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MindVLA第四步:通过RLHF及RL进行模型后训练
MindVLA第四步:通过RLHF及RL进行模型后训练
行业数据
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所属报告:
理想汽车~W(2015.HK)-港股公司研究报告:汽车与AI双向赋能迈向全球领先的物理智能体企业-250727(48页).pdf
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MindVLA有望为用户带来全新的产品形态和产品体验
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图表23.理想MindVLA训练与推理的四个阶段
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第四步,模型的后训练。通过RLHF 和强化学习,使模型进一步对齐人类价值观并进一步超越人类驾驶水平。1)通过 RLHF(基于人类反馈的强化学习)使模型更好地对齐人类驾驶行为。为解决长尾工况下 VLA 仍然存在的不符合人类价值观的问题,理想通过筛选大量接管数据建立人类偏好数据集,并且应用RLHF 微调模型的采样过程,使模型能够从偏好数据中学习和对齐人类驾驶行为,从而显著提升安全下限。2)将模型放置到世界模型构建的云端虚拟场景中进行强化学习,从而令其达到甚至超越人类专家的水平。强化学习旨在让智能体与环境不断交互,通过尝试不同的行动来最大化累积的奖励,从而改善模型性能和奖励函数。优秀的仿真模拟器对于实现模型强化学习至关重要,Mind VLA 基于自研的重建+生成云端统一世界模型,深度融合重建模型的三维场景还原能力、以及生成模型的新视角补全及未见视角预测能力,构建了接近真实世界的仿真环境,并实现了大规模闭环的强化学习。
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理想汽车~W(2015.HK)-港股公司研究报告:汽车与AI双向赋能迈向全球领先的物理智能体企业-250727(48页).pdf
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