{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:MDWXZL6ABQ4Q6COKFUANWOSWME","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":"9e08a7e2a9239965cb223930e2711eb4eb5ea0ef283ea7d5fac03ffdfb8eb54b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-09-29T06:56:57Z","title_canon_sha256":"a8c6a5d85dbc540b49493eccd0f7cd5e63c91805defe5c43239de7cea15ecfe9"},"schema_version":"1.0","source":{"id":"2109.14219","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.14219","created_at":"2026-07-05T03:18:33Z"},{"alias_kind":"arxiv_version","alias_value":"2109.14219v1","created_at":"2026-07-05T03:18:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.14219","created_at":"2026-07-05T03:18:33Z"},{"alias_kind":"pith_short_12","alias_value":"MDWXZL6ABQ4Q","created_at":"2026-07-05T03:18:33Z"},{"alias_kind":"pith_short_16","alias_value":"MDWXZL6ABQ4Q6COK","created_at":"2026-07-05T03:18:33Z"},{"alias_kind":"pith_short_8","alias_value":"MDWXZL6A","created_at":"2026-07-05T03:18:33Z"}],"graph_snapshots":[{"event_id":"sha256:fb3a367bf6c4386b190d54c18532b9d7186d53ba5b4048628f977b08d5e0055a","target":"graph","created_at":"2026-07-05T03:18:33Z","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/2109.14219/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This paper proposes an unsupervised cross-modality domain adaptation approach based on pixel alignment and self-training. Pixel alignment transfers ceT1 scans to hrT2 modality, helping to reduce domain shift in the training segmentation model. Self-training adapts the decision boundary of the segmentation network to fit the distribution of hrT2 scans. Experiment results show that PAST has outperformed the non-UDA baseline significantly, and it received rank-2 on CrossMoDA validation phase Leaderboard with a mean Dice score of 0.8395.","authors_text":"Bin Dong, Fei Yu, Hexin Dong, Jie Zhao, Li Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-09-29T06:56:57Z","title":"Unsupervised Domain Adaptation in Semantic Segmentation Based on Pixel Alignment and Self-Training"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.14219","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:c750ba30071d3f884c3c10645da1d3dde9f4592708de933b58d9e652fefa4a10","target":"record","created_at":"2026-07-05T03:18:33Z","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":"9e08a7e2a9239965cb223930e2711eb4eb5ea0ef283ea7d5fac03ffdfb8eb54b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-09-29T06:56:57Z","title_canon_sha256":"a8c6a5d85dbc540b49493eccd0f7cd5e63c91805defe5c43239de7cea15ecfe9"},"schema_version":"1.0","source":{"id":"2109.14219","kind":"arxiv","version":1}},"canonical_sha256":"60ed7cafc00c390f09ca2d00db3a56612f64d3ad1871503c6a5c5ae5fb3ce362","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"60ed7cafc00c390f09ca2d00db3a56612f64d3ad1871503c6a5c5ae5fb3ce362","first_computed_at":"2026-07-05T03:18:33.133098Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:18:33.133098Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QyXaHbKrzDMd8Jg4+1hr+abU5UEdOXHwzwvWVzUhi+GNhYC/afr48P7sgS0ljbxnnWNxpDsCQs3a3rb6AMQ1Bg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:18:33.133588Z","signed_message":"canonical_sha256_bytes"},"source_id":"2109.14219","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c750ba30071d3f884c3c10645da1d3dde9f4592708de933b58d9e652fefa4a10","sha256:fb3a367bf6c4386b190d54c18532b9d7186d53ba5b4048628f977b08d5e0055a"],"state_sha256":"20bfbb387c5e5eadd61a2acbb43bd55e5bdac7e22d1c5ca969b5094363ab1c6d"}