{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:YDGGGOYNXLLZ2ZGC2QEJZQBEKH","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":"455ef14cd32627e7668129f9beff1ec1772da0b3d38284f4096b95bee25dbeaf","cross_cats_sorted":["q-bio.NC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CE","submitted_at":"2017-05-02T10:59:24Z","title_canon_sha256":"2207486a57878cadf43d988e0ccba7a045e89c5cf47b668572d6188a1f2e431c"},"schema_version":"1.0","source":{"id":"1705.02019","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.02019","created_at":"2026-05-18T00:45:00Z"},{"alias_kind":"arxiv_version","alias_value":"1705.02019v1","created_at":"2026-05-18T00:45:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.02019","created_at":"2026-05-18T00:45:00Z"},{"alias_kind":"pith_short_12","alias_value":"YDGGGOYNXLLZ","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_16","alias_value":"YDGGGOYNXLLZ2ZGC","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_8","alias_value":"YDGGGOYN","created_at":"2026-05-18T12:31:56Z"}],"graph_snapshots":[{"event_id":"sha256:df45e5f0bdf8641bb62edd4aad5dd0c7094c80dc2fc7e378eb9e1cc7c19f819e","target":"graph","created_at":"2026-05-18T00:45:00Z","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"},"paper":{"abstract_excerpt":"Objective: The coupling between neuronal populations and its magnitude have been shown to be informative for various clinical applications. One method to estimate brain connectivity is with electroencephalography (EEG) from which the cross-spectrum between different sensor locations is derived. We wish to test the efficacy of tensor factorisation in the estimation of brain connectivity. Methods: Complex tensor factorisation based on PARAFAC2 is used to decompose the EEG into scalp components described by the spatial, spectral, and complex trial profiles. An EEG model in the complex domain was ","authors_text":"Javier Escudero, Loukianos Spyrou, Mario Parra","cross_cats":["q-bio.NC"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CE","submitted_at":"2017-05-02T10:59:24Z","title":"Complex tensor factorisation with PARAFAC2 for the estimation of brain connectivity from the EEG"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.02019","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":"sha256:73e7e6e501a72ac3e86824f2f966f2d2c8a15081d8562931dcb56b11b5a2e9d7","target":"record","created_at":"2026-05-18T00:45:00Z","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":"455ef14cd32627e7668129f9beff1ec1772da0b3d38284f4096b95bee25dbeaf","cross_cats_sorted":["q-bio.NC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CE","submitted_at":"2017-05-02T10:59:24Z","title_canon_sha256":"2207486a57878cadf43d988e0ccba7a045e89c5cf47b668572d6188a1f2e431c"},"schema_version":"1.0","source":{"id":"1705.02019","kind":"arxiv","version":1}},"canonical_sha256":"c0cc633b0dbad79d64c2d4089cc02451e61280f0a5a1f011bb143862e6cecacb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c0cc633b0dbad79d64c2d4089cc02451e61280f0a5a1f011bb143862e6cecacb","first_computed_at":"2026-05-18T00:45:00.820328Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:45:00.820328Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FKt1YPxRmMd11MLRwMpAS/kewl4PhQx46a3c3G9EXofnGJWVzwRWBg8SUNEwWV19fFdywC1GwJQzfFF1gFbKAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:45:00.820720Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.02019","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:73e7e6e501a72ac3e86824f2f966f2d2c8a15081d8562931dcb56b11b5a2e9d7","sha256:df45e5f0bdf8641bb62edd4aad5dd0c7094c80dc2fc7e378eb9e1cc7c19f819e"],"state_sha256":"3b5ad82d4e48e2e6079451d8207720dd29a952921a036627d619bc2667a0834d"}