{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:QJ4R3FNABMHLSUG6FBQVUBY44E","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":"47dd0387ea61976f53c2b74744ee34c397e0185708b5dc128aa4d283f917fee5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-07-30T14:35:02Z","title_canon_sha256":"744b7765d098a8affa680ccc236824a7aed1e0e1cd4050260ab904a6616c20a1"},"schema_version":"1.0","source":{"id":"1807.11368","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.11368","created_at":"2026-05-18T00:09:32Z"},{"alias_kind":"arxiv_version","alias_value":"1807.11368v1","created_at":"2026-05-18T00:09:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.11368","created_at":"2026-05-18T00:09:32Z"},{"alias_kind":"pith_short_12","alias_value":"QJ4R3FNABMHL","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"QJ4R3FNABMHLSUG6","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"QJ4R3FNA","created_at":"2026-05-18T12:32:46Z"}],"graph_snapshots":[{"event_id":"sha256:80ecb0d0e1512e423ff58e9ac2c18bc6a93e868accedde93d207fb4c0b6693f7","target":"graph","created_at":"2026-05-18T00:09:32Z","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":"Accurate and robust segmentation of small organs in whole-body MRI is difficult due to anatomical variation and class imbalance. Recent deep network based approaches have demonstrated promising performance on abdominal multi-organ segmentations. However, the performance on small organs is still suboptimal as these occupy only small regions of the whole-body volumes with unclear boundaries and variable shapes. A coarse-to-fine, hierarchical strategy is a common approach to alleviate this problem, however, this might miss useful contextual information. We propose a two-stage approach with weight","authors_text":"Andrea G. Rockall, Ben Glocker, Daniel Rueckert, Eric O. Aboagye, Ioannis Lavdas, Juan Cerrolaza, Vanya V. Valindria","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-07-30T14:35:02Z","title":"Small Organ Segmentation in Whole-body MRI using a Two-stage FCN and Weighting Schemes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.11368","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":"sha256:57fc5649506c41f58ee418a8481669a1fd75b415ab216608476fbb13f9024d19","target":"record","created_at":"2026-05-18T00:09:32Z","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":"47dd0387ea61976f53c2b74744ee34c397e0185708b5dc128aa4d283f917fee5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-07-30T14:35:02Z","title_canon_sha256":"744b7765d098a8affa680ccc236824a7aed1e0e1cd4050260ab904a6616c20a1"},"schema_version":"1.0","source":{"id":"1807.11368","kind":"arxiv","version":1}},"canonical_sha256":"82791d95a00b0eb950de28615a071ce1038d75385afdb63f830d1a9ff8a2f00d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"82791d95a00b0eb950de28615a071ce1038d75385afdb63f830d1a9ff8a2f00d","first_computed_at":"2026-05-18T00:09:32.087196Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:09:32.087196Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1SKe48LBVQF8w+SRzOMxHcLbwZ8LLd0VGMVtyI2r0oqbb/tdMSS5cl9scUGq7RiGbH/OVDMnHYtVk2gzCo5ABg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:09:32.087731Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.11368","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:57fc5649506c41f58ee418a8481669a1fd75b415ab216608476fbb13f9024d19","sha256:80ecb0d0e1512e423ff58e9ac2c18bc6a93e868accedde93d207fb4c0b6693f7"],"state_sha256":"d3e1c310fe9b9ec38567927c175b78a60888aa4116b98589e9dade88830c9a7a"}