{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:ELT6KP3N5O2YRZHL3OHOAZZPQD","short_pith_number":"pith:ELT6KP3N","schema_version":"1.0","canonical_sha256":"22e7e53f6debb588e4ebdb8ee0672f80de95d185c04b10535bb08ceb1455fc2b","source":{"kind":"arxiv","id":"1803.02793","version":2},"attestation_state":"computed","paper":{"title":"Topology Learning of Radial Dynamical Systems with Latent Nodes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.SY","authors_text":"Deepjyoti Deka, Michael Chertkov, Murti Salapaka, Saurav Talukdar","submitted_at":"2018-03-07T18:02:41Z","abstract_excerpt":"In this article, we present a method to reconstruct the topology of a partially observed radial network of linear dynamical systems with bi-directional interactions. Our approach exploits the structure of the inverse power spectral density matrix and recovers edges involving nodes up to four hops away in the underlying topology. We then present an algorithm with provable guarantees, which eliminates the spurious links obtained and also identifies the location of the unobserved nodes in the inferred topology. The algorithm recovers the exact topology of the network by using only time-series of "},"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":"1803.02793","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2018-03-07T18:02:41Z","cross_cats_sorted":[],"title_canon_sha256":"2dfcfbc6f79264921567c55b9661dea274995000a80eaa82a123979ed8fdddeb","abstract_canon_sha256":"ef7769106592e62ca182783b3f2e48bfa4908c7b8e2a85e82a7731489590733c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:10:54.481617Z","signature_b64":"y3qG4sG1u6LTXpLLCTwcS9ds8VUXld63+WgZ5A1vjOSnkq8/ggJoTX0NAcgi5I5rZ/IFtoHvy3dBeDQSNtgHDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"22e7e53f6debb588e4ebdb8ee0672f80de95d185c04b10535bb08ceb1455fc2b","last_reissued_at":"2026-05-18T00:10:54.480964Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:10:54.480964Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Topology Learning of Radial Dynamical Systems with Latent Nodes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.SY","authors_text":"Deepjyoti Deka, Michael Chertkov, Murti Salapaka, Saurav Talukdar","submitted_at":"2018-03-07T18:02:41Z","abstract_excerpt":"In this article, we present a method to reconstruct the topology of a partially observed radial network of linear dynamical systems with bi-directional interactions. Our approach exploits the structure of the inverse power spectral density matrix and recovers edges involving nodes up to four hops away in the underlying topology. We then present an algorithm with provable guarantees, which eliminates the spurious links obtained and also identifies the location of the unobserved nodes in the inferred topology. The algorithm recovers the exact topology of the network by using only time-series of "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.02793","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":""},"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":"1803.02793","created_at":"2026-05-18T00:10:54.481074+00:00"},{"alias_kind":"arxiv_version","alias_value":"1803.02793v2","created_at":"2026-05-18T00:10:54.481074+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.02793","created_at":"2026-05-18T00:10:54.481074+00:00"},{"alias_kind":"pith_short_12","alias_value":"ELT6KP3N5O2Y","created_at":"2026-05-18T12:32:22.470017+00:00"},{"alias_kind":"pith_short_16","alias_value":"ELT6KP3N5O2YRZHL","created_at":"2026-05-18T12:32:22.470017+00:00"},{"alias_kind":"pith_short_8","alias_value":"ELT6KP3N","created_at":"2026-05-18T12:32:22.470017+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/ELT6KP3N5O2YRZHL3OHOAZZPQD","json":"https://pith.science/pith/ELT6KP3N5O2YRZHL3OHOAZZPQD.json","graph_json":"https://pith.science/api/pith-number/ELT6KP3N5O2YRZHL3OHOAZZPQD/graph.json","events_json":"https://pith.science/api/pith-number/ELT6KP3N5O2YRZHL3OHOAZZPQD/events.json","paper":"https://pith.science/paper/ELT6KP3N"},"agent_actions":{"view_html":"https://pith.science/pith/ELT6KP3N5O2YRZHL3OHOAZZPQD","download_json":"https://pith.science/pith/ELT6KP3N5O2YRZHL3OHOAZZPQD.json","view_paper":"https://pith.science/paper/ELT6KP3N","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1803.02793&json=true","fetch_graph":"https://pith.science/api/pith-number/ELT6KP3N5O2YRZHL3OHOAZZPQD/graph.json","fetch_events":"https://pith.science/api/pith-number/ELT6KP3N5O2YRZHL3OHOAZZPQD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ELT6KP3N5O2YRZHL3OHOAZZPQD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ELT6KP3N5O2YRZHL3OHOAZZPQD/action/storage_attestation","attest_author":"https://pith.science/pith/ELT6KP3N5O2YRZHL3OHOAZZPQD/action/author_attestation","sign_citation":"https://pith.science/pith/ELT6KP3N5O2YRZHL3OHOAZZPQD/action/citation_signature","submit_replication":"https://pith.science/pith/ELT6KP3N5O2YRZHL3OHOAZZPQD/action/replication_record"}},"created_at":"2026-05-18T00:10:54.481074+00:00","updated_at":"2026-05-18T00:10:54.481074+00:00"}