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字节跳动提出统一自动驾驶世界模型框架
2025-12-16 09:08:08
字节跳动提出统一自动驾驶世界模型框架
端到端自动驾驶在真实道路中长期受限于“长尾场景理解不足、视觉因果建模弱、推理与规划割裂”。UniUGP 提出一种统一的 Understanding–Generation–Planning 框架,将视觉理解、语言推理、未来视频生成与轨迹规划整合为单一模型,显著提升复杂与极端场景下的泛化、安全与可解释能力,代表了自动驾驶大模型向“世界模型 + 推理规划一体化”的关键演进方向。
核心亮点:
统一 UGP 架构: 首次在端到端自动驾驶中系统性统一“场景理解(Understanding)+ 未来生成(Generation)+ 行为规划(Planning)”,单模型同时输出 CoT 推理、物理一致轨迹和未来视频。
混合专家架构(Hybrid Experts): 采用 MoT(Mixture-of-Transformers)连接理解专家与规划专家,并串联生成专家作为世界模型,实现语言推理、动作生成与视觉因果建模的协同。
CoT 可解释推理引入规划闭环: 模型不仅给出轨迹,还生成与真实未来轨迹对齐的 Chain-of-Thought 推理,解释“为什么要这样开”,提升安全审计与人类可理解性。
世界模型增强 VLA: 通过视频生成专家学习视觉动态因果关系,弥补传统 VLA 无法利用大量无标注视频的缺陷,显著提升远距风险感知与长尾预测能力。
四阶段渐进训练策略: 从基础理解 → 视觉动态与规划 → 文本因果推理 → 多能力融合,系统性对齐多模态能力,避免一次性联合训练的不稳定性。
面向长尾的专用数据构建: 构建覆盖小目标、事故关系、事故预测、指令跟随的长尾 QA 与 CoT 数据集,显著增强极端与低概率高风险场景泛化。
生成与规划可控: 支持通过修改轨迹条件生成不同未来视频,实现“轨迹-视觉”双向可控,为仿真、验证与数据增强提供新范式。
arXiv:2512.09864
#自动驾驶
#多模态大模型
#世界模型
#端到端
#AIChannel
#因果推理
#字节跳动
#科研解读
#智能驾驶
#模型架构
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CONNECT:[ UseTime:0.000779s ] mysql:host=127.0.0.1;port=3306;dbname=e_mffb;charset=utf8mb4
SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001751s ]
SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000632s ]
SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000620s ]
SHOW FULL COLUMNS FROM `set` [ RunTime:0.001584s ]
SELECT * FROM `set` [ RunTime:0.000495s ]
SHOW FULL COLUMNS FROM `article` [ RunTime:0.001705s ]
SELECT * FROM `article` WHERE `id` = 458251 LIMIT 1 [ RunTime:0.003605s ]
UPDATE `article` SET `lasttime` = 1766046774 WHERE `id` = 458251 [ RunTime:0.009722s ]
SELECT * FROM `fenlei` WHERE `id` = 67 LIMIT 1 [ RunTime:0.000532s ]
SELECT * FROM `article` WHERE `id` < 458251 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.019525s ]
SELECT * FROM `article` WHERE `id` > 458251 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001125s ]
SELECT * FROM `article` WHERE `id` < 458251 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001242s ]
SELECT * FROM `article` WHERE `id` < 458251 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.004812s ]
SELECT * FROM `article` WHERE `id` < 458251 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001136s ]
0.213995s