7-1-The Problem of Overfitting
(现在为止,你已经见识了几种不同的学习方法包括线性回归和逻辑回归)By now, you've seen a couple different learning algorithm,linear regression and logistic regression.(它们能够有效解决许多问题,但是当将它们应用到某些特定的机器学习应用时,它们可能会遇到过度拟合,可能会导致它们效果很差)They work well for many problems, but when you apply them to certain machine learning applications, they can run into a problem called overfitting that can cause them to perform very poorly.(在这个视频中,我将为你解释什么是过度拟合问题,在此之后接下来的几个视频中,我们将讨论一种称为正则化的技术,它可以改善或者减少过度拟合问题,以使机器学习算法更好实现&#