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Suppose we are trying select among several different models for a learning problem.For instance, we might be using a polynomial regression model hθ(x) 阅读全文
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在第7章最后一段讲到Kernel,Kernel就是用向量表示元素的和的乘积。 Back in our discussion of linear regression, we had a problem in which the input x was the living area of a hou 阅读全文
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https://en.wikipedia.org/wiki/Mathematical_optimization In mathematics, computer science and operations research, mathematical optimization or mathema 阅读全文
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Machine learning Machine learning is a scientific discipline that explores the construction and study of algorithms that can learn from data. Such alg 阅读全文