Dimension Reduction Technique Based on Supervised Autoencoder for Intrusion Detection of Industrial Control Systems

Table 1

Features and descriptions.

Feature	Description
PA1:VH–PA3:VH	Phase A–C voltage phase angle
PM1:V–PM3:V	Phase A–C voltage phase magnitude
PA4:IH–PA6:IH	Phase A–C current phase angle
PM4:I–PM6:I	Phase A–C current phase magnitude
PA7:VH–PA9:VH	Pos.–Neg.–zero voltage phase angle
PM7:V–PM9:V	Pos.–Neg.–zero voltage phase magnitude
PA10:VH–PA12:VH	Pos.–Neg.–zero current phase angle
PM10:V–PM12:V	Pos.–Neg.–zero current phase magnitude
F	Frequency for relays
DF	Frequency delta (dF/dt) for relays
PA:Z	Appearance impedance for relays
PA:ZH	Appearance impedance angle for relays
S	Status flag for relays