On The Use Of Negative Selection In An Artificial Immune System
Marc Ebner, Hans-Georg Breunig, Jürgen Albert · 2002
The natural immune system is very effective at protecting the body from diseases. Several researchers have analyzed the natural system and created artificial systems which copy mechanisms of the natural system in order to improve computer security. We suggest that the negative selection algorithm, which is at work in the natural system, might have been copied too closely. We argue against the use of negative selection if space is finite and self comprises only a small fraction of the available space or if space is infinite. We illustrate this on the problem of user authentication using keystroke analysis.