There are already several -- more or less automated -- tools to make copyright infringements on YouTube more difficult, especially the Content ID. A new tool, Copyright Match, is now added, which should especially recognize re-uploads of a YouTube video, i.e. cases in which someone saves a complete clip from the portal and then uploads it as an own video (and thus deprives the original author of views and possibly advertising revenues).
YouTube algorithms simply analyze and compare video data from new and already uploaded movies, similar to the content ID, but not individual parts of it, but as a whole. If you uploaded a video first, YouTube will classify you as its creator and let you decide whether the unauthorized copies may remain online or should be removed. However, the latter should only be applied for if one is sure that one is actually the author of a work and that its use, for example, cannot be classified according to (American) fair use.
In contrast to the Content ID, the Copyright Match Tool will in future be available for all so-called "creators" in the YouTube partner program. Initially, however, it will only be activated for those with 100,000 subscribers or more.