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METHOD AND APPARATUS FOR DETECTING ANGLE-BASED PRIVACY PRESERVING OUTLIER
METHOD AND APPARATUS FOR DETECTING ANGLE-BASED PRIVACY PRESERVING OUTLIER
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机译:检测基于角度的隐私保护异常的方法和装置
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摘要
The subject having a high dimensional normal data generates a weight vector corresponding to a mapping matrix and a low dimensional data from the normal data through principal component analysis, and generates a cipher text for each row value of the mapping matrix. Then, the ciphertext and the weight vector are disclosed. Then, a device for checking an outlier for test data receives a secret key for the test data from a trusted subject, and then calculates a weight vector for the test data using the published ciphertext and the weight vector. The angle-based outlier factor (ABOF) is calculated using the weight vector of the test data and the published weight vector to determine whether the test data is an outlier.
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