Here at Ohloh we've accumulated an enormous database of open source development facts. So far, we've indexed over 3,000 projects and 220 million lines of source code. In addition, we've followed the history of these lines of code, to identify when and by
See how your favorite language compares with others. Bottom line: Python wins over other scripting languages, but doesn't compare to byte-code languages like Java and C#; raw C code kicks bootie on Java and C#, does a little better than C++. Shocking.
From the user's perspective, MDP is a collection of supervised and unsupervised learning algorithms and other data processing units that can be combined into data processing sequences and more complex feed-forward network architectures.