Centrality
Watt's a Small World
Birds of a Feather
Two Mode
Potpourri
100
A simple node level measurement of neighborhood.
What is degree centrality?
100
He developed the first small world experiment.
Who is Stanley Milgram?
100
The tendency of individuals to associate and bond with similar others.
What is homophily?
100
Two-mode networks.
What kind of network describes ties between two sets of nodes at two different levels of analysis.
100
Subsets of actors.
What is a subgraph?
200
The greatest neighborhood distance.
What is eccentricity?
200
Friends of friends.
In Watt's terms what are two degrees away from us?
200
Individuals with similar social status characteristics are more likely to associate with each other than by chance.
What is status homophily?
200
A x A'
How is a G x G product matrix calculated?
200
The # of observed edges in network divided by the maximum possible edges.
What is density?
300
The shortest path between two points.
What is a geodesic?
300
Examples of small world networks.
What are power grids, neural networks, networks of biochemical reactions, interlocking corporate boards of directors, collaboration networks of scientists, and even movie actors.
300
A maximal connected subgraph.
What is a clique?
300
A visualization of a 2-mode network.
What is a bipartite graph?
300
Every actor is reachable from every other actor.
What is a component?
400
He is the "star" of the network.
The most central actor of the most centralized network.
400
Watts discusses a simple graph that has edges between random pairs of vertices.
What is a random graph?
400
The tendency to associate with others who think in similar ways.
What is value homophily?
400
The vertices are distributed in space and the edges are represented by circles enclosing subsets of vertices.
What is a hypergraph or dual hypergraph?
400
Removing a node creates a new component.
What is a cutpoint?
500
A node’s centrality is a function of its neighbors’ centrality.
What is eigenvector centrality?
500
Networks that display the six-degree-of-separation phenomenon in a large number of individuals.
What are small world networks?
500
Race.
What is the strongest differentiating characteristic of a social network?
500
Indicates how many events two actors are affiliated with.
What are the off-diagonal elements of a G x G matirx.
500
Removing a link creates a new component.
What is a bridge?
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