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David Surovik

6 accepted papers

2024

Equivariant Diffusion Policy

CoRL 2024poster

Recent work has shown diffusion models are an effective approach to learning the multimodal distributions arising from demonstration data in behavior cloning. However, a drawback of this approach is the need to learn a denoising function, which is significantly more complex than learning an explicit…

Cited by 26SourcecodeScholar
2021

Receding-Horizon Perceptive Trajectory Optimization for Dynamic Legged Locomotion with Learned Initialization

ICRA 2021poster

To dynamically traverse challenging terrain, legged robots need to continually perceive and reason about upcoming features, adjust the locations and timings of future footfalls and leverage momentum strategically. We present a pipeline that enables flexibly-parametrized trajectories for perceptive a…

Cited by 39SourceScholar
2020

First Steps: Latent-Space Control with Semantic Constraints for Quadruped Locomotion

IROS 2020poster

Traditional approaches to quadruped control frequently employ simplified, hand-derived models. This significantly reduces the capability of the robot since its effective kinematic range is curtailed. In addition, kinodynamic constraints are often non-differentiable and difficult to implement in an o…

Cited by 12SourceScholar
2020

Learning an Expert Skill-Space for Replanning Dynamic Quadruped Locomotion over Obstacles

CoRL 2020

Function approximators are increasingly being considered as a tool for generating robot motions that are temporally extended and express foresight about the scenario at hand. While these longer behaviors are often necessary or beneficial, they also induce multimodality in the decision space, which c

Cited by 0SourcePDFScholar
2020

Reliable Trajectories for Dynamic Quadrupeds using Analytical Costs and Learned Initializations

ICRA 2020poster

Dynamic traversal of uneven terrain is a major objective in the field of legged robotics. The most recent model predictive control approaches for these systems can generate robust dynamic motion of short duration; however, planning over a longer time horizon may be necessary when navigating complex…

Cited by 41SourceScholar