机器学习算法ridge回归
时间: 2023-10-04 17:14:03 浏览: 248
机器学习算法之Ridge算法实现.zip
Ridge回归是一种机器学习算法,它是线性回归的一种变种。它在标准线性回归的基础上加入了一个正则化项,以防止过拟合。Ridge回归的核心思想是通过最小化代价函数来找到最优的回归系数。代价函数由两部分组成,一部分是均方误差,用来衡量预测值与实际值之间的差距;另一部分是正则化项,用来控制回归系数的大小。正则化项中的参数λ决定了正则化的程度,越大则对回归系数的限制越严格。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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