新闻视频挖掘技术研究

新闻视频挖掘是一个新兴的研究领域，也是多媒体数据挖掘的典型代表。本文对新闻视频挖掘技术进行了全面深入的讨论，首先从概念上对新闻视频挖掘进行了界定，提出了新闻视频挖掘的层次框架和技术框架，指出新闻视频挖掘包括低层视频挖掘和高层视频挖掘两个层次。其中，低层视频挖掘是利用数据挖掘的方法对视频内容进行分析的过程，而高层数据挖掘则是在低层挖掘的基础上进一步发现视频中的知识的过程。新闻视频挖掘的技术框架则对挖掘所涉及到的具体技术进行了分析。最后，对新闻视频挖掘中的结构挖掘、语义内容挖掘、视频摘要、趋势挖掘、关联挖掘等任务进行了详细的阐述，并对各种任务举出了具体的示例加以说明。

Research on News Video Mining Techniques

News video mining is a rising field that is the sub field of multimedia data mining.A survey of news video mining techniques is discussed.First,the definition of news video mining and the relationships of news video mining and other fields are analyzed.Then the layered and technical frameworks of news video mining are designed.In the layered framework,news video mining is divided into two layers.One is the low-level video mining,which is the process of analyzing video content by the methods of data mining.The other is the high-level video mining,which is the psocess of discovering knowledge on the basis of low-level video mining.The tasks of news video mining that include structure mining,semantic content mining,video summarization,tendency mining,association rule mining,classification,clustering,etc.are also described in detail.