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Hanwen Ren

7 accepted papers

2026

Multi-Agent Monte Carlo Tree Search for Makespan-Efficient Object Rearrangement in Cluttered Spaces

ICRA 2026poster

Object rearrangement planning in complex, cluttered environments is a common challenge in warehouses, households, and rescue sites. Prior studies largely address monotone instances, whereas real-world tasks are often non-monotone—objects block one another and must be temporarily relocated to interme…

2025

Integrating Active Sensing and Rearrangement Planning for Efficient Object Retrieval from Unknown, Confined, Cluttered Environments

ICRA 2025

Retrieving target objects from unknown, confined spaces remains a challenging task that requires integrated, task-driven active sensing and rearrangement planning. Previous approaches have independently addressed active sensing and rearrangement planning, limiting their practicality in real-world sc

Cited by 2SourceScholar
2024

Language-guided Active Sensing of Confined, Cluttered Environments via Object Rearrangement Planning

ICRA 2024poster

Language-guided active sensing is a robotics sub-task where a robot with an onboard sensor interacts efficiently with the environment via object manipulation to maximize perceptual information, following given language instructions. These tasks appear in various practical robotics applications, such…

Cited by 1SourceScholar
2024

Multi-Stage Monte Carlo Tree Search for Non-Monotone Object Rearrangement Planning in Narrow Confined Environments

IROS 2024poster

Non-monotone object rearrangement planning in confined spaces such as cabinets and shelves is a widely occurring but challenging problem in robotics. Both the robot motion and the available regions for object relocation are highly constrained because of the limited space. This work proposes a Multi-…

Cited by 1SourceScholar
2024

Neural Rearrangement Planning for Object Retrieval from Confined Spaces Perceivable by Robot’s In-hand RGB-D Sensor

ICRA 2024poster

Rearrangement planning for object retrieval tasks from confined spaces is a challenging problem, primarily due to the lack of open space for robot motion and limited perception. Several traditional methods exist to solve object retrieval tasks, but they require overhead cameras for perception and a…

Cited by 3SourceScholar