Social networks

Table of Contents......Page 1
Introduction: What's different about social network data?......Page 2
Nodes......Page 4
Populations, samples, and boundaries......Page 5
Modality and levels of analysis......Page 6
Full network methods......Page 7
Ego-centric networks (with alter connections)......Page 8
Ego-centric networks (ego only)......Page 9
Multiple relations......Page 10
Multiple-category nominal measures of relations:......Page 11
Grouped ordinal measures of relations:......Page 12
Interval measures of relations:......Page 13
A note on statistics and social network data......Page 14
Introduction to chapter 2......Page 18
Summary of chapter 2......Page 19
Graphs and Sociograms......Page 21
Levels of Measurement: Binary, Signed, and Valued Graphs......Page 22
Simplex or Multiplex Relations in the Graph......Page 23
Application questions for chapter 3......Page 24
What is a Matrix?......Page 26
The "Adjacency" Matrix......Page 27
Matrix Permutation, Blocks, and Images......Page 29
Doing Mathematical Operations on Matrices......Page 30
Matrix addition and matrix subtraction......Page 31
Matrix multiplication and Boolean matrix multiplication......Page 32
Summary of chapter 4......Page 35
Application questions for chapter 4......Page 36
Introduction: Basic Properties of Networks and Actors......Page 37
An Example......Page 38
Connections......Page 40
Size, density and degree......Page 41
Reachability......Page 44
Reciprocity and Transitivity......Page 45
Distance......Page 46
Simple graphs:......Page 47
Directed graphs:......Page 48
Diameter and Geodesic distance......Page 50
Flow, cohesion, and influence,......Page 52
Maximum flow:......Page 53
Hubbell and Katz cohesion:......Page 54
Taylor's Influence:......Page 55
Summary of chapter 5......Page 56
Application questions for chapter 5......Page 58
The several faces of power......Page 60
Degree:......Page 61
Betweenness:......Page 62
Degree centrality......Page 63
Closeness centrality......Page 65
Betweenness centrality......Page 66
Eigenvector of the geodesic distances......Page 68
Flow centrality......Page 70
The Bonacich power index......Page 72
Summary of chapter 6......Page 75
Application questions for chapter 6......Page 76
7. Cliques and Sub-Groups......Page 77
Cliques......Page 79
N-cliques......Page 81
N-Clans......Page 82
K-plexes......Page 84
Top-down Approaches......Page 85
Blocks and Cutpoints......Page 86
Lambda Sets and Bridges......Page 87
Factions......Page 88
Application questions for chapter 7......Page 90
Introduction to positions and roles......Page 92
Approaches to Network Positions and Social Roles......Page 93
Regular Equivalence......Page 94
Application questions for chapter 8......Page 95
Measuring structural similarity......Page 97
Pearson correlation coefficients......Page 100
Euclidean distances......Page 102
Percent of Exact Matches......Page 103
Jaccard coefficients......Page 104
CONCOR......Page 106
Tabu Search......Page 109
Factor (Principal components, actually) Analysis......Page 110
Multi-Dimensional Scaling......Page 113
Summary of chapter 9......Page 115
Uses of the concept......Page 117
Geodesic equivalence......Page 118
Tabu search......Page 119
The Star Network analyzed by geodesic equivalence......Page 120
The Line network analyzed by Maxsim......Page 121
The Knoke bureaucracies information exchange network analyzed by TABU......Page 122
Summary of chapter 10......Page 125
Uses of the concept......Page 127
Finding Equivalence Sets......Page 128
Categorical REGE for directed binary data (Knoke information exchange)......Page 131
Categorical REGE for geodesic distances (Padgett's marriage data)......Page 132
Continuous REGE for geodesic distances (Padgett's marriage data)......Page 134
The Knoke bureaucracies information exchange network analyzed by Tabu search......Page 136
Summary of chapter 11......Page 137
A Working Bibliography on Social Network Analysis Methods......Page 139