Mediaviews: A layered view mechanism for integrating multimedia data

Abstract

Recently, advanced Web-based applications require integrated access to diverse types of multimedia data such as images, video clips, and audios. To help development of these applications, it is necessary to integrate heterogeneous multimedia data from disparate sources into a single data warehouse. In this paper, we propose a novel view mechanism for integrating multimedia data. First, we design a common data model called the XML/M and develop a view definition language called the XQuery/M. The XML is extended to describe multimedia contents and to capture semantic relationships among multimedia objects. The XQuery language is also extended to access, edit, and update multimedia contents. Second, we develop a layered view mechanism composed of intra-media views and inter-media views to support user queries efficiently. Finally, we suggest a rule-based view maintenance technique. We show that how the Mediaviews mechanism generates user-centered views and manages changes from underlying data sources. Our approach provides semantics-based integration and content-based retrieval of multimedia data. © Springer-Verlag Berlin Heidelberg 2003.