手法を比較

	Structural Equivalence	Positional Analysis
分野	Sociology	Sociology
系統	Process / pipeline	Process / pipeline
提唱年	1971	1976
提唱者	François Lorrain & Harrison White	Harrison White, Ronald Burt, and colleagues
種類	Equivalence relation grouping actors with identical tie patterns	Framework for identifying network positions and the roles among them
原典	Lorrain, F., & White, H. C. (1971). Structural equivalence of individuals in social networks. The Journal of Mathematical Sociology, 1(1), 49–80.	Burt, R. S. (1976). Positions in networks. Social Forces, 55(1), 93–122.
別名	structural equivalence analysis, positional equivalence, Euclidean equivalence of actors, equivalence classes	role analysis, positional role analysis, network role and position analysis, regular equivalence analysis
関連	5	5
概要	Structural equivalence identifies actors who occupy the same position in a network because they have identical ties to identical others. Defined by François Lorrain and Harrison White in 1971, it formalizes the idea that two people are interchangeable in the social structure when they relate to exactly the same set of third parties, and it provides the foundation for partitioning networks into positions and building blockmodels.	Positional analysis is the network-analytic program that identifies the positions actors occupy — sets of actors equivalent in their relational patterns — and characterizes the system of roles that links those positions. Growing out of Harrison White's structuralism and Ronald Burt's operationalization in the 1970s, it treats the social structure as a small set of positions and the role relations among them, rather than as a collection of individual actors.