Comment by omoikane

This looks like a personal blog post, in a blog where the author have avoided capitalization fairly consistently. The blog post was likely not meant to be a research paper, and reading it as a research paper is probably setting the wrong expectations.

If people wanted to read formal-looking formatted text, the author has linked to one in the second paragraph:

https://arxiv.org/abs/1511.07916 - Natural Language Understanding with Distributed Representation