MOBILE-MANIPULATIONCURRENT2026-04-28

ANCHOR: A Physically Grounded Closed-Loop Framework for Robust Home-Service Mobile Manipulation

Jinhao Jiang, Shengyu Fang, Sibo Zuo, Yujie Tang, Yirui Li

This paper solves the 'arrived but inoperable' problem in Manipulation & TasksMobile manipulationA robot both moves around and manipulates objects.—where robots navigate to objects but can't actually manipulate them due to geometry mismatches. ANCHOR grounds symbolic Core ConceptsTaskThe job the robot is supposed to complete, such as pick-and-place, navigation, or drawer opening. plans in verifiable physical observations and uses hierarchical Modern Robot LearningFailure recoveryA system’s ability to detect and recover from errors. to achieve 71.7% Data, Distributions & Training IssuesTask successWhether the robot completed the task correctly. in unseen homes, compared to 53.3% for prior methods. Developers can use this framework to build more reliable home robots that gracefully recover from local failures instead of Control & PlanningReplanningUpdating the plan when something changes or goes wrong. globally.

THE PROBLEM

This paper focuses on Manipulation & TasksMobile manipulationA robot both moves around and manipulates objects.. This paper solves the 'arrived but inoperable' problem in Manipulation & TasksMobile manipulationA robot both moves around and manipulates objects.—where robots navigate to objects but can't actually manipulate them due to geometry mismatches. ANCHOR grounds symbolic Core ConceptsTaskThe job the robot is supposed to complete, such as pick-and-place, navigation, or drawer opening. plans in verifiable physical observations and uses hierarchical Modern Robot LearningFailure recoveryA system’s ability to detect and recover from errors. to achieve 71.7% Data, Distributions & Training IssuesTask successWhether the robot completed the task correctly. in unseen homes, compared to 53.3% for prior methods. Developers can use this framework to build more reliable home robots that gracefully recover from local failures instead of Control & PlanningReplanningUpdating the plan when something changes or goes wrong. globally. 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 Manipulation & TasksMobile manipulationA robot both moves around and manipulates objects.. Start here because it defines what success means and which assumptions the rest of the method inherits.

2

Core method

This paper solves the 'arrived but inoperable' problem in Manipulation & TasksMobile manipulationA robot both moves around and manipulates objects.—where robots navigate to objects but can't actually manipulate them due to geometry mismatches. ANCHOR grounds symbolic Core ConceptsTaskThe job the robot is supposed to complete, such as pick-and-place, navigation, or drawer opening. plans in verifiable physical observations and uses hierarchical Modern Robot LearningFailure recoveryA system’s ability to detect and recover from errors. to achieve 71.7% Data, Distributions & Training IssuesTask successWhether the robot completed the task correctly. in unseen homes, compared to 53.3% for prior methods. Developers can use this framework to build more reliable home robots that gracefully recover from local failures instead of Control & PlanningReplanningUpdating the plan when something changes or goes wrong. globally. 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

This paper solves the 'arrived but inoperable' problem in Manipulation & TasksMobile manipulationA robot both moves around and manipulates objects.—where robots navigate to objects but can't actually manipulate them due to geometry mismatches. ANCHOR grounds symbolic Core ConceptsTaskThe job the robot is supposed to complete, such as pick-and-place, navigation, or drawer opening. plans in verifiable physical observations and uses hierarchical Modern Robot LearningFailure recoveryA system’s ability to detect and recover from errors. to achieve 71.7% Data, Distributions & Training IssuesTask successWhether the robot completed the task correctly. in unseen homes, compared to 53.3% for prior methods. Developers can use this framework to build more reliable home robots that gracefully recover from local failures instead of Control & PlanningReplanningUpdating the plan when something changes or goes wrong. globally.

WHY DEVELOPERS SHOULD CARE

This paper solves the 'arrived but inoperable' problem in Manipulation & TasksMobile manipulationA robot both moves around and manipulates objects.—where robots navigate to objects but can't actually manipulate them due to geometry mismatches. ANCHOR grounds symbolic Core ConceptsTaskThe job the robot is supposed to complete, such as pick-and-place, navigation, or drawer opening. plans in verifiable physical observations and uses hierarchical Modern Robot LearningFailure recoveryA system’s ability to detect and recover from errors. to achieve 71.7% Data, Distributions & Training IssuesTask successWhether the robot completed the task correctly. in unseen homes, compared to 53.3% for prior methods. Developers can use this framework to build more reliable home robots that gracefully recover from local failures instead of Control & PlanningReplanningUpdating the plan when something changes or goes wrong. globally.

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 Manipulation & TasksMobile manipulationA robot both moves around and manipulates objects. 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.

RELATED PAPERS