一起啃PRML - 1.2 Probability Theory 概率论

A key concept in the field of pattern recognition is that of uncertainty.

Imagine we have two boxes, one red and one blue, and in the red box we have 2 apples and 6 oranges, and in the blue box we have 3 apples and 1 orange.

In this example, the identity of the box that will be chosen is a random variable, which we shall denote by B. This random variable can take one of two possible values, namely r (corresponding to the red box) or b (corresponding to the blue box). Similarly, the identity of the fruit is also a random variable and will be denoted by F . It can take either of the values a (for apple) or o (for orange).

posted @ 2016-04-02 09:51  AI_Believer  阅读(333)  评论(0编辑  收藏  举报