Title
Synthesizing manipulation sequences for under-specified tasks using unrolled Markov Random Fields
Abstract
Many tasks in human environments require performing a sequence of navigation and manipulation steps involving objects. In unstructured human environments, the location and configuration of the objects involved often change in unpredictable ways. This requires a high-level planning strategy that is robust and flexible in an uncertain environment. We propose a novel dynamic planning strategy, which can be trained from a set of example sequences. High level tasks are expressed as a sequence of primitive actions or controllers (with appropriate parameters). Our score function, based on Markov Random Field (MRF), captures the relations between environment, controllers, and their arguments. By expressing the environment using sets of attributes, the approach generalizes well to unseen scenarios. We train the parameters of our MRF using a maximum margin learning method. We provide a detailed empirical validation of our overall framework demonstrating successful plan strategies for a variety of tasks.
Year
DOI
Venue
2014
10.1109/IROS.2014.6942972
IROS
Keywords
Field
DocType
under-specified tasks,dynamic planning strategy,manipulation sequences synthesis,path planning,maximum margin learning method,manipulators,markov processes,mrf,unrolled markov random fields
Computer vision,Random field,Markov random field,Computer science,Simulation,Markov chain,Dynamic planning,Artificial intelligence,Score,Machine learning
Conference
ISSN
Citations 
PageRank 
2153-0858
5
0.43
References 
Authors
32
3
Name
Order
Citations
PageRank
Jaeyong Sung139514.51
Bart Selman28355913.69
Ashutosh Saxena34575227.88