| (1) | Start |
| (2) | Calculate size of DFILE, [Row, Col] = size (DFILE) |
| (3) | Label Extraction from DFILE |
| (4) | All Label = []//Create a blank matrix to store Labels from DFILE |
| (5) | For I in range (DFILE (Row)) |
| (6) | Label (I) = DFILE (I, Col) |
| (7) | If Label (I) not belongs to Label |
| | (a) All Label (Count) = Label (I) |
| (8) | End–If |
| (9) | End–For |
| (10) | Convert all Labels into five generic labels according to subclass |
| (11) | Unique Label = [] |
| (12) | For I in range (D FILE (Row)) |
| (13) | Label (I) = All Label (I) |
| (14) | If Label (I) ε {back, Neptune, smurf′, teardrop, pod, land} |
| | a Unique Label (Count) = DoS |
| (15) | Else If Label (I) ε {warezclient, guess_passwd, warezmaster, imap, ftp_write, multihop, phf, spy} |
| | (a) Unique Label (Count) = R2L |
| (16) | Else If Label (I) ε {buffer_overflow, rootkit, loadmodule} |
| | (a) Unique Label (Count) = U2R |
| (17) | Else If Label (I) ε {satan, ipsweep, portsweep, nmap} |
| | (a) Unique Label (Count) = Probe |
| (18) | Else |
| | (a) Unique Label (Count) = Normal |
| (19) | End–If |
| (20) | End–For |
