Chapter 6. Online Resources

The Bianconi-Barabási Model

Online Resource 6.1

The movie shows a growing network in which each new node acquires a randomly chosen fit- ness parameter at birth, indicated by the color of the node. Each new node chooses the nodes it links to following generalized preferential attachment (6.1), making a node’s growth rate proportional to its fitness. The node size is proportional to its degree, illustrating that with time the nodes with the highest fitness turn into the largest hubs. Video courtesy of Dashun Wang.

Bose-Einstein Condensation in Networks

Online Resource 6.2

The movie shows the time evolution of a growing network in which one node (purple) has a much higher fitness than the rest of the nodes. This high fitness node attracts most links, forcing the system to undergo a Bose-Einstein condensation. Video courtesy of Dashun Wang.