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Article . 2019
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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
Robotics and Autonomous Systems
Article . 2019 . Peer-reviewed
License: Elsevier TDM
Data sources: Crossref
DBLP
Article . 2019
Data sources: DBLP
http://dx.doi.org/10.1016/j.ro...
Article
License: Elsevier TDM
Data sources: Sygma
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Deep effect trajectory prediction in robot manipulation

Authors: M. Yunus Seker; Ahmet Ercan Tekden; Emre Ugur;

Deep effect trajectory prediction in robot manipulation

Abstract

Abstract Imagining the consequences of one’s own actions, before and during their execution, allows the agents to choose actions based on their simulated performance, and to monitor the progress by comparing observed to simulated behavior. In this study, we propose a deep model that enables a robot to learn to predict the consequences of its manipulation actions from its own interaction experience on objects of various shapes. Given the top-down image of the object, the robot learns to predict the movement trajectory of the object during execution of a lever-up action performed with a screwdriver in a physics-based simulator. The prediction is realized in two stages; the system first computes a number of features from the object and then generates the complete motion trajectory of the center of mass of the object using Long Short Term Memory (LSTM) models. In the first step, we investigated use of various feature descriptors such as shape context that encodes a distributed representation of positions of the object boundary points, unsupervised features that are extracted from autoencoders, Convolutional Neural Network (CNN) based features that are conjointly trained with the LSTMs, and finally task-specific supervised features that are engineered to well-encode the underlying dynamics of the lever-up action. The models are trained in simulation with objects of varying edge numbers and tested in the simulated and the real world. Our deep and generic CNN-based LSTM model outperformed the predictors that use unsupervised representations such as shape descriptors or autoencoder features in the simulated test set. Additionally, it was shown to generalize well to novel object shapes that were not experienced during model training. Finally, our model was shown to perform well in predicting the consequences of lever-up actions generated by a screwdriver that was attached to the gripper of the real UR10 robot. We further showed that our system can predict qualitatively different trajectories of objects that roll off the table or tumble over as the result of lever-up action.

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Keywords

Predictive Models, Robot Learning, Convolutional Neural Networks, Manipulation, Long Short Term Memory

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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