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    "story_id": "mp-2026-10-29-008",
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    "position": 8,
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    "section": "safety-security",
    "editorial_classification": "editorial",
    "headline": "The Confidence Score Mistook Rarity for Ambiguity",
    "slug": "the-confidence-score-mistook-rarity-for-ambiguity",
    "dek": "Across 56 synthetic conditions and three neurodegenerative cohorts, standard uncertainty scores could systematically defer minority patients despite clear predictions.",
    "summary": "Across 56 synthetic conditions and three neurodegenerative cohorts, standard uncertainty scores could systematically defer minority patients despite clear predictions.",
    "body_text": "Selective clinical systems are meant to pass ambiguous cases to people, but under severe class imbalance a global uncertainty score can become a proxy for the minority class itself. Across 56 synthetic settings and multiple-sclerosis, Parkinson's and Alzheimer's cohorts, the authors report that standard measures either collapsed minority sensitivity or protected it by over-deferring the majority. Their class-conditional risk framework with threshold-aware metrics maintained bounded, more balanced risk and restored within-class monotonicity. The findings concern the evaluated prognostic tasks and do not establish clinical safety without prospective validation.",
    "why_it_matters": "Across 56 synthetic conditions and three neurodegenerative cohorts, standard uncertainty scores could systematically defer minority patients despite clear predictions.",
    "limitations": [
      "The findings concern the evaluated prognostic tasks and do not establish clinical safety without prospective validation."
    ],
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    "first_published_at": "2026-10-29T09:00:00.000-04:00",
    "modified_at": "2026-10-29T09:00:00.000-04:00",
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        "text": "Across 56 synthetic conditions and three neurodegenerative cohorts, standard uncertainty scores could systematically defer minority patients despite clear predictions.",
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        "qualification": "The findings concern the evaluated prognostic tasks and do not establish clinical safety without prospective validation."
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    "tags": [
      "clinical AI",
      "uncertainty",
      "class imbalance",
      "selective prediction"
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  "sources": [
    {
      "source_id": "source-2026-10-29-008",
      "title": "arXiv preprint 2610.37561, original v1",
      "publisher": "arXiv",
      "url": "https://arxiv.org/abs/2610.37561v1",
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      "published_at": "2026-10-26T20:00:00.000-04:00",
      "accessed_at": "2026-10-29T08:20:13.210-04:00",
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    "name": "The Machine Press",
    "url": "https://themachinepress.com",
    "description": "A daily newspaper for the age of artificial intelligence."
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  "cite_this_report": {
    "title": "The Confidence Score Mistook Rarity for Ambiguity",
    "publisher": "The Machine Press",
    "published_at": "2026-10-29T09:00:00.000-04:00",
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