Traditional hypermedia systems can be extended to allow content based matching to give more flexibility for user navigation, but this approach is still limited by the capabilities of multimedia matching technology. The addition of a multimedia thesaurus can overcome some of these limitations by allowing multimedia representations of concepts to act like synonyms in the query process. In addition, relationships between concepts allow navigation within the context of a semantic scope. The use of agents that independently examine the information in the system can also provide alternative methods for query evaluation. This paper presents a flexible architecture that supports such a system and describes initial work on implementation. KEYWORDS: Content based navigation, multimedia architecture, thesaurus. 1 Introduction Traditional hypertext systems allow textual information to be arbitrarily linked so that users can navigate between related parts of the information in the system. ..
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