one-hot编码和dummy编码:区别与联系 二者的“思想路线”是相同的,只是哑变量编码觉得one-hot编码太罗嗦了(一些很明显的事实还说的这么清楚),所以它就很那么很明显的东西省去了。这种简化不能说到底好不好,这要看使用的场景。下面我们以一个例子来说明: 总结:我们使用one-hot编码时,通常我们的模型不加bias项 ...
That's where dummy coding comes in. It allows to look at categorical predictors in the same model as continuous predictors and put them together in moderation analyses. Featurizing via a one-hot-encoding representation lead to a very large feature vector. To reduce the dimensionality of the...