博客
关于我
西瓜书读书笔记3-对数几率回归(logistic回归)公式推导
阅读量:226 次
发布时间:2019-03-01

本文共 839 字,大约阅读时间需要 2 分钟。

?????????????

1. ??????

???????Generalized Linear Model, GLM?????????????????????????????????????????????GLM????????

  • ??????????????????????
  • ?????????????????????????
  • ?????????????????????????????????????????
  • GLM?????????????????????????????????

    2. ??????

    ???????Logistic Regression???????????????????????????????????????????????????????????

  • ?????????????????????????????????
  • ???????????????????????????
  • 1. ???????????????

    ?????????????[ \log(\pi_{y=1}X) = \beta_0 + \beta_1X_1 + \beta_2X_2 + \ldots + \beta_kX_k ]???(\pi_{y=1})?????????(X_1, X_2, \ldots, X_k)?????

    2. ????????

    ????????[ \mathcal{L}(\beta) = \sum_{i=1}^n [\ln(\pi_{y_i=1}X_i) + \ln(\pi_{y_i=0}X_i)] ]???(\beta)??????????????????????

    3. ???????????

    ?????????????????????????(\hat{\beta})??????????????

    3. ???????????

    ?????????????????????????????????????????????????????????

    转载地址:http://jaiv.baihongyu.com/

    你可能感兴趣的文章
    POJ 3041 Asteroids(二分匹配模板题)
    查看>>
    Qt笔记——标准文件对话框QFileDialog
    查看>>
    poj 3083 Children of the Candy Corn
    查看>>
    POJ 3083 Children of the Candy Corn 解题报告
    查看>>
    POJ 3253 Fence Repair C++ STL multiset 可解 (同51nod 1117 聪明的木匠)
    查看>>
    Qt笔记——控件总结
    查看>>
    poj 3262 Protecting the Flowers 贪心
    查看>>
    poj 3264(简单线段树)
    查看>>
    Qt笔记——布局管理三件套分割窗口、停靠窗口和堆栈窗口
    查看>>
    poj 3277 线段树
    查看>>
    POJ 3349 Snowflake Snow Snowflakes
    查看>>
    POJ 3411 DFS
    查看>>
    poj 3422 Kaka's Matrix Travels (费用流 + 拆点)
    查看>>
    Qt笔记——官方文档全局定义(二)Functions函数
    查看>>
    POJ 3468 A Simple Problem with Integers
    查看>>
    poj 3468 A Simple Problem with Integers 降维线段树
    查看>>
    poj 3468 A Simple Problem with Integers(线段树 插线问线)
    查看>>
    poj 3485 区间选点
    查看>>
    poj 3518 Prime Gap
    查看>>
    poj 3539 Elevator——同余类bfs
    查看>>