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    "story_id": "mp-2026-08-15-011",
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    "section": "robotics",
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    "headline": "The Navigator Repositioned Before It Decided",
    "slug": "the-navigator-repositioned-before-it-decided",
    "dek": "SAP-Nav builds an online spatial-semantic memory and seeks a clearer view before verifying an open-vocabulary target.",
    "summary": "SAP-Nav builds an online spatial-semantic memory and seeks a clearer view before verifying an open-vocabulary target.",
    "body_text": "The zero-shot system maintains a queryable representation of explored rooms and tests whether the current camera view contains enough evidence for a requested object and attributes. When it does not, the robot moves to a more informative viewpoint. On LangMap and HM3D-OVON, the authors report the best overall performance, including a 12.2 percent success-rate gain over training-based methods for region-level navigation, plus a limited real-robot feasibility demonstration.",
    "why_it_matters": "SAP-Nav builds an online spatial-semantic memory and seeks a clearer view before verifying an open-vocabulary target.",
    "limitations": [
      "When it does not, the robot moves to a more informative viewpoint."
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    "first_published_at": "2026-08-15T09:00:00.000-04:00",
    "modified_at": "2026-08-15T09:00:00.000-04:00",
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        "qualification": "When it does not, the robot moves to a more informative viewpoint."
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    "tags": [
      "object navigation",
      "active perception",
      "spatial memory",
      "robots"
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    "image_url": null,
    "corrections": []
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  "sources": [
    {
      "source_id": "source-2026-08-15-011",
      "title": "arXiv preprint 2608.12707",
      "publisher": "arXiv",
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      "published_at": "2026-08-12T21:43:18.000-04:00",
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    "title": "The Navigator Repositioned Before It Decided",
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