Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Update 82.k最近邻算法.md #1084

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Update 82.k最近邻算法.md #1084

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
1 change: 1 addition & 0 deletions Day81-90/82.k最近邻算法.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -258,6 +258,7 @@ $$
上面的例子，模型预测的精确率为： $\frac{80}{80 + 30} = \frac{80}{110} = 0.73$ 。

3. **召回率**（Recall）。召回率用于衡量在所有实际为正类的样本中，被模型正确预测为正类的比例，通常也被称为查全率或真正例率（True Positive Rate）。

$$
\text{Recall} = \frac{\text{TP}}{\text{TP} + \text{FN}}
$$
Expand Down