# Artificial Intelligence

CVSA's automated workflow relies heavily on artificial intelligence for information extraction and classification.

The AI ​​systems we currently use are:

### The Filter

Located at `/filter/` under project root dir, it classifies a video in the [category 30](../about/scope-of-inclusion.md#category-30) into the following categories:

* 0: Not related to Chinese vocal synthesis
* 1: A original song with Chinese vocal synthesis
* 2: A cover/remix song with Chinese vocal synthesis
