Distance: The minimum number of ties required to connect two particular actors, as popularized by Stanley Milgram's small world experiment and the idea of 'six degrees of separation'.
Structural holes: The absence of ties between two parts of a network.
A positive edge between two nodes denotes a positive relationship (friendship, alliance, dating) and a negative edge between two nodes denotes a negative relationship (hatred, anger).
Signed social network graphs can be used to predict the future evolution of the graph.
Geology Labs On-Line was initiated in 1999 to develop Web-based activities which enhance the learning and teaching of earth science from middle school through college classrooms.
Exploration of the data is done through displaying nodes and ties in various layouts, and attributing colors, size and other advanced properties to nodes.
Tie Strength: Defined by the linear combination of time, emotional intensity, intimacy and reciprocity (i.e. Strong ties are associated with homophily, propinquity and transitivity, while weak ties are associated with bridges.
Groups are identified as 'cliques' if every individual is directly tied to every other individual, 'social circles' if there is less stringency of direct contact, which is imprecise, or as structurally cohesive blocks if precision is wanted.
According to balance theory, balanced graphs represent a group of people who are unlikely to change their opinions of the other people in the group.
Unbalanced graphs represent a group of people who are very likely to change their opinions of the people in their group.