通过引入元数据的标注完成对场景的标注，实现用户的语义查询。

The semantic retrieval of news video is implemented by the annotation of scene through metadata annotation.

youdao

通过引入元数据的标注完成对场景的标注，实现用户的语义查询。

The semantic retrieval of news video is implemented by the annotation of scene through metadata annotation.

youdao