In order to improve the publishing security level of sensitive data of digital library?s virtualization community, this study uses security grouping strategy of graph clustering to group users? sensitive data, greatly improves the security of releasing sensitive data. This article first summarized digital library?s application service structure, introduced distribution system of sensitive data simply, detailed analyzed the related definitions of security grouping of the graph clustering and calculation method of generalization information loss, finally got available sensitive data. Experimental results show that anti-attack of sensitive data processed by the policy has been improved significantly, has certain research value.
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