An overview of previous editions of WAIM is maintained by DBLP and can be reached here. The list of WAIM editions previous to Jiuzhaigou is as follows: 

Event	Location	DBLP Link
10. WAIM 2009	Suzhou
9. WAIM 2008	Zhangjiajie
8. WAIM 2007	Huangshan
7. WAIM 2006	Hong Kong
6. WAIM 2005	Hangzhou
5. WAIM 2004	Dalian
4. WAIM 2003	Chengdu
3. WAIM 2002	Beijing
2. WAIM 2001	Xi'an
1. WAIM 2000	Shanghai