外观
论文arXiv 2610.1063521 天前
说导航器的语言:面向冻结空中 VLN 智能体的轨迹扎根指令翻译
原文链接:Speaking the Navigator's Language: Trajectory-Grounded Instruction Translation for Frozen Aerial VLN Agents(arXiv 2610.10635 · 发布日期:2026-10-07)
Speaking the Navigator's Language: Trajectory-Grounded Instruction Translation for Frozen Aerial VLN Agents
针对空中VLN用户短指令与训练命令不匹配,TGIT从轨迹结果学习翻译,并在OpenFly、人类指令及CityNav/AirVLN上验证。
核心要点
- 空中VLN常用细节丰富且轨迹对齐的命令训练,但用户多给出短而意图驱动的指令。
- 作者用人写风格示例提示语言模型,将原始命令转成成对的意图中心Weak命令以扩展训练。
- TGIT作为前端保持导航器冻结,依据其轨迹结果学习把Weak输入翻译为可执行命令。
- Weak训练翻译器提升Weak输入成功率,并零样本迁移到真实人类指令及其他环境。
验证范围与局限:摘要未说明仿真或真机及机器数量;验证范围包括OpenFly、真实人类指令、留出OpenFly、CityNav和AirVLN。
英文摘要 (Abstract)
Aerial vision-and-language navigation (VLN) agents are typically trained on detail-rich, trajectory-aligned commands, whereas users issue short, intent-driven instructions; on a frozen OpenFly navigator, this \emph{instruction gap} drops success rate (SR) from $31.03%$ to $11.33%$. To scale translator training, we prompt a language model with human-written style examples to convert original commands into paired, intent-centered Weak commands, which yield $15.27%$ SR. We introduce the \textbf{Trajectory-Grounded Instruction Translator (TGIT)}, a front-end that keeps the navigator frozen and translates Weak inputs into agent-executable commands by learning from its trajectory outcomes. The resulting Weak-trained translator raises Weak-input SR to $37.93%$ and transfers zero-shot to real human instructions ($11.33%{\rightarrow}32.51%$); it also improves held-out OpenFly ($4.95%{\rightarrow}20.79%$) and yields recovery on CityNav and AirVLN.
作者:Xi Chen, Zhe Liu, Xiaogang Xu, Jiafei Xu, Chunyi Zhou, Yuan Su, Rui Zeng, Tianyu Du, Kelu Yao, Chao Li
来源
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