id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-018208-sc8j1ate	Qu, Bo	The Accuracy of Mean-Field Approximation for Susceptible-Infected-Susceptible Epidemic Spreading with Heterogeneous Infection Rates	2016-11-09		.txt	text/plain	4157	233	56	Moreover, given the same actual prevalence, NIMFA performs better in the cases: 1) when the variance of the i.i.d. infection rates is smaller (while the average is unchanged); 2) when the correlation between the infection rate and the nodal degree is positive. Our work suggests the conditions when the mean-field approach, in particular NIMFA, is more accurate in the approximation of the SIS epidemic with heterogeneous infection rates. In particular, we compare the average fraction y ∞ of infected nodes as a function of the effective infection rate τ computed by NIMFA to that obtained by the continuous-time simulations of the exact SIS model when the infection rates are heterogeneous but the recovery rate is the same for all nodes. In this paper, we aim to understand how the correlation influences the accuracy of NIMFA by comparing the average fraction y ∞ of infected nodes obtained by NIMFA and the simulations of the exact SIS model.	./cache/cord-018208-sc8j1ate.txt	./txt/cord-018208-sc8j1ate.txt