Privacy-Preserving KNN Classification Algorithm for Smart Grid

Table 2

Comparison of privacy-preserving KNN algorithms.

Algorithm	Data privacy	Query privacy	Output privacy	Single cloud server	Computation cost
Samanthula et al. [10]	✓	✓	✓	✕
Liu et al. [11]	✓	✓	✓	✕
Li et al. [17]	✕	✓	✓	✓
Cheng et al. [18]	✕	✓	✓	✕
Yang et al. [19]	✕	✕	✕	✓
Yang et al. [22]	✓	✕	✓	✓
The PPKC algorithm	✓	✓	✓	✓