Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Training corpora for patent categorization. C73 has more patents per class with longer text and only primary classification.
| training corpus | number of patents/class | minimum text length | restricted to primary classification | number of classes | total number of patents |
|---|---|---|---|---|---|
| C73 | 200 | 8000 characters | yes | 73 | 14600 |
| C1205 | 100 | 2000 characters | no | 1205 | 120500 |
