{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2023:5HGI4QOA4GQLHRWBWKCFQZ2FNF","short_pith_number":"pith:5HGI4QOA","schema_version":"1.0","canonical_sha256":"e9cc8e41c0e1a0b3c6c1b284586745696e3e2c3c556e4bfa2c503da89710d8d8","source":{"kind":"arxiv","id":"2304.14884","version":2},"attestation_state":"computed","paper":{"title":"A registration method for reduced basis problems using linear optimal transport","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":["cs.NA"],"primary_cat":"math.NA","authors_text":"Tobias Blickhan","submitted_at":"2023-04-28T14:46:05Z","abstract_excerpt":"We present a registration method for model reduction of parametric partial differential equations with dominating advection effects and moving features. Registration refers to the use of a parameter-dependent mapping to make the set of solutions to these equations more amicable for approximation using classical reduced basis methods. The proposed approach utilizes concepts from optimal transport theory, as we utilize Monge embeddings to construct these mappings in a purely data-driven way. The method relies on one interpretable hyper-parameter. We discuss how our approach relates to existing w"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2304.14884","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"math.NA","submitted_at":"2023-04-28T14:46:05Z","cross_cats_sorted":["cs.NA"],"title_canon_sha256":"e62f92a82f6bf3d48855169bf6b393425792a044b62cc6201843ecc98d710b09","abstract_canon_sha256":"b8dfa8d9a2a3596cdfc9c48ecd214ea23c5601be6f6e648d2703be0b5b681352"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:54:54.122552Z","signature_b64":"pn0RNK/H4Iu7o5g+h8zpIqgwuGQUWuPr3aiblRdJ+hFr1ZZsUF5kvYH+eGxF1Fe8KJPV/qTtS5VkaE+rDhkTBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e9cc8e41c0e1a0b3c6c1b284586745696e3e2c3c556e4bfa2c503da89710d8d8","last_reissued_at":"2026-07-05T06:54:54.122098Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:54:54.122098Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A registration method for reduced basis problems using linear optimal transport","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":["cs.NA"],"primary_cat":"math.NA","authors_text":"Tobias Blickhan","submitted_at":"2023-04-28T14:46:05Z","abstract_excerpt":"We present a registration method for model reduction of parametric partial differential equations with dominating advection effects and moving features. Registration refers to the use of a parameter-dependent mapping to make the set of solutions to these equations more amicable for approximation using classical reduced basis methods. The proposed approach utilizes concepts from optimal transport theory, as we utilize Monge embeddings to construct these mappings in a purely data-driven way. The method relies on one interpretable hyper-parameter. We discuss how our approach relates to existing w"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.14884","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2304.14884/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2304.14884","created_at":"2026-07-05T06:54:54.122153+00:00"},{"alias_kind":"arxiv_version","alias_value":"2304.14884v2","created_at":"2026-07-05T06:54:54.122153+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.14884","created_at":"2026-07-05T06:54:54.122153+00:00"},{"alias_kind":"pith_short_12","alias_value":"5HGI4QOA4GQL","created_at":"2026-07-05T06:54:54.122153+00:00"},{"alias_kind":"pith_short_16","alias_value":"5HGI4QOA4GQLHRWB","created_at":"2026-07-05T06:54:54.122153+00:00"},{"alias_kind":"pith_short_8","alias_value":"5HGI4QOA","created_at":"2026-07-05T06:54:54.122153+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2411.08750","citing_title":"Optimal Transport-Based Displacement Interpolation with Data Augmentation for Reduced Order Modeling of Nonlinear Dynamical Systems","ref_index":35,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/5HGI4QOA4GQLHRWBWKCFQZ2FNF","json":"https://pith.science/pith/5HGI4QOA4GQLHRWBWKCFQZ2FNF.json","graph_json":"https://pith.science/api/pith-number/5HGI4QOA4GQLHRWBWKCFQZ2FNF/graph.json","events_json":"https://pith.science/api/pith-number/5HGI4QOA4GQLHRWBWKCFQZ2FNF/events.json","paper":"https://pith.science/paper/5HGI4QOA"},"agent_actions":{"view_html":"https://pith.science/pith/5HGI4QOA4GQLHRWBWKCFQZ2FNF","download_json":"https://pith.science/pith/5HGI4QOA4GQLHRWBWKCFQZ2FNF.json","view_paper":"https://pith.science/paper/5HGI4QOA","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2304.14884&json=true","fetch_graph":"https://pith.science/api/pith-number/5HGI4QOA4GQLHRWBWKCFQZ2FNF/graph.json","fetch_events":"https://pith.science/api/pith-number/5HGI4QOA4GQLHRWBWKCFQZ2FNF/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5HGI4QOA4GQLHRWBWKCFQZ2FNF/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5HGI4QOA4GQLHRWBWKCFQZ2FNF/action/storage_attestation","attest_author":"https://pith.science/pith/5HGI4QOA4GQLHRWBWKCFQZ2FNF/action/author_attestation","sign_citation":"https://pith.science/pith/5HGI4QOA4GQLHRWBWKCFQZ2FNF/action/citation_signature","submit_replication":"https://pith.science/pith/5HGI4QOA4GQLHRWBWKCFQZ2FNF/action/replication_record"}},"created_at":"2026-07-05T06:54:54.122153+00:00","updated_at":"2026-07-05T06:54:54.122153+00:00"}