FM/FFM算法的产生我们使用传统的线性模型（如逻辑回归）进行广告CTR（广告点击率）、CVR（转化率）预测时，往往遇到下面的问题:
数据
2019-05-03
逻辑回归（Logistic Regression）原理
sigmoid函数sigmoid函数公式:$$\sigma(x)=\frac{1}{1+e^{-x}}$$当x趋近于负无穷时，函数值趋近于0
2019-05-02
牛顿法、拟牛顿法原理
非线性方程与其最优化方法非线性方程指方程的因变量与自变量之间的关系不是线性关系的方程，比如平方关系、对数关系、指数关系、三角函数关系等。对于
2019-04-29
ubuntu18.04-64位+GTX1070max-q安装CUDA10.0+CUDNN7.4.2+Anaconda3.5.2+Tensorflow-gpu1.13.1+PyTorch-gpu1.1
安装Ubuntu18.04系统注意:本安装方法设置完成后，不需要使用easybcd设置启动项。开机时是ubuntu系统在引导，选择ubunt
2019-04-27
198-House Robber
题目You are a professional robber planning to rob houses along a street.
2019-04-22
572-Subtree of Another Tree
题目Given two non-empty binary trees s and t, check whether tree t has e
2019-04-22
437-Path Sum III
题目You are given a binary tree in which each node contains an integer v
2019-04-21
101-Symmetric Tree
题目Given a binary tree, check whether it is a mirror of itself (ie, sym
2019-04-13
1-Two Sum
题目Given an array of integers, return indices of the two numbers such t
2019-04-13
53-Maximum Subarray
题目Given an integer array nums, find the contiguous subarray (containin
2019-04-12
70-Climbing Stairs
题目You are climbing a stair case. It takes n steps to reach to the top.
2019-04-10
543-Diameter of Binary Tree
题目Given a binary tree, you need to compute the length of the diameter
2019-04-10