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Vien Anh Ngo

6 accepted papers

2025

Efficient Off-Policy Learning for High-Dimensional Action Spaces

ICLR 2025poster

Existing off-policy reinforcement learning algorithms often rely on an explicit state-action-value function representation, which can be problematic in high-dimensional action spaces due to the curse of dimensionality. This reliance results in data inefficiency as maintaining a state-action-value fu…

Cited by 0SourcePDFScholar
2025

Geometry-aware RL for Manipulation of Varying Shapes and Deformable Objects

ICLR 2025oral

Manipulating objects with varying geometries and deformable objects is a major challenge in robotics. Tasks such as insertion with different objects or cloth hanging require precise control and effective modelling of complex dynamics. In this work, we frame this problem through the lens of a heterog…

2025

How Many Tokens Do 3D Point Cloud Transformer Architectures Really Need?

NeurIPS 2025poster

Recent advances in 3D point cloud transformers have led to state-of-the-art results in tasks such as semantic segmentation and reconstruction. However, these models typically rely on dense token representations, incurring high computational and memory costs during training and inference. In this wor…

Cited by 0SourcecodeScholar
2023

SA6D: Self-Adaptive Few-Shot 6D Pose Estimator for Novel and Occluded Objects

CoRL 2023poster

To enable meaningful robotic manipulation of objects in the real-world, 6D pose estimation is one of the critical aspects. Most existing approaches have difficulties to extend predictions to scenarios where novel object instances are continuously introduced, especially with heavy occlusions. In this…

Cited by 6SourceScholar
2022

Deep Black-Box Reinforcement Learning with Movement Primitives

CoRL 2022poster

Episode-based reinforcement learning (ERL) algorithms treat reinforcement learning (RL) as a black-box optimization problem where we learn to select a parameter vector of a controller, often represented as a movement primitive, for a given task descriptor called a context. ERL offers several distinc…

Cited by 29SourcecodeScholar
2021

Differentiable Trust Region Layers for Deep Reinforcement Learning

ICLR 2021poster

Trust region methods are a popular tool in reinforcement learning as they yield robust policy updates in continuous and discrete action spaces. However, enforcing such trust regions in deep reinforcement learning is difficult. Hence, many approaches, such as Trust Region Policy Optimization (TRPO) a…