Taste is a flexible, fast collaborative filtering engine for Java. The engine takes users' preferences for items ('tastes') and returns estimated preferences for other items. For example, a site that sells books or CDs could easily use Taste to figure out, from past purchase data, which CDs a customer might be interested in listening to. See the 'Ideas' link for ways you can help. We need help writing unit tests and profiling performance. We need help designing new APIs. We need help implementing or even researching new collaborative filtering algorithms. You'll probably need to be familiar with Java and have some CS background to help. See the application template below for more details about what information you should send in.