arXiv preprint2022
Michael Ahn, Anthony Brohan, Noah Brown, Yevgen Chebotar, Omar Cortes, Byron David, Chelsea Finn, Chuyuan Fu, Keerthana Gopalakrishnan, Karol Hausman, Alex Herzog, Daniel Ho, Jasmine Hsu, Julian Ibarz, Brian Ichter, Alex Irpan, Eric Jang, Rosario Jauregui Ruano, Kyle Jeffrey, Sally Jesmonth, Nikhil J Joshi, Ryan Julian, Yuheng Kuang, Kuang-Huei Lee, Sergey Levine, Yao Lu, Linda Luu, Carolina Parada, Peter Pastor, Jornell Quiambao
Robotics at Google, Everyday Robots
具身智能机器人学习三维感知
论文针对大语言模型具备常识但缺乏物理落地、易生成机器人不可执行步骤的问题,提出 SayCan:用 LLM 评估技能对高层指令的语义相关性,用强化学习学到的技能价值函数/affordance 评估当前场景中是否可执行,并将二者结合选择下一步。真实厨房移动操作机器人上 101 个零样本任务显示,该 grounding 相比未落地基线近乎翻倍成功率,并可随底层语言模型增强而提升。