Risk
# Definition
Let $(X, Y, n)$ be a Classification Problem. Then the Risk on $(X, Y, n)$ of Classifier $f$ is $$R(f) = \mathbb{E}[1_{Y \neq f(X)}] = \mathbb{P}(Y \neq f(X))$$
Search
Let $(X, Y, n)$ be a Classification Problem. Then the Risk on $(X, Y, n)$ of Classifier $f$ is $$R(f) = \mathbb{E}[1_{Y \neq f(X)}] = \mathbb{P}(Y \neq f(X))$$