International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 115 - Number 21 |
Year of Publication: 2015 |
Authors: Vaishali Bhorde, R.n.phursule |
10.5120/20272-2685 |
Vaishali Bhorde, R.n.phursule . Implementation of Multi-Level Trust in Privacy Preserving Data Mining against Non-Linear Attack. International Journal of Computer Applications. 115, 21 ( April 2015), 1-6. DOI=10.5120/20272-2685
The study of perturbation based Privacy Preserving Data Mining (PPDM) [1] [2] approaches introduces random perturbation that is number of changes made in the original data. The limitation of existing work is single level trust on data miners but proposed work is focus on perturbation based PPDM to multilevel trust. [1] When data owner sends number of perturbated copy to the trusted third party, adversary cannot find the original copy from the perturbated copy means the adversary diverse from original copy this is known as the diversity attack. To prevent diversity attack is main goal of Multilevel Trust in Privacy Preserving Data Mining (MLT-PPDM) services. [1]The different MLT-PPDM algorithms are used to produce noise into original data. In existing system by applying nonlinear collusion attack on MLT-PPDM approach, it is possible to reconstruct original data. In proposed system by applying masking noise linear transformation algorithm which produce noise into original data. When same nonlinear collusion attack is applied on proposed approach it cannot reconstruct original data means it preserve the privacy. That means existing system is limited only for linear attack. [1] But proposed system is working on the non-linear attack also. Linear attack is calculating average between all perturbated copies. Nonlinear attack is calculating minimum, maximum, median function estimation.