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.
Words sparse representation. Each word in the dictionary, its part-of-speech in the text and its capitalization status are associated with 3 indexes in the representation. If a word is out of the dictionary, it will only be represented by its part-of-speech and capitalization status.
