keynotes　

Geoffrey C. Fox, Indiana University, USA.
Keynote Tile: Knowledge in a Web 2.0 Grid 　　

Yanchun Zhang (Editor-in-Chief, World Wide Web: Internet & Web Information Systems)
Keynote Title: Web Communities Mining and Analysis
Abstract:
Due to the lack of a uniform schema for Web documents and the sheer amount and dynamics of Web data, both the effectiveness and the efficiency of information management and retrieval of Web data is often unsatisfactory when using conventional data management and searching techniques. To address this issue, we have adopted web mining and web community analysis approaches. Based on the analysis of Web document contents, hyperlinks analysis, user access logs and semantic analysis, we have developed various approaches or algorithms to construct and analyze Web communities, and to make recommendations / personalization.　This paper/talk will introduce and discuss various approaches on web community analysis and construction.

Qing Li, City University of Hongkong.
Keynote Tile: Devising a Semantic Model for Multimedia Databases: Rationale, Facilities, and Applications
Abstract:
When people realized that relational databases fall short in supporting advanced applications including multimedia data management due to the limited modeling power of the relational data model, researchers went ahead with devising semantic, object-oriented data models in the 80's (until early 90's). While the later commercial development of database systems has led to the so-called object-relational databases since late 90's, such a marriage of the two does not actually solve the problems encountered by multimedia data management. In this paper, we present a new semantic multimedia database model based on an extension to the traditional ANSI/SPARC three level architecture, attempting to cater for the unique requirements of multimedia data management. Various facilities of this semantic multimedia database model are described and discussed. A number of applications have been developed based on this new model, and in this talk we shall describe some of these including recipe data modeling and cross-media retrieval. 　　

Tharam Dillon, Curtin University of Technology, Australia.
Keynote Title: GRIDSpace: Semantic Grid Services on the Web
Abstract:
This paper advances the notion of software in existing Grid services as discussed in OGSA, which provides software middleware or wrappers for accessing hardware resources towards the notion that the resources provided can be hardware, software, or hybrid hardware/software. It also proposes an approach using the integration of Grid service, Semantic Grid, and Web2.0 to overcome some of the limitations of the existing Web services architecture which relies on having the Web version of the RPC mechanism and thus has difficulty in dealing with massive scale of user participation and communication across the Internet. The new approach produces a novel Grid architecture – GRIDSpace.