Machine Learning definition(机器学习的定义)

Arthur Samuel(1959). Machine Learning:

Field of study that gives computers the ability to learn without being explicitly programmed. （在没有明确设置的情况下，使计算机具有学习能力的研究领域）

 

Tom Mitchell(1998). Well posed Learning Problem:

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. （在一个适当的学习问题定义如下：计算机程序从经验E中学习解决某一任务T进行某一性能度量T，通过P测定在T上的表现因经验E而提高）

E.g.

 

Machine learning algorithms:

- Supervised learning    （监督学习）  

- Unsupervised learning     （非监督学习）

Others:

Reinforcement learning（强化学习）, recommender systems（推荐系统）

 

Also talk about:

Practical advice for applying learning algorithms.