some good toy projects to start with: http://www.quora.com/Programming-Challenges-1/What-are-some-good-toy-problems-in-data-science http://www.quora.com/Program

some good toy projects to start with: http://www.quora.com/Programming-Challenges-1/What-are-some-good-toy-problems-in-data-science http://www.quora.com/Programming-Challenges-1/What-are-some-... for more see http://www.quora.com/Machine-Learning/What-are-some-good-learning-projects-to-teach-oneself-about-machine-learning/answers/452183 http://www.quora.com/Machine-Learning/What-are-some-good-lea...