This book constitutes the proceedings of the second International Workshop on Advanced
Computational Intelligence (IWACI 2009) with a sequel of IWACI 2008 successfully held in Macao
China. IWACI 2009 provided a high-level international forum for scientists engineers and
educators to present state-of-the-art research in computational intelligence and related
fields. Over the past decades computational intelligence community has witnessed t- mendous
efforts and developments in all aspects of theoretical foundations archit- tures and network
organizations modelling and simulation empirical study as well as a wide range of
applications across different domains. IWACI 2009 provided a great platform for the community
to share their latest research results discuss critical future research directions stimulate
innovative research ideas as well as facilitate inter- tional multidisciplinary
collaborations. IWACI 2009 received 146 submissions from about 373 authors in 26 countries and
regions (Australia Brazil Canada China Chile Hong Kong India Islamic Republic of Iran
Japan Jordan Macao Malaysia Mexico Pakistan Philippines Qatar Republic of Korea
Singapore South Africa Sri Lanka Spain Taiwan Thailand UK USA Ve- zuela Vietnam and
Yemen) across six continents (Asia Europe North America South America Africa and Oceania).
Based on the rigorous peer reviews by the Program Committee members 52 high-quality papers
were selected for publication in this book with an acceptance rate of 36.3%. These papers
cover major topics of the theoretical research empirical study and applications of
computational intelligence.