The 'Vowpal Wabbit' project is a fast out-of-core learning system sponsored by Microsoft Research (having started at Yahoo! Research) and written by John Langford along with a number of contributors. This R package does not include the distributed computing implementation of the cluster/ directory of the upstream sources. Use of the software as a network service is also not directly supported as the aim is a simpler direct call from R for validation and comparison.
R interface to Vowpal Wabbit
A proof-of-concept wrapping of (an earlier version of) Vowpal Wabbit
It works. It could do with some help. And it should be updated now to use the external VowpalWabbit library which did not exists when this work was originally done. Collaborators welcome.
GPL (>= 2)