成本函数(cost function)也叫损失函数(loss function),用来定义模型与观测值的误差。模型预测的价格与训练集数据的差异称为残差(residuals)或训练误差(test errors)。 我们可以通过残差之和最小...
2023-06-09编程教程regression,回归,线性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 observat...
2023-05-18编程教程Descent,Logistic,regressionlogistic regression cost function(single example) 图像分布 logistic regression cost function(m examples) Writting cost function in a more convenient form with just one line To fit parameter&n...
2023-05-18编程教程Classification,Logistic,regression这篇文章将为大家详细讲解有关基于Pytorch的神经网络如何实现Regression,小编觉得挺实用的,因此分享给大家做个参考,希望大家阅读完这篇文章后可以有所收获。 1.引言 我们之前已经介绍了神经网络的基本知识...
2023-05-09编程教程pytorch,regressionRegression Machine Learning 机器学习的意义就在于让机器具备找一个函数(function)的能力 Different types of Functions Regression 如果要找的函数输出的值是一个数值,即一个标量(scalar),那这样的机器学...
2023-05-04编程教程ML,regressionMultiple Regression What is multiple regression? Multiple regression is regression analysis with more than one independent variable. It is used to quantify the influence of two or more independent ...
2023-04-23编程教程multiple,regression