This book constitutes the refereed conference proceedings of the 9th International Conference
on Multi-disciplinary Trends in Artificial Intelligence MIWAI 2015 held in Fuzhou China in
November 2015. The 30 revised full papers presented together with 12 short papers were
carefully reviewed and selected from 83 submissions. The papers feature a wide range of topics
covering knowledge representation reasoning and management multi-agent systems data mining
and machine learning computer vision robotics AI in bioinformatics AI in security and
networks and other AI applications.