Find Bridging Edges in Networks
A bridge in a network is an edge whose removal increases the number of connected components. A local bridge in this Demonstration is defined as an edge whose removal increases by two or more the shortest path distances between nearby nodes. You can vary the number of nodes and edges, creating a new random network.
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S. Wasserman and K. Faust, Social Network Analysis: Methods and Applications, New York: Cambridge University Press, 1994.