Using Spark to Predict Sparkify Churn Rate
Project Definition Project Overview
Sparkify is a fictional music streaming app created by Udacity for this project. The fictional users have 2 service plans to choose: ‘Free - tier’ asks no fee from users but…
基本形式线性判别函数和决策边界多分类 Logistic回归参数学习 Softmax回归起源定义参数学习 感知器(Perceptron)感知器的收敛性参数平均感知器扩展到多分类 支持向量机 基本形式
𝐷 维样本 x [ x 1 , x 2 , . . . , x D ] T x[x_1,x_2,...…