Effects of Resource Limitations and Cost Influences on Computer Virus Epidemic Dynamics and Tipping Points

Table 5

Parameters for eight scale-free networks built using different numbers of nodes and average vertex degrees.

	Barabási and Albert’ [2] scale-free networks
Description	SFN	SFN	SFN	SFN	SFN	SFN	SFN	SFN
	no. 1	no. 2	no. 3	no. 4	no. 5	no. 6	no. 7	no. 8
Number of nodes	1,000	1,000	2,000	2,000	10,000	10,000	20,000	20,000
Number of edges	2,000	4,000	4,000	8,000	20,000	40,000	40,000	80,000
Average vertex degrees	4	8	4	8	4	8	4	8
Exponent of power-law distribution	≈2.4	≈2.4	≈2.4	≈2.4	≈2.4	≈2.4	≈2.4	≈2.4
Average clustering coefficient	≈0.02	≈0.03	≈0.01	≈0.02	≈0.00	≈0.00	≈0.00	≈0.00
Average degree of separation	≈4.2	≈3.2	≈4.4	≈3.4	≈5.1	≈3.9	≈5.3	≈4.1