Artificial intelligence has historically been limited to the performan
ce of set functions in controlled environments. However, the concept o
f artificial intelligence is changing to include aspects of complex in
telligence such as unsupervised learning. At last month's ANZAAS Congr
ess, Cliff Hooker and Bruce Penfold described how neural networks base
d on the structure of the brain can learn to interact dynamically in a
changing environment.