NAVIGATIONCURRENT2026-04-29

Walk With Me: Long-Horizon Social Navigation for Human-Centric Outdoor Assistance

Lingfeng Zhang, Xiaoshuai Hao, Xizhou Bu, Yingbo Tang, Hongsheng Li, Jinghui Lu, Xiu-shen Wei, Jiayi Ma, Yu Liu, Jing Zhang, Hangjun Ye, Xiaojun Liang, Long Chen, Wenbo Ding

Build outdoor Navigation & LocomotionNavigationMoving through an environment toward a goal. robots that follow natural language instructions in real-world cities without pre-built maps by combining vision-language models for high-level Control & PlanningPlanningFiguring out what the robot should do before or during movement. with low-level Core ConceptsActionA command the robot sends to its motors, controller, or low-level system. policies that handle crowds and safety. This solves the practical problem of deploying mobile robots in dynamic outdoor environments where HD maps don't exist.

THE PROBLEM

This paper focuses on Navigation & LocomotionNavigationMoving through an environment toward a goal.. Build outdoor Navigation & LocomotionNavigationMoving through an environment toward a goal. robots that follow natural language instructions in real-world cities without pre-built maps by combining vision-language models for high-level Control & PlanningPlanningFiguring out what the robot should do before or during movement. with low-level Core ConceptsActionA command the robot sends to its motors, controller, or low-level system. policies that handle crowds and safety. This solves the practical problem of deploying mobile robots in dynamic outdoor environments where HD maps don't exist. Read the paper by tracking the Core ConceptsTaskThe job the robot is supposed to complete, such as pick-and-place, navigation, or drawer opening. definition, the Core ConceptsRobotA physical system with sensors and actuators that can observe the world and take actions. or data assumptions, and the evidence that supports the claimed improvement.

HOW IT WORKS

1

Task framing

The paper frames the work as Navigation & LocomotionNavigationMoving through an environment toward a goal.. Start here because it defines what success means and which assumptions the rest of the method inherits.

2

Core method

Build outdoor Navigation & LocomotionNavigationMoving through an environment toward a goal. robots that follow natural language instructions in real-world cities without pre-built maps by combining vision-language models for high-level Control & PlanningPlanningFiguring out what the robot should do before or during movement. with low-level Core ConceptsActionA command the robot sends to its motors, controller, or low-level system. policies that handle crowds and safety. This solves the practical problem of deploying mobile robots in dynamic outdoor environments where HD maps don't exist. When reading the method section, identify the inputs, the learned or engineered representation, and the Core ConceptsActionA command the robot sends to its motors, controller, or low-level system. or prediction produced by the system.

3

Data and supervision

For robotics work, the data story is part of the method: check whether the system depends on Imitation & Reinforcement LearningTeleoperation (teleop)A human remotely controlling the robot, often to collect demonstrations., Simulation & Sim-to-RealSimulationA virtual environment where robots can be trained or tested., internet video, human labels, or Core ConceptsRobotA physical system with sensors and actuators that can observe the world and take actions. rollouts.

4

Evaluation evidence

The paper should be judged through its Simulation & Sim-to-RealEvaluationMeasuring how well a robot system performs. protocol: what data is used, what Core ConceptsRobotA physical system with sensors and actuators that can observe the world and take actions. or simulator is tested, and which Evaluation & ResearchBaselineA reference method used for comparison. comparisons support the claim. Look for the gap between the headline result and the Simulation & Sim-to-RealDeploymentPutting the trained system on a real robot. setting you would actually care about.

FIGURES

KEY RESULTS

Main contributionConceptual contribution

Build outdoor Navigation & LocomotionNavigationMoving through an environment toward a goal. robots that follow natural language instructions in real-world cities without pre-built maps by combining vision-language models for high-level Control & PlanningPlanningFiguring out what the robot should do before or during movement. with low-level Core ConceptsActionA command the robot sends to its motors, controller, or low-level system. policies that handle crowds and safety. This solves the practical problem of deploying mobile robots in dynamic outdoor environments where HD maps don't exist.

WHY DEVELOPERS SHOULD CARE

Build outdoor Navigation & LocomotionNavigationMoving through an environment toward a goal. robots that follow natural language instructions in real-world cities without pre-built maps by combining vision-language models for high-level Control & PlanningPlanningFiguring out what the robot should do before or during movement. with low-level Core ConceptsActionA command the robot sends to its motors, controller, or low-level system. policies that handle crowds and safety. This solves the practical problem of deploying mobile robots in dynamic outdoor environments where HD maps don't exist.

LIMITATIONS

The main limitation to check is whether the claimed behavior holds outside the paper's reported setup. That means testing across different Core ConceptsRobotA physical system with sensors and actuators that can observe the world and take actions. embodiments, scenes, objects, and data distributions.

WHAT COMES NEXT

The practical next step is independent reproduction with clear baselines, ablations, and stress tests. For a developer, the useful follow-up is to map the paper's Navigation & LocomotionNavigationMoving through an environment toward a goal. assumptions onto a concrete Core ConceptsRobotA physical system with sensors and actuators that can observe the world and take actions. stack, then test the smallest version of the method that could run end to end.

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