A Research On Mechanism Of Hot Spot Information Dissemination In Online SNS

The dissemination of online social network breaks through in the barrier of traditional information communication, which makes people exchange and share information with high speed cross-regional. So many sorts of applications enhance communication among people observably, while the dissemination of false information such as plenty of rumors is bad for the society. This article mainly studies The hot spot’s dissemination of online social network on the basis of SIR model.1、Study on SIR epidemic model. This paper introduces the concept of the pushing hands node from the traditional SIR model because of important effect of it on SNS information dissemination,and researches the propagation of law of the top topic in the network caused by this kind of nodes, as well as how do they influence and control the social network information propagation. Using the You Tube data to build a social network topology,this article find that the spread of the node’s probability propagation is greater than 0.7 can be set to pushing hands node and which can be considered parameter that using target immune algorithm to suppress the information propagation,while it is greater than 0.2 can effectively inhibit the information propagation, and this numerical is the parameter that using very important people immunization strategy to suppress the information propagation.2 、 Study on inhibition of information dissemination. Two immunization strategy is mainly adopted for the online SNS: targeted immunization strategy and acquaintance immunization strategy. Basis on experiment two targeted immunization arithmetic optionally selects 1000 pushing hand nodes which transmission probability greater than 0.7 in the network, the degree of these nodes are so high that when we delete these nodes and node’s nodes, we can controlthe information dissemination in SNS effectively. While if we optionally select 100 nodes in network, and delete them with their friends, it can restrain the information dissemination in online SNS, which is acquaintance immunization strategy.The main achievements of this paper is finding the character of the hot spot information dissemination caused by pushing hand node in online SNS, and restrains its dissemination, which in favor of building a clean and harmonious online SNS culture.