{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:QPAXS6DVAFKMXL4AAX4L2XCE5B","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":"0ebc2ae4e53e576746807a2ecf0622dc3a16926b0dd411d7b4af81850581f33c","cross_cats_sorted":["q-bio.QM","stat.AP"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.LG","submitted_at":"2022-03-14T14:19:08Z","title_canon_sha256":"6f3d1802118ab331fb13a0c73dd370e3b5c4e3da7eed6af4c5e2ed971c472382"},"schema_version":"1.0","source":{"id":"2203.07124","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.07124","created_at":"2026-07-05T04:04:59Z"},{"alias_kind":"arxiv_version","alias_value":"2203.07124v1","created_at":"2026-07-05T04:04:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.07124","created_at":"2026-07-05T04:04:59Z"},{"alias_kind":"pith_short_12","alias_value":"QPAXS6DVAFKM","created_at":"2026-07-05T04:04:59Z"},{"alias_kind":"pith_short_16","alias_value":"QPAXS6DVAFKMXL4A","created_at":"2026-07-05T04:04:59Z"},{"alias_kind":"pith_short_8","alias_value":"QPAXS6DV","created_at":"2026-07-05T04:04:59Z"}],"graph_snapshots":[{"event_id":"sha256:e49336a2d5d4fca4365279a75806db9daeb8059287c7dbb85918552578083af2","target":"graph","created_at":"2026-07-05T04:04:59Z","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/2203.07124/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Biomedical research is increasingly employing real world evidence (RWE) to foster discoveries of novel clinical phenotypes and to better characterize long term effect of medical treatments. However, due to limitations inherent in the collection process, RWE often lacks key features of patients, particularly when these features cannot be directly encoded using data standards such as ICD-10. Here we propose a novel data-driven statistical machine learning approach, named Feature Imputation via Local Likelihood (FILL), designed to infer missing features by exploiting feature similarity between pa","authors_text":"Andres Azqueta-Gavaldon, Jamie Wallis, Luca Albergante, Robert D\\\"urichen, Thanusha Ananthakumar","cross_cats":["q-bio.QM","stat.AP"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.LG","submitted_at":"2022-03-14T14:19:08Z","title":"Similarity-based prediction of Ejection Fraction in Heart Failure Patients"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.07124","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":"sha256:8af1e6fbb7faba562eadf791bd1e3535240274dbb6e92ef8ba96434f2a022dbd","target":"record","created_at":"2026-07-05T04:04:59Z","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":"0ebc2ae4e53e576746807a2ecf0622dc3a16926b0dd411d7b4af81850581f33c","cross_cats_sorted":["q-bio.QM","stat.AP"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.LG","submitted_at":"2022-03-14T14:19:08Z","title_canon_sha256":"6f3d1802118ab331fb13a0c73dd370e3b5c4e3da7eed6af4c5e2ed971c472382"},"schema_version":"1.0","source":{"id":"2203.07124","kind":"arxiv","version":1}},"canonical_sha256":"83c17978750154cbaf8005f8bd5c44e868d7676d4936dad2781a38f1de4558ef","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"83c17978750154cbaf8005f8bd5c44e868d7676d4936dad2781a38f1de4558ef","first_computed_at":"2026-07-05T04:04:59.958029Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:04:59.958029Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zmM7Pchr92HgEkfu8fr/kNDNJaDiUzcNdx1gFDzu+Vg/Q1tnVgTF1WXCJ6L6XsdGZ/SohRibsVUx7PeYnhKABQ==","signature_status":"signed_v1","signed_at":"2026-07-05T04:04:59.958533Z","signed_message":"canonical_sha256_bytes"},"source_id":"2203.07124","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8af1e6fbb7faba562eadf791bd1e3535240274dbb6e92ef8ba96434f2a022dbd","sha256:e49336a2d5d4fca4365279a75806db9daeb8059287c7dbb85918552578083af2"],"state_sha256":"bc7b360464e85e47d224a1c2b2060ddeb9604887b0f38787ab2368e43fde3cfb"}