手法を比較

	Structural Equivalence	Blockmodeling
分野	Sociology	Sociology
系統	Process / pipeline	Process / pipeline
提唱年	1971	1976
提唱者	François Lorrain & Harrison White	Harrison White, Scott Boorman & Ronald Breiger
種類	Equivalence relation grouping actors with identical tie patterns	Network partitioning into positions and a reduced role structure
原典	Lorrain, F., & White, H. C. (1971). Structural equivalence of individuals in social networks. The Journal of Mathematical Sociology, 1(1), 49–80.	White, H. C., Boorman, S. A., & Breiger, R. L. (1976). Social structure from multiple networks. I. Blockmodels of roles and positions. American Journal of Sociology, 81(4), 730–780.
別名	structural equivalence analysis, positional equivalence, Euclidean equivalence of actors, equivalence classes	block modeling, blockmodel analysis, generalized blockmodeling, CONCOR
関連	5	4
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.	Blockmodeling is a family of methods that simplify a social network by partitioning its actors into positions — groups of actors who are equivalent in their pattern of ties — and summarizing the relations between positions as a compact image, or reduced role structure. Introduced by Harrison White, Scott Boorman, and Ronald Breiger in 1976, it shifts attention from individuals to the structural roles they occupy.