Linear and Logistic Regression in TensorFlow Graphs and sessions TF Ops: constants, variables, functions TensorBoard Lazy loading Linear Regression: Predict life expectancy from birth rate Let's start with a simple linear regression example. I hope y…
二分类:Logistic regression 多分类:Softmax分类函数 对于损失函数,我们求其最小值, 对于似然函数,我们求其最大值. Logistic是loss function,即: 在逻辑回归中,选择了 “对数似然损失函数”,L(Y,P(Y|X)) = -logP(Y|X). 对似然函数求最大值,其实就是对对数似然损失函数求最小值. Logistic regression, despite its name, is a linear model for classification…
This is the 2nd part of the series. Read the first part here: Logistic Regression Vs Decision Trees Vs SVM: Part I In this part we’ll discuss how to choose between Logistic Regression , Decision Trees and Support Vector Machines. The most correct ans…
Classification is one of the major problems that we solve while working on standard business problems across industries. In this article we’ll be discussing the major three of the many techniques used for the same, Logistic Regression, Decision Trees…
Logistic Regression and Gradient Descent Logistic regression is an excellent tool to know for classification problems. Classification problems are problems where you are trying to classify observations into groups. To make our examples more concrete,…