High Efficiency Spam Filtering: A Manifold Learning-Based Approach

Table 5

Different manifold learning algorithms’ time consumption.

Datasets	Isomap + SVM	LLE + SVM	LPP + SVM	SVM + LEP	SVM + LEP + Struc
EnronSpam	6468 s	894 s	965 s	983 s	1312 s
PU1	1683 s	247 s	229 s	236 s	285 s
GenSpam	5478 s	608 s	615 s	634 s	715 s