قارن الطرق

	Core-Periphery Analysis	Structural Equivalence
المجال	Sociology	Sociology
العائلة	Process / pipeline	Process / pipeline
سنة النشأة	2000	1971
صاحب الطريقة	Stephen Borgatti & Martin Everett	François Lorrain & Harrison White
النوع	Network partition into a dense core and a sparse periphery	Equivalence relation grouping actors with identical tie patterns
المصدر التأسيسي	Borgatti, S. P., & Everett, M. G. (2000). Models of core/periphery structures. Social Networks, 21(4), 375–395.	Lorrain, F., & White, H. C. (1971). Structural equivalence of individuals in social networks. The Journal of Mathematical Sociology, 1(1), 49–80.
الأسماء البديلة	core/periphery model, Borgatti-Everett core-periphery, core-periphery structure detection, coreness analysis	structural equivalence analysis, positional equivalence, Euclidean equivalence of actors, equivalence classes
ذات صلة	5	5
الملخص	Core/periphery analysis partitions a network into a densely interconnected core of actors and a sparse periphery whose members connect to the core but not to one another. Formalized by Borgatti and Everett, the method fits the observed adjacency matrix to an idealized block pattern — a fully connected core block, an empty periphery block, and core–periphery blocks of intermediate density — to test whether and how strongly a network exhibits this canonical mesoscale structure.	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.