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Conventional Deep Learning (DL) approaches for Knee Osteoarthritis (KOA) grading rely on one-hot labels, which fail to capture both the ordinal uncertainty of Kellgren--Lawrence (KL) and Calcium Pyrophosphate Deposition Disease (CPPD) severity scores and the asymmetric relationship between the two scales observed in clinical practice.\n  Methods. We retrospectively collected 2172 knee X-ray images, including 968 radiographs jointly annotated for KL and CPPD severity. An ordinal DL framework based on soft-labelling was developed for both tasks, replacing one-hot targets"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2605.28176","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2026-05-27T08:57:01Z","cross_cats_sorted":[],"title_canon_sha256":"8f1ee32cc62468c2637b183f426eb897cf536b205488bad40199711a0a68616c","abstract_canon_sha256":"601da43b3d856e8c5b0483d4cbfb1323120c44f5117864428298f2ff0767202b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-28T01:05:01.333790Z","signature_b64":"+CmATwWiYxAOROMjuR5QykmqaqdJRCeZkUduokG/0+WFAu7qN4i2uHLPrEGiQs4Tl39Z5ijK1eV+Xjf5UqbTDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"32d295fc77f720cc6d53ff38144a73a7b045a830bc6401c99ffdee137d85c13b","last_reissued_at":"2026-05-28T01:05:01.333361Z","signature_status":"signed_v1","first_computed_at":"2026-05-28T01:05:01.333361Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"From Kellgren-Lawrence to Calcium Pyrophosphate Crystal Deposition: A Soft-Labelling Framework for Knee Osteoarthritis Assessmen","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"C\\'esar Herv\\'as-Mart\\'inez, Edoardo Cipolletta, Emilio Filippucci, Francisco B\\'erchez-Moreno, Luca Romeo, Maria Chiara Fiorentino, Pedro A. 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