Cited by 26Robot Manipulation and LearningMultimodal Machine Learning ApplicationsReinforcement Learning in Robotics

Deep multimodal embedding: Manipulating novel objects with point-clouds, language and trajectories

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Sung, Jaeyong, Lenz, Ian, Saxena, Ashutosh·2017·2017 IEEE International Conference on Robotics and Automation (ICRA)

Abstract

A robot operating in a real-world environment needs to perform reasoning over a variety of sensor modalities such as vision, language and motion trajectories. However, it is extremely challenging to manually design features relating such disparate modalities. In this work, we introduce an algorithm that learns to embed point-cloud, natural language, and manipulation trajectory data into a shared embedding space with a deep neural network. To learn semantically meaningful spaces throughout our network, we use a loss-based margin to bring embeddings of relevant pairs closer together while driving less-relevant cases from different modalities further apart. We use this both to pre-train its lower layers and fine-tune our final embedding space, leading to a more robust representation. We test our algorithm on the task of manipulating novel objects and appliances based on prior experience with other objects. On a large dataset, we achieve significant improvements in both accuracy and inference time over the previous state of the art. We also perform end-to-end experiments on a PR2 robot utilizing our learned embedding space.

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Authors
Sung, J., Lenz, I., & Saxena, A.
Affiliations
Cornell University (US)
Venue
2017 IEEE International Conference on Robotics and Automation (ICRA)
Publisher
IEEE
Published
2017-05
Pages
2794-2801
ISSN
1050-4729 (ISSN-L)
OpenAlex
W2182599745
Cited by
26
References
41
Citations by year
2023: 4 · 2022: 4 · 2021: 4 · 2020: 4 · 2019: 5 · 2018: 3 · 2017: 1 · 2016: 1
FWCI
5.43
Type
conference paper
Language
en
Open access
Locations
  • Proceedings - IEEE International Conference on Robotics and Automation/Proceedings (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Funders
National Science Foundation
Topics
  • Physical Sciences › Engineering › Control and Systems Engineering › Robot Manipulation and Learning
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Multimodal Machine Learning Applications
  • Physical Sciences › Computer Science › Artificial Intelligence › Reinforcement Learning in Robotics
Keywords
multimodal embeddings, point clouds, natural language, shared embedding space, margin-based loss, pre-training and fine-tuning, robotic manipulation, PR2 robot

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