常见任务Task,T (Classification):the computer program is asked to specify which of k categories some input belongs to.To solve this task,the learning algorithm is usually asked to produce a function: f:R”→{1，，k Output is discrete(离散的) 2(Regression):the computer program is asked to predict a numerical value given some input.To solve this task,the learning algorithm is asked to output a function :R”→R Output is continuous(连续的) 10/49常见任务 Task, T 1 分类 (Classification): the computer program is asked to specify which of k categories some input belongs to. To solve this task, the learning algorithm is usually asked to produce a function: f : R n → {1, ..., k} Output is discrete (离散的) 2 回归 (Regression): the computer program is asked to predict a numerical value given some input. To solve this task, the learning algorithm is asked to output a function f : R n → R Output is continuous (连续的) 10 / 49