Title
Low rank methods for multiple network alignment.
Abstract
Multiple network alignment is the problem of identifying similar and related regions in a given set of networks. While there are a large number of effective techniques for pairwise problems with two networks that scale in terms of edges, these cannot be readily extended to align multiple networks as the computational complexity will tend to grow exponentially with the number of networks.In this paper we introduce a new multiple network alignment algorithm and framework that is effective at aligning thousands of networks with thousands of nodes. The key enabling technique of our algorithm is identifying an exact and easy to compute low-rank tensor structure inside of a principled heuristic procedure for pairwise network alignment called IsoRank. This can be combined with a new algorithm for $k$-dimensional matching problems on low-rank tensors to produce the alignment. We demonstrate results on synthetic and real-world problems that show our technique (i) is as good or better in terms of quality as existing methods, when they work on small problems, while running considerably faster and (ii) is able to scale to aligning a number of networks unreachable by current methods. We show in this paper that our method is the realistic choice for aligning multiple networks when no prior information is present.
Year
Venue
Field
2018
arXiv: Social and Information Networks
Data mining,Pairwise comparison,Tensor,Computer science,Algorithm,Network alignment,Heuristic procedure,Computational complexity theory
DocType
Volume
Citations 
Journal
abs/1809.08198
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Huda Nassar1103.26
Georgios Kollias242.12
Ananth Grama31812136.25
David F. Gleich491957.23