From 88c61a7aafec5899de52b6f2cd7645fea7c361d0 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Alexander=20M=C3=A4rz?= Date: Fri, 25 Aug 2023 14:33:28 +0200 Subject: [PATCH] Add support for mixture distributions --- .../GaussianMixture_Regression_CaliforniaHousing.ipynb | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/docs/examples/GaussianMixture_Regression_CaliforniaHousing.ipynb b/docs/examples/GaussianMixture_Regression_CaliforniaHousing.ipynb index d69b124a..407540f2 100644 --- a/docs/examples/GaussianMixture_Regression_CaliforniaHousing.ipynb +++ b/docs/examples/GaussianMixture_Regression_CaliforniaHousing.ipynb @@ -18,13 +18,7 @@ "cell_type": "markdown", "metadata": {}, "source": [ - "Mixture densities or mixture distributions offer an extension to the notion of traditional univariate distributions by allowing the observed data to be thought of as arising from multiple underlying processes. In its essence, a mixture distribution is a weighted combination of several component distributions, where each component contributes to the overall mixture distribution, with the weights indicating the importance of each component. For instance, if you imagine the observed data distribution having multiple modes, a mixture of Gaussians could be employed to capture each mode with a separate Gaussian distribution. \n", - "\n", - "
\n", - "\n", - "
\n", - "\n", - "For each component of the mixture, there would be a set of parameters that depend on covariates, and additional mixing coefficients which are also modeled as a function of covariates. This is particularly useful when a single parametric distribution cannot adequately capture the underlying data generating process. A mixture distribution can be represented as follows:\n", + "Mixture densities or mixture distributions offer an extension to the notion of traditional univariate distributions by allowing the observed data to be thought of as arising from multiple underlying processes. In its essence, a mixture distribution is a weighted combination of several component distributions, where each component contributes to the overall mixture distribution, with the weights indicating the importance of each component. For instance, if you imagine the observed data distribution having multiple modes, a mixture of Gaussians could be employed to capture each mode with a separate Gaussian distribution. For each component of the mixture, there would be a set of parameters that depend on covariates, and additional mixing coefficients which are also modeled as a function of covariates. This is particularly useful when a single parametric distribution cannot adequately capture the underlying data generating process. A mixture distribution can be represented as follows:\n", "\n", "\\begin{equation}\n", "f\\bigl(y_{i} | \\boldsymbol{\\theta}_{i}(x_{i})\\bigr) = \\sum_{m=1}^{M} w_{i,m}(x_{i}) \\cdot f_{m}\\bigl(y_{i} | \\boldsymbol{\\theta}_{i,m}(x_{i})\\bigr)\n",