{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:5JYVWTAKCHKOFZKNLJ5YKEY2T7","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":"a94c0c6566625138990fe0336d4514b60913fa9f8180c35035a4cbbfd008a0d6","cross_cats_sorted":["cs.LG","stat.ML"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"eess.IV","submitted_at":"2019-08-17T17:02:17Z","title_canon_sha256":"42b9572362928d8adba27d16fa3959753ccb1f647046daf1bc46f521ea366999"},"schema_version":"1.0","source":{"id":"1908.06319","kind":"arxiv","version":9}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.06319","created_at":"2026-07-05T00:24:27Z"},{"alias_kind":"arxiv_version","alias_value":"1908.06319v9","created_at":"2026-07-05T00:24:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.06319","created_at":"2026-07-05T00:24:27Z"},{"alias_kind":"pith_short_12","alias_value":"5JYVWTAKCHKO","created_at":"2026-07-05T00:24:27Z"},{"alias_kind":"pith_short_16","alias_value":"5JYVWTAKCHKOFZKN","created_at":"2026-07-05T00:24:27Z"},{"alias_kind":"pith_short_8","alias_value":"5JYVWTAK","created_at":"2026-07-05T00:24:27Z"}],"graph_snapshots":[{"event_id":"sha256:2014e5b2dc650e427c7fd311e74f3a987f117357ac9c0d2bfd2dfa4a6335a2f4","target":"graph","created_at":"2026-07-05T00:24:27Z","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/1908.06319/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Background: \n  Functional magnetic resonance imaging (fMRI) provides non-invasive measures of neuronal activity using an endogenous Blood Oxygenation-Level Dependent (BOLD) contrast. This article introduces a nonlinear dimensionality reduction (Locally Linear Embedding) to extract informative measures of the underlying neuronal activity from BOLD time-series. The method is validated using the Leave-One-Out-Cross-Validation (LOOCV) accuracy of classifying psychiatric diagnoses using resting-state and task-related fMRI.\n  Methods: \n  Locally Linear Embedding of BOLD time-series (into each voxel'","authors_text":"Gagan Sidhu","cross_cats":["cs.LG","stat.ML"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"eess.IV","submitted_at":"2019-08-17T17:02:17Z","title":"Locally Linear Embedding and fMRI feature selection in psychiatric classification"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.06319","kind":"arxiv","version":9},"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":"sha256:8f0210e9421963e07589ac1edacaae8fc96f58d74f1b6b82a6dfca9624398b7f","target":"record","created_at":"2026-07-05T00:24:27Z","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":"a94c0c6566625138990fe0336d4514b60913fa9f8180c35035a4cbbfd008a0d6","cross_cats_sorted":["cs.LG","stat.ML"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"eess.IV","submitted_at":"2019-08-17T17:02:17Z","title_canon_sha256":"42b9572362928d8adba27d16fa3959753ccb1f647046daf1bc46f521ea366999"},"schema_version":"1.0","source":{"id":"1908.06319","kind":"arxiv","version":9}},"canonical_sha256":"ea715b4c0a11d4e2e54d5a7b85131a9ff31f70be55afe085ef2790ae1c540208","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ea715b4c0a11d4e2e54d5a7b85131a9ff31f70be55afe085ef2790ae1c540208","first_computed_at":"2026-07-05T00:24:27.500851Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:24:27.500851Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zNTjeSOovvv+QPTQcgtQF5pgNU3N4EF/ecdnLnW8FcS4hInYWn8+wI5GFc6c6/NI4LFV7e6UXJdx3nHYV9MNCw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:24:27.501455Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.06319","source_kind":"arxiv","source_version":9}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8f0210e9421963e07589ac1edacaae8fc96f58d74f1b6b82a6dfca9624398b7f","sha256:2014e5b2dc650e427c7fd311e74f3a987f117357ac9c0d2bfd2dfa4a6335a2f4"],"state_sha256":"ee660dd77a7828e621597bfae8bcdc66adb148ddcb88907e9c8becca54e4285f"}