What is machine learning?
Two definitions of machine learning are offered.
Arthur Samuel version:
A field of study that gives computers the ability to learn without being explicitly programmed.
Tom Mitchell version:
A computer program is said to learn from experience E with respect to some task T and some performance measure P, if its performance on T, as measured by P, improves with experience E.
Example: playing checkers.
E = the experience of playing many games of checkers
