{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:VVHOQMSBTIH3LLCPJXYG6LQSWB","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":"0e380436a5e7fab6df46f2d4e805086fe0581d0f759e62e5d627c0f477e7745a","cross_cats_sorted":["cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.ML","submitted_at":"2025-05-06T14:46:16Z","title_canon_sha256":"2f7a5296f4867d2d8078cfd14c1e1fc97120ad21cea40037a7569005ce3ea99c"},"schema_version":"1.0","source":{"id":"2505.03585","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.03585","created_at":"2026-07-05T10:59:18Z"},{"alias_kind":"arxiv_version","alias_value":"2505.03585v1","created_at":"2026-07-05T10:59:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.03585","created_at":"2026-07-05T10:59:18Z"},{"alias_kind":"pith_short_12","alias_value":"VVHOQMSBTIH3","created_at":"2026-07-05T10:59:18Z"},{"alias_kind":"pith_short_16","alias_value":"VVHOQMSBTIH3LLCP","created_at":"2026-07-05T10:59:18Z"},{"alias_kind":"pith_short_8","alias_value":"VVHOQMSB","created_at":"2026-07-05T10:59:18Z"}],"graph_snapshots":[{"event_id":"sha256:e9a47c294916dff157e132a6fe2b85b72997f913f92c0595b05adc7610a1d78f","target":"graph","created_at":"2026-07-05T10:59:18Z","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/2505.03585/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Distributionally Robust Optimisation (DRO) protects risk-averse decision-makers by considering the worst-case risk within an ambiguity set of distributions based on the empirical distribution or a model. To further guard against finite, noisy data, model-based approaches admit Bayesian formulations that propagate uncertainty from the posterior to the decision-making problem. However, when the model is misspecified, the decision maker must stretch the ambiguity set to contain the data-generating process (DGP), leading to overly conservative decisions. We address this challenge by introducing DR","authors_text":"Charita Dellaporta, Patrick O'Hara, Theodoros Damoulas","cross_cats":["cs.LG"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.ML","submitted_at":"2025-05-06T14:46:16Z","title":"Decision Making under Model Misspecification: DRO with Robust Bayesian Ambiguity Sets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.03585","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":"sha256:54815d93078c12a1a0b192ad12a2b5376250120130daa030dfc27c5e0b301d6c","target":"record","created_at":"2026-07-05T10:59:18Z","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":"0e380436a5e7fab6df46f2d4e805086fe0581d0f759e62e5d627c0f477e7745a","cross_cats_sorted":["cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.ML","submitted_at":"2025-05-06T14:46:16Z","title_canon_sha256":"2f7a5296f4867d2d8078cfd14c1e1fc97120ad21cea40037a7569005ce3ea99c"},"schema_version":"1.0","source":{"id":"2505.03585","kind":"arxiv","version":1}},"canonical_sha256":"ad4ee832419a0fb5ac4f4df06f2e12b06fc613ba4ee6c2e9198ad1b6a1d1826c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ad4ee832419a0fb5ac4f4df06f2e12b06fc613ba4ee6c2e9198ad1b6a1d1826c","first_computed_at":"2026-07-05T10:59:18.895186Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:59:18.895186Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4UyhHG4wCt5S3Xhq9qpFshNbFbBgyENARwiKER7DtEWiXMwSCxN8V/WJTYtGcQ/X2pSzzrP2IGdZ9ZvCVGHUDw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:59:18.895689Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.03585","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:54815d93078c12a1a0b192ad12a2b5376250120130daa030dfc27c5e0b301d6c","sha256:e9a47c294916dff157e132a6fe2b85b72997f913f92c0595b05adc7610a1d78f"],"state_sha256":"20848654458b06cf0a22dd4ad92c66b6bad69c1df925607c1258cdd9bf150f02"}