Research Article
An Efficient Online Multiparty Interactive Medical Prediagnosis Scheme with Privacy Protection
Algorithm 2
Preprocessing for medical instances.
Input: disease , medical vector (or ), feature weight | vector . | Output: the preprocessed vector , (or ). | 1: Generate two large prime numbers and a random number (or ) and satisfy , | and (or ); | 2: The feature weight is assigned to get , | (or ); | 3: The vector value is iteratively transformed to get | , | (or ); | 4: The vector is expanded forward to get | , | (or ); | 5:for to do | 6: Generate a random number (or ) and satisfy ; | 7: if do | 8: (or ); | 9: else do | 10: (or ); | 11: end if | 12:end for | 13: return (or ). |
|