[timothybone]

For someone (me) not particularly knowledgeable on the subject. I'm curious to understand the contrast between this and vowpal wabbit. Could someone offer an insight into when it would be useful to use this project as opposed to vowpal?

[jhoon]

First, please don't use hashkernel in production. It's a toy designed to showcase how hash kernels can help us (easily) learn on structured data.

VW is faster, smarter, and more featureful. However, it doesn't know how to learn on structured data.