This book constitutes the refereed proceedings of the 22nd Australasian Joint Conference on
Artificial Intelligence AI 2009 held in Melbourne Australia in December 2009. The 68
revised full papers presented were carefully reviewed and selected from 174 submissions. The
papers are organized in topical sections on agents AI applications computer vision and image
processing data mining and statistical learning evolutionary computing game playing
knowledge representation and reasoning natural language and speech processing soft computing
and user modelling.
