{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:NAWCYNMZ5CGS3ZXLSQFTQKFVEA","short_pith_number":"pith:NAWCYNMZ","canonical_record":{"source":{"id":"2406.03172","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2024-06-05T12:03:45Z","cross_cats_sorted":[],"title_canon_sha256":"b65b4d83bded28ca9623ce011e59688b881b2500a6c603cca3b58d5244e889c1","abstract_canon_sha256":"67cfb2b2b744b20219dcb78e405871dbbd1ae485ae8ca2095cc41aac5fb660dd"},"schema_version":"1.0"},"canonical_sha256":"682c2c3599e88d2de6eb940b3828b5203e9e526d46944bccfc868c90648469da","source":{"kind":"arxiv","id":"2406.03172","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2406.03172","created_at":"2026-07-05T08:27:52Z"},{"alias_kind":"arxiv_version","alias_value":"2406.03172v1","created_at":"2026-07-05T08:27:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2406.03172","created_at":"2026-07-05T08:27:52Z"},{"alias_kind":"pith_short_12","alias_value":"NAWCYNMZ5CGS","created_at":"2026-07-05T08:27:52Z"},{"alias_kind":"pith_short_16","alias_value":"NAWCYNMZ5CGS3ZXL","created_at":"2026-07-05T08:27:52Z"},{"alias_kind":"pith_short_8","alias_value":"NAWCYNMZ","created_at":"2026-07-05T08:27:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:NAWCYNMZ5CGS3ZXLSQFTQKFVEA","target":"record","payload":{"canonical_record":{"source":{"id":"2406.03172","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2024-06-05T12:03:45Z","cross_cats_sorted":[],"title_canon_sha256":"b65b4d83bded28ca9623ce011e59688b881b2500a6c603cca3b58d5244e889c1","abstract_canon_sha256":"67cfb2b2b744b20219dcb78e405871dbbd1ae485ae8ca2095cc41aac5fb660dd"},"schema_version":"1.0"},"canonical_sha256":"682c2c3599e88d2de6eb940b3828b5203e9e526d46944bccfc868c90648469da","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:27:52.358149Z","signature_b64":"cKlZOnZFuqQsYnAOWybFRz8GQy6E/iKrGFyxKE1UOri659M3ZWMPuHf5Ci/n+KzHig97y2mTPBGpqi+pqrUBAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"682c2c3599e88d2de6eb940b3828b5203e9e526d46944bccfc868c90648469da","last_reissued_at":"2026-07-05T08:27:52.357733Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:27:52.357733Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2406.03172","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T08:27:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8nkOLyAsIkFWVl/tJr3flrivLhirw36c9qZbvns1ppnD+ncY26OuXu0ZmCeJHbIRB2tRn1OfBz19Zl/LdpiIBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T15:02:35.588977Z"},"content_sha256":"a19322ed78457fad88d4f9088100cfc4703552b25b96a9563225b1be55a1effd","schema_version":"1.0","event_id":"sha256:a19322ed78457fad88d4f9088100cfc4703552b25b96a9563225b1be55a1effd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:NAWCYNMZ5CGS3ZXLSQFTQKFVEA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Initialization-enhanced Physics-Informed Neural Network with Domain Decomposition (IDPINN)","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.LG","authors_text":"Chenhao Si, Ming Yan","submitted_at":"2024-06-05T12:03:45Z","abstract_excerpt":"We propose a new physics-informed neural network framework, IDPINN, based on the enhancement of initialization and domain decomposition to improve prediction accuracy. We train a PINN using a small dataset to obtain an initial network structure, including the weighted matrix and bias, which initializes the PINN for each subdomain. Moreover, we leverage the smoothness condition on the interface to enhance the prediction performance. We numerically evaluated it on several forward problems and demonstrated the benefits of IDPINN in terms of accuracy."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2406.03172","kind":"arxiv","version":1},"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/2406.03172/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T08:27:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NfNFixZQ+HZLxSfTQWOSefTjKpTIYfneccyOViS3nqP2Fe4qfL/x3vXCsveIiNSBLy1xUXVakwMkbZ8rzKyMCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T15:02:35.589537Z"},"content_sha256":"23f6bf037662aa55f28d34af8fa6c3d8557ed1e7163befc82164501ee449d84d","schema_version":"1.0","event_id":"sha256:23f6bf037662aa55f28d34af8fa6c3d8557ed1e7163befc82164501ee449d84d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NAWCYNMZ5CGS3ZXLSQFTQKFVEA/bundle.json","state_url":"https