While having a closer look at the MLOSS workshop schedule I came across the following:
http://mldata.org/about/ > We built this website as a repository for your machine learning data. > Upload your data, find interesting data sets, exchange solutions, > compare yourself against other methods. Also, you will be able to set > up challenges easily. This repository manages the following types of > objects. Data Sets Raw data as a collection of similarily structured > objects. Learning Tasks Learning tasks defined on raw data. Solutions > Solutions for learning tasks. Thought it might be of interest to you. (Added to our wiki page with links to datasets as well.) Isabel
