"Q: What algorithm does Amazon Machine Learning use to generate models?
Amazon Machine Learning currently uses an industry-standard logistic regression algorithm to generate models."
"Q: Can I export my models out of Amazon Machine Learning?
Q: Can I import existing models into Amazon Machine Learning?
Note that they are doing classification and regression on iid feature vectors. Of course, ML is much larger than this setting, but this setting is generic enough that it has some applicability to lots of problems.
Also, vw is what I'd consider "industry standard."