Arti?cial immune systems (AIS) is a diverse and maturing area of research that bridges the
disciplines of immunology and engineering. The scope of AIS ranges
fromimmune-inspiredalgorithmsandengineeringsolutionsinsoftwareandha- ware to the understanding
of immunology through modeling and simulation of immune system concepts. AIS algorithms have
been applied to a wide variety of applications including computer security fault tolerance
data mining and optimization. In addition theoretical aspects of arti?cial and real immune s-
tems have been the subject of mathematical and computational models and simulations. The 8th
InternationalConference on AIS (ICARIS 2009)built on the success of previous years providing a
forum for a diverse group of AIS researchers to present and discuss their latest results and
advances. After two years outside Europe ICARIS 2009 returned to England the venue for the
?rst ICARIS back in 2002. This year's conference was located in the historic city of York and
was held in St. William's College the conference venue of York Minster northern Europe's
largest Gothic cathedral.