simple graphs;
random graphs;
degree distribution;
generating algorithms;
configuration model;
D O I:
10.1007/s10955-006-9168-x
中图分类号:
O4 [物理学];
学科分类号:
0702 ;
摘要:
Let F be a probability distribution with support on the non-negative integers. Four methods for generating a simple undirected graph with (approximate) degree distribution F are described and compared. Two methods are based on the so called configuration model with modifications ensuring a simple graph, one method is an extension of the classical Erdos-Renyi graph where the edge probabilities are random variables, and the last method starts with a directed random graph which is then modified to a simple undirected graph. All methods are shown to give the correct distribution in the limit of large graph size, but under different assumptions on the degree distribution F and also using different order of operations.