Civil Engineering Reference
In-Depth Information
Fig. 7
Process of growing scale-free network
typically connected to hub nodes, the result of preferential attachment. The next
section describes a methodology, based on graph theory, to create a system to
address social isolation, by exploiting the process of network creation.
3.5
Network Robustness and Graph Trees
Building a network begins with one node. Linking this node to other nodes
corresponds to the establishment of human relationships with others. However, we
must somehow solve the challenging problem of who should help establish such
relationships for isolated elderly people. The formulation of specific methodologies
for designing local communities as described in 3.2 is closely related to this
challenge.
A graph tree can be defined as a pattern of independent links which includes all
the relevant nodes but does not include linked circuits. Simply put, by forming a
tree, we can make contact with others simply by following the links of the tree.
Typically, multiple trees are incorporated into a single graph. We can select a
specific tree in the following manner: include in the tree a link between two strongly
bonded nodes and include in a co-tree a link between two weakly bonded nodes.
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