![Kelly Criterion Image](https://i0.wp.com/logicon.io/wp-content/uploads/2017/05/k.jpg?fit=610%2C265&ssl=1)
All posts by leehodg
![Kelly Criterion Image](https://i0.wp.com/logicon.io/wp-content/uploads/2017/05/k.jpg?fit=610%2C265&ssl=1)
![Logistic Regression](https://i0.wp.com/logicon.io/wp-content/uploads/2022/08/logreg.png?fit=1278%2C786&ssl=1)
Logistic Regression
In simple Logistic Regression, we have the cost function $$\mathcal{L}(a, y) = -yln{(a)} – (1-y)ln{(1-a)}$$ where $a$ is the predicted value and $y$ is the ground-truth label on the training set (${0, 1}$). Why this function? The intuitive version is that if $y=1$ the second term goes away, and the first term that […]
![Binomial distribution](https://i0.wp.com/logicon.io/wp-content/uploads/2017/04/bindist.png?fit=1280%2C854&ssl=1)
Derivation of mean and standard deviation of common distributions
We derive the mean of some common distributions