陆勤读书：《Machine Learning With R》
Tom M. Mitchell
A machine is said to learn if it is able to take experience and utilize it such that its performance improves up on similar experiences in the future.
A machine learning algorithm takes data and identifies patterns that can be used for action.
machine learning tends to be focused on performing a known task, whereas data mining is about the search for hidden nuggest of information.
for instance you might use machine learning to teach a robot to drive a car, whereas you would utilize data mining to learn what type of cars are the safest.
5 Problem set