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Backbone: An R package for extracting the backbone of bipartite projections
Rachel Domagalski1, Zachary P Neal2, Bruce Sagan1
1Department of Mathematics, Michigan State University, East Lansing, Michigan, United States of America.
Abstract:
Bipartite projections are used in a wide range of network contexts including politics (bill co-sponsorship), genetics (gene co-expression), economics (executive board co-membership), and innovation (patent co-authorship). However, because bipartite projections are always weighted graphs, which are inherently challenging to analyze and visualize, it is often useful to examine the 'backbone,' an unweighted subgraph containing only the most significant edges. In this paper, we introduce the R package backbone for extracting the backbone of weighted bipartite projections, and use bill sponsorship data from the 114th session of the United States Senate to demonstrate its functionality.
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