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arXiv 2108.11544cs.CVcs.MM
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视觉语言导航:综述与分类

Vision-Language Navigation: A Survey and Taxonomy

National University of Defense Technology(国防科技大学)

Wansen Wu, Tao Chang, Xinmeng Li

摘要:

视觉语言导航(VLN)任务要求智能体遵循人类语言指令,在以前看不见的环境中导航。这个充满挑战的领域涉及自然语言处理、计算机视觉、机器人等方面的问题,已经产生了许多优秀的作品,专注于各种VLN任务。本文根据这些任务中语言指令的不同特点,对这些任务进行了全面的调查和深入的分类。根据导航指令是一次还是多次给出,本文将任务分为两类,单圈和多圈任务。对于单回合任务,我们进一步细分为目标导向和路线导向的基础上,指示指定一个单一的目标位置或指定多个位置的序列。对于多轮任务,我们将其细分为被动和交互式任务的基础上,代理是否被允许质疑的指令或没有。这些任务需要代理的不同能力,并需要各种模型设计。我们确定的任务取得的进展,并期待现有的VLN模型和任务设置的局限性。最后,我们讨论了VLN的几个开放问题,并指出了未来的一些机会,即,将知识与VLN模型相结合,并在真实的物理世界中实现它们。

英文摘要:

Vision-Language Navigation (VLN) tasks require an agent to follow human language instructions to navigate in previously unseen environments. This challenging field involving problems in natural language processing, computer vision, robotics, etc., has spawn many excellent works focusing on various VLN tasks. This paper provides a comprehensive survey and an insightful taxonomy of these tasks based on the different characteristics of language instructions in these tasks. Depending on whether the navigation instructions are given for once or multiple times, this paper divides the tasks into two categories, i.e., single-turn and multi-turn tasks. For single-turn tasks, we further subdivide them into goal-oriented and route-oriented based on whether the instructions designate a single goal location or specify a sequence of multiple locations. For multi-turn tasks, we subdivide them into passive and interactive tasks based on whether the agent is allowed to question the instruction or not. These tasks require different capabilities of the agent and entail various model designs. We identify progress made on the tasks and look into the limitations of existing VLN models and task settings. Finally, we discuss several open issues of VLN and point out some opportunities in the future, i.e., incorporating knowledge with VLN models and implementing them in the real physical world.

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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