Chapter4
Network Models
WHAT’S IN A NETWORK?
In this chapter, I am concerned with representations that have more structure than those discussed in chapters 2 and 3. These representations all have some kind of network structure. A network consists of nodes and links; for example, an airline may create a network to illustrate the routes it flies and the distances between cities it flies to. A network representation of this type is shown in Figure 4.1. The nodes in this diagram represent cities the airline flies to; each node is labeled with the name of the city it represents. The links represent flights that the airline makes; each link is labeled with the distance of the flight. This kind of network can be used to determine routes between cities ...
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