Title
Representing Multi-Robot Structure through Multimodal Graph Embedding for the Selection of Robot Teams
Abstract
Multi-robot systems of increasing size and complexity are used to solve large-scale problems, such as area exploration and search and rescue. A key decision in human-robot teaming is dividing a multi-robot system into teams to address separate issues or to accomplish a task over a large area. In order to address the problem of selecting teams in a multi-robot system, we propose a new multimodal graph embedding method to construct a unified representation that fuses multiple information modalities to describe and divide a multi-robot system. The relationship modalities are encoded as directed graphs that can encode asymmetrical relationships, which are embedded into a unified representation for each robot. Then, the constructed multimodal representation is used to determine teams based upon unsupervised learning. We perform experiments to evaluate our approach on expert-defined team formations, large-scale simulated multi-robot systems, and a system of physical robots. Experimental results show that our method successfully decides correct teams based on the multifaceted internal structures describing multi-robot systems, and outperforms baseline methods based upon only one mode of information, as well as other graph embedding-based division methods.
Year
DOI
Venue
2020
10.1109/ICRA40945.2020.9197389
ICRA
DocType
Volume
Issue
Conference
2020
1
Citations 
PageRank 
References 
3
0.41
22
Authors
3
Name
Order
Citations
PageRank
brian reily1544.35
Christopher Reardon2739.46
Hao Zhang318923.73