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        "url": "https://haiguangboy.com/posts/d4rt_efficiently_reconstructing_dynamic_scenes_one",
        "relation": "same_track",
        "summary": "二维视频预测不自动保证三维与多视角一致 validates D4RT输出是相对/up-to-scale,不是metric——这是当具身3D数据源的命门",
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    "text": "💡 和OpenWAM放在一起看\nOpenWAM在其评测中发现：没有具身预训练时，单向信息流略占优；加入预训练后，双向互通的优势才显现。这给综述的分类补上一个条件：架构优劣会随预训练条件改变，不能只凭“统一”或“解耦”选边。\n\n半年后回看，值得检验的是：固定数据和算力预算，分开优化世界与策略，能否减少模型偏差引起的真实执行退化。这个结果，才有助于判断分离优化的价值。"
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