摘要: Multiclass Classification: One-vs-all Now we will approach the classification of data when we have more than two categories. Instead of y = {0,1} we w 阅读全文
posted @ 2017-08-17 17:52 ne-zha 阅读(249) 评论(0) 推荐(0)
摘要: 高级优化在octave中有封装函数,需要代价函数和每个theta对应代价函数的偏导实现,算是一个比较高级的梯度下降算法,免除人·工设定学习率 阅读全文
posted @ 2017-08-17 17:41 ne-zha 阅读(541) 评论(0) 推荐(0)