多媒体高层语义框架及检索算法  

Multimedia high-level semantic framework and retrieval algorithm

作　　者：孙元[1] 陈贺新[2] 陈绵书[2] 桑爱军[2] 刘文军[3] 杨树媛[2] 

机构地区：[1]吉林大学公共计算机教学与研究中心,长春130022 [2]吉林大学通信工程学院,长春130022 [3]西门子(中国)有限公司沈阳分公司工业业务领域,沈阳110013

出　　处：《吉林大学学报（工学版）》2011年第1期244-248,共5页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(60832002);国家自然科学基金国际合作项目(609111301281);吉林省科技发展计划项目(20090113);吉林大学科学前沿与交叉学科创新项目(421033135410);吉林省科技发展计划重点项目(20090302);吉林省自然科学基金项目(20101515)

摘　　要：针对多媒体信息检索中的'语义鸿沟'问题,提出了矩阵分裂方法的定义及其基本运算准则,描述了适用于多种多媒体信息的高层语义框架,利用该框架对多媒体信息进行高层语义检索,解决了检索多媒体信息的'语义鸿沟'问题。针对该框架提出了基于每次用户检索结果的部分优先算法,利用用户每次检索结果对高层语义分支权重进行自适应调整,从而达到提高检索效率的目的。To solve the problem of semantic gap in retrieving multimedia information, the definition and operation laws of matrix division method were presented, which describes the high-level semantic framework for many kinds of multimedia information. For the purpose of solving the problem of semantic gap for searching multimedia information, the high-level semantic framework was employed to retrieve multimedia information. Meanwhile, for this framework, a partial priority algorithm was proposed based on the results that each user retrieves multimedia information. The algorithm modifies adaptively the high-level semantic branch weights according to the results that each user retrieves muhimedia information at each time. The retrieving efficiency is improved by the algorithm based on the framework.

关 键 词：计算机软件 高层语义 多媒体 矩阵分裂方法 

分 类 号：TP911.73[自动化与计算机技术]