d3171a0fd9318fd9802186636cd04bd4bad2d"],"state_sha256":"df4c51e8ace7bedab0a9298794d7d89c24a6802037dcba2bb0b495458d81311d"}