Queries of Digital Content Descriptions in MPEG-7 and MPEG-21 XML documents
نویسندگان
چکیده
The emerging ISO/IEC MPEG-7 and MPEG-21 multimedia standards use XML Schema for digital content descriptions and digital item declarations. They have posed an interesting challenge to XML query language design. The paper shows certain critical query specification issues for MPEG-7 and MPEG-21 XML documents and illustrates a logic method to handle the limitations in current text-oriented XML query languages for retrieving multimedia content and digital items.
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