Proba ML4. Statistics4.1 Intro4. Statistics 4.1 Intro We estimate probability models parameters θ\thetaθ from data D\mathcal{D}D. Most methods are optimizations of the form: θ^=arg minθL(θ)\begin{equation} \hat{\theta}=\argmin_{\theta} \mathcal{L}(\theta) \end{equation}θ^=θargminL(θ)Home4.2 Maximum Likelihood Estimation