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Machine Learning Definitions:

"The field of study that gives computers the ability to learn without being explicitly programmed." (Arthur Samuel)

"A computer program is said to learn from experience E with respect to

some class of tasks T and performance measure P, if its performance at

tasks in T, as measured by P, improves with experience E." Tom Mitchell

Example: playing checkers.

E = the experience of playing many games of checkers

T = the task of playing checkers.

P = the probability that the program will win the next game.