://pith.science/pith/NAWCYNMZ5CGS3ZXLSQFTQKFVEA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NAWCYNMZ5CGS3ZXLSQFTQKFVEA/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-20T15:02:35Z","links":{"resolver":"https://pith.science/pith/NAWCYNMZ5CGS3ZXLSQFTQKFVEA","bundle":"https://pith.science/pith/NAWCYNMZ5CGS3ZXLSQFTQKFVEA/bundle.json","state":"https://pith.science/pith/NAWCYNMZ5CGS3ZXLSQFTQKFVEA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NAWCYNMZ5CGS3ZXLSQFTQKFVEA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:NAWCYNMZ5CGS3ZXLSQFTQKFVEA","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":"67cfb2b2b744b20219dcb78e405871dbbd1ae485ae8ca2095cc41aac5fb660dd","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2024-06-05T12:03:45Z","title_canon_sha256":"b65b4d83bded28ca9623ce011e59688b881b2500a6c603cca3b58d5244e889c1"},"schema_version":"1.0","source":{"id":"2406.03172","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2406.03172","created_at":"2026-07-05T08:27:52Z"},{"alias_kind":"arxiv_version","alias_value":"2406.03172v1","created_at":"2026-07-05T08:27:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2406.03172","created_at":"2026-07-05T08:27:52Z"},{"alias_kind":"pith_short_12","alias_value":"NAWCYNMZ5CGS","created_at":"2026-07-05T08:27:52Z"},{"alias_kind":"pith_short_16","alias_value":"NAWCYNMZ5CGS3ZXL","created_at":"2026-07-05T08:27:52Z"},{"alias_kind":"pith_short_8","alias_value":"NAWCYNMZ","created_at":"2026-07-05T08:27:52Z"}],"graph_snapshots":[{"event_id":"sha256:23f6bf037662aa55f28d34af8fa6c3d8557ed1e7163befc82164501ee449d84d","target":"graph","created_at":"2026-07-05T08:27:52Z","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/2406.03172/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We propose a new physics-informed neural network framework, IDPINN, based on the enhancement of initialization and domain decomposition to improve prediction accuracy. We train a PINN using a small dataset to obtain an initial network structure, including the weighted matrix and bias, which initializes the PINN for each subdomain. Moreover, we leverage the smoothness condition on the interface to enhance the prediction performance. We numerically evaluated it on several forward problems and demonstrated the benefits of IDPINN in terms of accuracy.","authors_text":"Chenhao Si, Ming Yan","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2024-06-05T12:03:45Z","title":"Initialization-enhanced Physics-Informed Neural Network with Domain Decomposition (IDPINN)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2406.03172","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:a19322ed78457fad88d4f9088100cfc4703552b25b96a9563225b1be55a1effd","target":"record","created_at":"2026-07-05T08:27:52Z","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":"67cfb2b2b744b20219dcb78e405871dbbd1ae485ae8ca2095cc41aac5fb660dd","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2024-06-05T12:03:45Z","title_canon_sha256":"b65b4d83bded28ca9623ce011e59688b881b2500a6c603cca3b58d5244e889c1"},"schema_version":"1.0","source":{"id":"2406.03172","kind":"arxiv","version":1}},"canonical_sha256":"682c2c3599e88d2de6eb940b3828b5203e9e526d46944bccfc868c90648469da","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"682c2c3599e88d2de6eb940b3828b5203e9e526d46944bccfc868c90648469da","first_computed_at":"2026-07-05T08:27:52.357733Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:27:52.357733Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cKlZOnZFuqQsYnAOWybFRz8GQy6E/iKrGFyxKE1UOri659M3ZWMPuHf5Ci/n+KzHig97y2mTPBGpqi+pqrUBAg==","signature_status":"signed_v1","signed_at":"2026-07-05T08:27:52.358149Z","signed_message":"canonical_sha256_bytes"},"source_id":"2406.03172","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a19322ed78457fad88d4f9088100cfc4703552b25b96a9563225b1be55a1effd","sha256:23f6bf037662aa55f28d34af8fa6c3d8557ed1e7163befc82164501ee449d84d"],"state_sha256":"65399d350843454f465dae4ed1e701d67c4b7b84557784853cee295f6cea023e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K0CyrzjUR0h4KC4rNkMPuBdXChzb5wl4dvjG4i10RjDQSdZWNoYGxSsWI8djvmpAj4Oxk1KWfiNX8JXIkIoGBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T15:02:35.593270Z","bundle_sha256":"b08fb66dcd809462bf30d37d736a02443006a83d94e411db111612843bdb3f98"}}