1.什么是机器学习

A computer program is said tolearnfrom 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.

2.机器学习算法

监督学习（Supervised Learning）

回归（预测连续产值）

分类（离散值输出）

  无监督学习（Unsupervised Learning）

鸡尾酒会问题

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