线性回归算法初探详解文档

Machine Learning: Field of study that gives computers the ability to learn without being explicitly programmed. A computer program is said to learn from experience E with respect to some task T and some performance measure P, if it’s performance on T, as measured by P, improves with experience E. 机器学习是一个高度跨学科的研究领域 find learning algorithm to problems in computer vision, biology, robots, language 文字识别、信用评估、网站的个性化推荐 若m很大，batch gradient descent 每前进一步点运行代价很大 stochastic gradien