Chapter 11 Flashcards
The global mapping of users, organizations, and other objects/products/events and how they are connected (via actions)
Social graph
Two components of social network analyses
Nodes - on which relationships act (vertices)
Edges - relationships among nodes (links) can be directed (1-way) or undirected (2-way)
Sum of shortest node paths among members of a cluster “how tight the group is”
Cohesion (group)
Number of connections in the group as percent of total possible connections “robustness”
Density (group)
Number of direct connections a member has with other members of the group (usually direction-to only) “importance of this node or group”
Centrality
How many shortest paths between nodes this node is on “facilitates connections”
Betweenness (node)
Below average centrality
Peripheral
Above average centrality
Central connector
Above average betweenness
Broker
How many different relationships are there between a pair “relationship strength”
Multiplexity (pair)
The extent to which two actors reciprocate each other’s friendship or other interaction
Mutuality/reciprocity (Pair)
The minimum number of ties required to connect two particular actors - the idea behind “six degrees of separation”
Distance (pair)
A measure of the completeness of relational triads. If A-B and A-C have strong ties then B-C will have weak or strong ties
Network closure (triad)
A group in which every individual is directly tied to every other individual
Clique (group)
The absence of ties between two parts of a network - sometimes a source of a business opportunity
Structural holes (group)
