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    "story_id": "mp-2026-08-22-012",
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    "headline": "One Extra Look Tightened the Box",
    "slug": "one-extra-look-tightened-the-box",
    "dek": "A frozen vision-language model used its own first prediction to route a higher-resolution second pass.",
    "summary": "A frozen vision-language model used its own first prediction to route a higher-resolution second pass.",
    "body_text": "Label-Free Precision Refinement sends predicted-small regions through one localized re-observation, then accepts a candidate only under fixed geometric guards. It improved multiple grounding datasets and two released specialist models, with the strongest strict-IoU gains in prospective and specialist tests, at roughly twice the latency. An unguarded control regressed, showing that the routing rule—not simply another pass—carried the result.",
    "why_it_matters": "A frozen vision-language model used its own first prediction to route a higher-resolution second pass.",
    "limitations": [
      "Label-Free Precision Refinement sends predicted-small regions through one localized re-observation, then accepts a candidate only under fixed geometric guards.",
      "It improved multiple grounding datasets and two released specialist models, with the strongest strict-IoU gains in prospective and specialist tests, at roughly twice the latency.",
      "An unguarded control regressed, showing that the routing rule—not simply another pass—carried the result."
    ],
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        "qualification": "Label-Free Precision Refinement sends predicted-small regions through one localized re-observation, then accepts a candidate only under fixed geometric guards."
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    "tags": [
      "vision-language models",
      "grounding",
      "bounding boxes"
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  "sources": [
    {
      "source_id": "source-2026-08-22-012",
      "title": "arXiv preprint 2608.19553",
      "publisher": "arXiv",
      "url": "https://arxiv.org/abs/2608.19553",
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      "source_type": "primary_research",
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      "published_at": "2026-08-19T20:00:00.000-04:00",
      "accessed_at": "2026-08-22T08:29:14.000-04:00",
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  "publisher": {
    "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": "One Extra Look Tightened the Box",
    "publisher": "The Machine Press",
    "published_at": "2026-08-22T09:00:00.000-04:00",
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