Improved KNN Algorithm Based on Preprocessing of Center in Smart Cities

Table 5

The classification results of KNN^PK+.

	K value	Accuracy (%)	Classification time (s)
Hayes roth	2	98.1	0.03
Iris	2	982	0.034
Seeds	3	89.7	0.246
Pima Indians	3	90.1	0.987
Page blocks	3	91.7	8.489
Shuttle	6	89.6	977.46