Enhancing Semantic via Knowledge Discovery from Distributed Multimedia Information Systems
Instructor: Arif Ghafoor
Multimedia technology has become an indispensable link for distributed information brokerage, along with user interfaces, and networking sub-systems; its richness in content allows capturing of complex application semantics, but it also presents enormous challenges in eliciting the embedded knowledge. Nevertheless, these challenges must be addressed as a paradigm shift to Web-based multimedia applications in almost all sectors of life appears inevitable. In addition, the richness of information embedded in multimedia data archives and its multiple origination sources exacerbate their semantic heterogeneity and their interpretations. As a result, it is extremely challenging to extract knowledge, develop ontologies, and build semantic links for multimedia data archives. The objective of this tutorial is to discuss these challenges and present a coherent multimedia semantic Web (MSW) framework that will provide a systematic methodology for extracting knowledge, semantically linking Web-based multimedia information, and allowing users to query/browse over the Internet for accessing multimedia information of interest. In particular, we will discuss the following issues and present the current state-of-the-art approaches aimed to address them:
1. How scalable methodologies can be developed that allow extraction of useful semantics embedded in multimedia data archived at distributed Internet data sites?
2 How valuable knowledge can be mined and extracted from such semantics and how such knowledge can be represented and made available to domain users in a manner that allows a universal access?
3. How a standardized open domain knowledge representation can be developed to achieve semantic interoperability among multiple platforms?
4. How a coherent MSW architecture can be developed that allow semantic interoperability among distributed multimedia data sites?
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Short Bios:
Arif Ghafoor is currently a Professor in the School of Electrical and Computer Engineering, at Purdue University, West Lafayette, IN, and is the Director of Distributed Multimedia Systems Laboratory. He has been actively engaged in research areas related to multimedia information systems, database security, and parallel and distributed computing. He has published numerous papers in these areas. Dr. Ghafoor has served on the editorial boards of various journals including ACM/Springer Multimedia Systems Journal, the Journal of Parallel and Distributed Databases, and the International Journal on Computer Networks. He has served as a Guest/Co-Guest Editor for various special issues of numerous journals including ACM/Springer Multimedia Systems Journal, the Journal of Parallel and Distributed Computing, International Journal on Multimedia Tools and Applications, IEEE Journal on the Selected Areas in Communications and IEEE Transactions on Knowledge and Data Engineering. He has co-edited a book entitled "Multimedia Document Systems in Perspectives" and has co-authored a book entitled "Semantic Models for Multimedia Database Searching and Browsing" (Kluwer Academic Publishers, 2000). Dr. Ghafoor is a Fellow of the IEEE. He has received the IEEE Computer Society 2000 Technical Achievement Award for his research contributions in the area of multimedia systems.
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