1) Lightweight Expert System: The lightweight expert system
(LES) lies at the center of ADIOS and provides the
intelligence that drives the IDS. This LES is where the machine
reasoning and inferencing happens and it is from here that
judgements are made regarding suspicious network activity.
The LES takes input directly from all other modules except
the watchdog system. The LES passes data to and from the
majority voting system and memory resident table.