摘要
针对基于内容的检索技术在高层语义检索方面的不足,论文提出了一种通过XML大纲(schema)制导进行多媒体标注和检索的方法,即首先以schema来定义多媒体数据的结构,然后以schema制导的方法对多媒体内容进行标注和检索,并尝试采用基于SMIL的技术来实现检索结果的超媒体合成。为实现通用性,提出了schema制导树生成的一般算法,以及检索条件到XQuery查询语句的转换方法,最后描述了一个该方法的具体实现——Schema制导的多媒体标注和检索系统SDMMRS。
This paper proposes a method for multimedia data retrieval by the directing of XML schema.First,an XML schema is defined according to the multimedia data structure;and based on the schema,the multimedia data content is marked up and get retrieved.Both the markup and retrieval processes are guided by a directing tree structure which is generated from the schema.The retrieved results are organized as a piece of hypermedia based on SMIL.This retrieval method using high level semantics can be considered as a supplement to the content based retrieval which mainly focuses on the low level semantics.The general algorithms for building the schema directing tree and for creating X- Queries from the searching conditions are described in detail.A schema directed multimedia markup and retrieval system （SDMMRS） as the real implementation of proposed method is introduced.
出处
《计算机工程与应用》
CSCD
北大核心
2006年第14期109-113,131,共6页
Computer Engineering and Applications
基金
北京市教育委员会科技发展计划资助项目
