Efficient Two-Step Protocol and Its Discriminative Feature Selections in Secure Similar Document Detection

Algorithm 3

Modification of Line of SSDD-FS to implement SSDD-RP.

(1-1) and are -dimensional document vectors.

(1-2) Alice randomly chooses dimensions, (), and sends them to Bob.

(1-3) and are -dimensional feature vectors extracted from and by using those

   indexes. // , , .