摘要：

Abstract:

【Purpose/significance】The influence of user's forwarding habits and information preference differences on the scope of in⁃

formation diffusion is studied and puts forward corresponding suggestions in this paper.【Method/process】The new model which in⁃

cludes three kinds of unknown nodes is proposed ,compared the difference between WS network and BA network when diffusion pro⁃

cess was finished. The effects of probabilities, the proportion of unknown nodes and forwarding threshold are analyzed.【Result/conclu⁃

sion】As the network degree is increased, the advantage of two types of nodes in BA network is decreased gradually until become disad⁃

vantage, and there is almost no difference in the end; only one kind of unknown users occupy the proportion advantage in the network,

the forwarding probability of such users is changed have a greater impact on the proportion of known nodes and hesitant nodes; but the

proportion of hesitant nodes is increased and then it is decreased with the increase of forwarding probability gradually; when the net⁃

work degree is smaller, the proportion of known information nodes is decreased as decrease the proportion of unknown nodes who like

to forward information and increase the forwarding threshold, but the result is opposite when the degree is bigger. The proportion of

hesitant nodes is decreased with the increase of forwarding threshold.【Innovation/limitation】The influence of different preferences of

information content and forwarding habits on information diffusion is considered, but not the influence of factors such as the change of

information novelty with time on the forwarding probability and the different influence of a spreader node on different unknown infor⁃

mation nodes.