arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2402.07320cs.CVcs.AIcs.LG
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面向可解释、安全自动驾驶的语言嵌入用于新颖性识别与主动学习:基于真实世界数据集的框架与实验分析

Towards Explainable, Safe Autonomous Driving with Language Embeddings for Novelty Identification and Active Learning: Framework and Experimental Analysis with Real-World Data Sets

University of California San Diego(加利福尼亚大学圣迭戈分校);Laboratory for Intelligent and Safe Automobiles(智能与安全汽车实验室)

Ross Greer, Mohan Trivedi

AI总结:

本研究提出一种基于CLIP语言嵌入的自动驾驶主动学习框架,通过聚类检测意外新颖场景并生成文本解释,实现安全接管与数据整理。

摘要:

本研究探索了将语言嵌入用于自动驾驶数据集主动学习的方法,重点关注新颖性检测。新颖性源于自动驾驶车辆难以导航的意外场景,需要更高层次的推理能力。我们提出的方法采用基于语言的表示来识别新颖场景,强调安全接管响应和主动学习的双重目的。本研究提出了一个使用对比语言-图像预训练(CLIP)嵌入的聚类实验,以组织数据集并检测新颖性。我们发现,所提出的算法能有效地从两个真实世界驾驶数据集(一个车载和一个基础设施安装)派生的子集中分离出新场景。从生成的聚类中,我们进一步提出了生成文本解释的方法,用于解释将分类为新场景的元素与数据池中其他场景区分开来的元素,并展示了聚类结果的定性示例。我们的结果证明了语言驱动嵌入在识别新颖元素和生成数据解释方面的有效性,并进一步讨论了在安全接管、数据整理和多任务主动学习中的潜在应用。

英文摘要:

This research explores the integration of language embeddings for active learning in autonomous driving datasets, with a focus on novelty detection. Novelty arises from unexpected scenarios that autonomous vehicles struggle to navigate, necessitating higher-level reasoning abilities. Our proposed method employs language-based representations to identify novel scenes, emphasizing the dual purpose of safety takeover responses and active learning. The research presents a clustering experiment using Contrastive Language-Image Pretrained (CLIP) embeddings to organize datasets and detect novelties. We find that the proposed algorithm effectively isolates novel scenes from a collection of subsets derived from two real-world driving datasets, one vehicle-mounted and one infrastructure-mounted. From the generated clusters, we further present methods for generating textual explanations of elements which differentiate scenes classified as novel from other scenes in the data pool, presenting qualitative examples from the clustered results. Our results demonstrate the effectiveness of language-driven embeddings in identifying novel elements and generating explanations of data, and we further discuss potential applications in safe takeovers, data curation, and multi-task active learning.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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