Great point! VW was actually an inspiration for this blog post. I don't believe it handles structured data quite the same way as hashkernel, but it does a great

Great point! VW was actually an inspiration for this blog post. I don't believe it handles structured data quite the same way as hashkernel, but it does a great job of accepting both categorical and continuous features. We use VW models to classify all sorts of badness on my team at Facebook (http://www.newscientist.com/article/dn21095-inside-facebooks-massive-cybersecurity-system.html http://www.newscientist.com/article/dn21095-inside-facebooks...).