Research On Community Detection And Resource Sharing Mechanism In Social Networks

With the widespread application of social networks,more and more people take part in the information transmission and acquisition in social networks.Nowadays,online social software,such as Facebook,Twitter and Sina Weibo,bring new energy to the application research of social networks due to the number of users and the capacity of information transmission increase rapidly.In recent years,the study of social network(SN)has received increased attention.the main research of this paper is that the personal willingness has an important impact on the community structures detection and information transmission.And this paper,we propose an autonomous resource request transaction scheme based on block chain in social network,which is used to disseminate the digital resources with copyright permission through the community.Personal willingness is one of the most important factors influencing the construction of social community and the information dissemination in social network.This paper proposes a social community detection and information dissemination scheme based on personal willingness in social network.In the proposed scheme,the social community detection algorithm extracts the node attributes,then uses the modularity degree,the interest degree and the personal willingness to sophisticatedly detect social community;also,the information dissemination method is based on the exponential model,which constructs the feature vector by the edge feature and the node feature,the willingness vector by the personal willingness and the community willingness,and the basic relationship by the dissemination probability and dissemination delay.In social network,user's requirements and interpersonal relationships become very rich,thus social network can quickly disseminate various information to users through some social software.Then it also produces the direct contradiction of copyright control and free sharing for network digital resources.Based on the block chain technology,the proposed scheme changes the traditional method of charging and can provide the reliability and fairness for every transaction of digital resource.In the proposed scheme,the digital resources can autonomously be shared by payment through social community,based on block chain technology.And the proposed scheme provides an incentive mechanism to encourage the community members to disseminate the digital resources in smart contract.In this paper,The experiment is carries out verification of community detection and information dissemination,experimental results show that our proposed scheme can ensure the stability and reliability of social community detection,and add the initiative and effectiveness of information dissemination among users.In this paper,the security analysis of the social network community resource request mechanism of the block chain is carried out,and the security loopholes and how the mechanism can be effectively prevented are fully analyzed,and the effectiveness and security of the mechanism are ensured.