【摘要】 随着多媒体技术和多媒体相关应用的发展,对有效检索多媒体信息的要求越来越迫切。查询语言作为信息检索的有效工具,其研究也越来越受到关注。对现有的多媒体查询语言进行了全面的综述,将它们分为两类:专用语言和通用语言。尽管查询语言对多媒体信息系统提供有效的查询服务至关重要,但目前仍没有较好的多媒体查询语言评价准则。因此,针对多媒体查询语言的查询表达能力设计准则共16条,并根据这些准则对多媒体查询语言进行了评价。评价结果表明,这些语言能满足用户的基本查询要求,但在高级语义查询和不确定查询等方面还有欠缺。最后展望了多媒体查询语言的未来研究方向。更多还原

【Abstract】 The development of multimedia technologies demands support in effective multimedia information retrieval.So as a crucial component of information retrieval,many multimedia query languages had been proposed.The paper made an overview on existing multimedia query languages,which are classified into:special languages and unified languages.Then we proposed sixteen properties as the criteria,and based on them made the evaluations for these existing multimedia query languages.The result shows most languages satisfy basic query requirements,but in advanced requirements there are rooms for further enhancement.Last,the paper concludes by providing several research directions for multimedia query languages.更多还原