are essential to the quality of the program. We are grateful to Weiyi Meng, X. Sean Wang, Stratis D. Viglas, and Je?rey Xu Yu for their valuable help in leading and monitoring the discussions on our behalf. We also thank Jun Yang for his work in preparing the proceedings. Finally, we are deeply indebted to Yu Zhang and Mengya Tang, the Web Masters, who took on tremendous pain and extra work, and ably modi?ed, extended and maintained the conference management tool; for three long months they worked until late night every day, seven days a week; the necessary extension of the tool also received help from Kun Jing, Chengchao Xie, Shiqi Peng, Heng Wang, Cheng Jin and Ruizhi Ye; without their hardande?ectiveworkthe onlinediscussionswouldnothavebeen possible, among other things. October 2005 Wenfei Fan, Zhaohui Wu Program Committee Co-chairs WAIM 2005 Dedication: Hongjun Lu (1945 2005) On behalf of the Program Committee, it is with sincere gratitude and great sorrow that we would like to dedicate WAIM 2005 proceedings to Hongjun Lu, who left us on March 3, 2005. Hongjun was not only an excellent researcher and highly productive scholar of the database community, but also a wond- ful colleague and dear friend. For many years, he has been the ambassador for database research to China, and tremendously fostered the growth of this community.

Autorentext
Jun Yang, geboren 1975 in China, aufgewachsen in Wien, Ausbildung in Amsterdam und Peking, lebt heute in Wien. Seit 1997 Einzelausstellungen in Österreich, Deutschland und der Schweiz sowie Gruppenausstellungen in Europa und Japan.

Inhalt
Keynote and Invited Talks.- Research Session 1: XML.- Research Session 2: Performance and Query Evaluation.- Research Session 3: Data Mining (I).- Research Session 4: Semantic Web and Web Ontology.- Research Session 5: Data Management (I).- Research Session 6: Information Systems.- Research Session 7: Web Services and Workflow (I).- Research Session 8: Data Management (II).- Research Session 9: Data Grid and Database Languages.- Research Session 10: Agent and Mobile Data.- Research Session 11: Data Mining (II).- Research Session 12: Web Services and Workflow (II).- Research Session 13: Database Application and Transaction Management.- Industrial Session.- Short Papers and Demonstration.