The Manager class also has filtering methods called filter and exclude.

Manager 类还有两个过滤方法：一个是 filter，另外一个是 exclude。

youdao

Using its audio and video "fingerprinting" technology, Vobile has been filtering content on 56.com as well as the less popular Chinese site Pomoho.com since mid-2008.

FORBES: Sinking Video Pirates

For the users, the site will remain largely the same, as isoHunt has been filtering keywords from a list provided by the Motion Picture Association of America since the initial injunction in 2010.

FORBES: Movie Studios Win Important Appeal Against File Sharing Giant isoHunt

So far the filtering system has yet to materialize.

FORBES: Magazine Article