期刊
SOCIAL NETWORKS
卷 23, 期 4, 页码 261-283出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0378-8733(01)00042-9
关键词
friendship; social network; peer influence; cohesion; methods
Sociologists have seen a dramatic increase in the size and availability of social network data. This represents a poverty of riches, however, since many of our analysis techniques cannot handle the resulting large (tens to hundreds of thousands of nodes) networks. In this paper, I provide a method for identifying dense regions within large networks based on a peer influence model. Using software familiar to most sociologists, the method reduces the network to a set of in position variables that can then be used in fast cluster analysis programs. The method is tested against simulated networks with a known small-world structure showing that the underlying clusters can be accurately recovered. I then compare the performance of the procedure with other subgroup detection algorithms on the MacRea and Gagnon prison friendship data and a larger adolescent friendship network, showing that the algorithm replicates other procedures for small networks and outperforms them on the larger friendship network. (C) 2001 Elsevier Science B.V. All rights reserved.
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