Hessian in a sentence as a noun

It's like the difference between wearing silk underwear and hessian underwear.

I recently implemented the more advanced hessian free optimization methods that don't require pretraining in my deep learning framework.

If you're interested in some techniques people have been using, I highly suggested you read up on optimization methods such as conjugate gradient and hessian-free optimization.

Hessian definitions

noun

(19th century) a man's high tasseled boot

See also: jackboot Wellington