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Peter Pastor

8 accepted papers

2023

Deep RL at Scale: Sorting Waste in Office Buildings with a Fleet of Mobile Manipulators

RSS 2023poster

We describe a system for deep reinforcement learning of robotic manipulation skills applied to a large-scale real-world task: sorting recyclables and trash in office buildings. Real-world deployment of deep RL policies requires not only effective training algorithms, but the ability to bootstrap rea…

Cited by 30SourcePDFScholar
2022

Do As I Can, Not As I Say: Grounding Language in Robotic Affordances

CoRL 2022oral

Large language models can encode a wealth of semantic knowledge about the world. Such knowledge could be extremely useful to robots aiming to act upon high-level, temporally extended instructions expressed in natural language. However, a significant weakness of language models is that they lack real…

Cited by 1747SourcecodeScholar
2020

Quantile QT-Opt for Risk-Aware Vision-Based Robotic Grasping

RSS 2020poster

The distributional perspective on reinforcement learning (RL) has given rise to a series of successful Q-learning algorithms, resulting in state-of-the-art performance in arcade game environments. However, it has not yet been analyzed how these findings from a discrete setting translate to complex p…

Cited by 65SourcePDFScholar
2019

Learning Probabilistic Multi-Modal Actor Models for Vision-Based Robotic Grasping

ICRA 2019poster

Many previous works approach vision-based robotic grasping by training a value network that evaluates grasp proposals. These approaches require an optimization process at run-time to infer the best action from the value network. As a result, the inference time grows exponentially as the dimension of…

Cited by 23SourceScholar
2018

Scalable Deep Reinforcement Learning for Vision-Based Robotic Manipulation

CoRL 2018

In this paper, we study the problem of learning vision-based dynamic manipulation skills using a scalable reinforcement learning approach. We study this problem in the context of grasping, a longstanding challenge in robotic manipulation. In contrast to static learning behaviors that choose a grasp

Cited by 0SourcePDFScholar
2018

Using Simulation and Domain Adaptation to Improve Efficiency of Deep Robotic Grasping

ICRA 2018poster

Instrumenting and collecting annotated visual grasping datasets to train modern machine learning algorithms can be extremely time-consuming and expensive. An appealing alternative is to use off-the-shelf simulators to render synthetic data for which ground-truth annotations are generated automatical…

Cited by 827SourceScholar
2017

End-to-End Learning of Semantic Grasping

CoRL 2017

We consider the task of semantic robotic grasping, in which a robot picks up an object of a user-specified class using only monocular images. Inspired by the two-stream hypothesis of visual reasoning, we present a semantic grasping framework that learns object detection, classification, and grasp pl

Cited by 0SourcePDFScholar
2015

Data-Driven Online Decision Making for Autonomous Manipulation

RSS 2015poster

One of the main challenges in autonomous manipulation is to generate appropriate multi-modal reference trajectories that enable feedback controllers to compute control commands that compensate for unmodeled perturbations and therefore to achieve the task at hand. We propose a data-driven approach to…

Cited by 79SourcePDFScholar