{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:LBRMXARTQ5PGNTJW34JOA2LTE5","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":"f9ba1425e30ca50dcc4b521c0cd908d449d33b2889b5086002016a757cd4d494","cross_cats_sorted":["physics.data-an"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-12-06T14:46:53Z","title_canon_sha256":"49f2eba669dcfaa84becb2c67b8fdd23e911f18fcd8b4605201f250bf51d961f"},"schema_version":"1.0","source":{"id":"1912.04706","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1912.04706","created_at":"2026-07-05T00:25:20Z"},{"alias_kind":"arxiv_version","alias_value":"1912.04706v1","created_at":"2026-07-05T00:25:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1912.04706","created_at":"2026-07-05T00:25:20Z"},{"alias_kind":"pith_short_12","alias_value":"LBRMXARTQ5PG","created_at":"2026-07-05T00:25:20Z"},{"alias_kind":"pith_short_16","alias_value":"LBRMXARTQ5PGNTJW","created_at":"2026-07-05T00:25:20Z"},{"alias_kind":"pith_short_8","alias_value":"LBRMXART","created_at":"2026-07-05T00:25:20Z"}],"graph_snapshots":[{"event_id":"sha256:6cbcecd76ea0e358f130410fd7a0a2513617db066132f2c11718505defa7a829","target":"graph","created_at":"2026-07-05T00:25:20Z","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/1912.04706/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Predicting and simulating aerodynamic fields for civil aircraft over wide flight envelopes represent a real challenge mainly due to significant numerical costs and complex flows. Surrogate models and reduced-order models help to estimate aerodynamic fields from a few well-selected simulations. However, their accuracy dramatically decreases when different physical regimes are involved. Therefore, a method of local non-intrusive reduced-order models using machine learning, called Local Decomposition Method, has been developed to mitigate this issue. This paper introduces several enhancements to ","authors_text":"Jean-Christophe Jouhaud, Pierre Sagaut, Romain Dupuis","cross_cats":["physics.data-an"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-12-06T14:46:53Z","title":"Improved Surrogate Modeling using Machine Learning for Industrial Civil Aircraft Aerodynamics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1912.04706","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":"sha256:6fb96beb02d71327e2a86afe2b9e521cd65fcaed580737196ef57dfab153f8de","target":"record","created_at":"2026-07-05T00:25:20Z","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":"f9ba1425e30ca50dcc4b521c0cd908d449d33b2889b5086002016a757cd4d494","cross_cats_sorted":["physics.data-an"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-12-06T14:46:53Z","title_canon_sha256":"49f2eba669dcfaa84becb2c67b8fdd23e911f18fcd8b4605201f250bf51d961f"},"schema_version":"1.0","source":{"id":"1912.04706","kind":"arxiv","version":1}},"canonical_sha256":"5862cb8233875e66cd36df12e06973277d416115b6951916c0e37ccea486a083","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5862cb8233875e66cd36df12e06973277d416115b6951916c0e37ccea486a083","first_computed_at":"2026-07-05T00:25:20.713101Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:25:20.713101Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uU/1fTCfcAR/tOPZEyrlKhj2sfxerciYGoYWFQr71mvx5E7rVKzHf4b6UwmPOWHEMLWLv/pCol4o54BXG1nCCA==","signature_status":"signed_v1","signed_at":"2026-07-05T00:25:20.713510Z","signed_message":"canonical_sha256_bytes"},"source_id":"1912.04706","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6fb96beb02d71327e2a86afe2b9e521cd65fcaed580737196ef57dfab153f8de","sha256:6cbcecd76ea0e358f130410fd7a0a2513617db066132f2c11718505defa7a829"],"state_sha256":"656f5bfbd64244eefba6457990ac71b92ce1adc9dbaad13a2b514f8b103077a8"}