检索性能评价的英文

retrieval performance evaluation

例句与用法

Evaluation of four famous english search engines
几种英文搜索引擎检索性能评价分析
In addition , the concept of scene centriod is introduced to represent video scene by averaging of all key frames inside a group of shots in the given video scene , which makes an audacious attempt for high - level video unit extraction and representation ; 4 ) according to the given sample video , shot and scene - based video retrieval methods are discussed respectively , and the evaluation pricinples are also discussed
进而，讨论了由场景中一组镜头的关键帧的质心表示场景关键帧，即场景质心的方法，从而为抽取高层的视频数据单元做出了大胆的尝试； d )从给定样本视频出发，分别讨论了基于镜头和场景的视频检索方法，并分析了检索性能评价的准则。