Code Monkey home page Code Monkey logo

ali-data-mining's Introduction

Ali_Data_Mining

阿里巴巴大数据竞赛

官网

简介

在天猫，每天都会有数千万的用户通过品牌发现自己喜欢的商品，品牌是联接消费者与商品最重要的纽带。本届赛题的任务就是根据用户4个月在天猫的行为日志，建立用户的品牌偏好，并预测他们在将来一个月内对品牌下商品的购买行为。

数据类型

  • 字 段 字段说明 提取说明
  • user_id 用户标记 抽样&字段加密
  • Time 行为时间 精度到天级别&隐藏年份
  • action_type 用户对品牌的行为类型 包括点击、购买、加入购物车、收藏4种行为 (点击：0 购买：1 收藏：2 购物车：3）
  • brand_id 品牌数字ID 抽样&字段加密

用户对任意商品的行为都会映射为一行数据。其中所有商品ID都已汇总为商品对应的品牌ID。用户和品牌都分别做了一定程度的数据抽样，且数字ID都做了加密。所有行为的时间都精确到天级别(隐藏年份)。

评估指标

最后我们用F1-Score 来拟合准确率与召回率，并且大赛最终的比赛成绩排名以F1得分为准。

实现算法

  • 协同过滤
    简单建模，效果很差

  • 逻辑回归
    最好成绩：1111/0.06480648/0.05224964/5.785456

  • 随机森林
    最好成绩：1160/0.05344828/0.04499274/4.885737

  • 贝叶斯 -ing

ali-data-mining's People

Contributors

sunnotes avatar

Stargazers

avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar

Watchers

avatar avatar avatar avatar avatar avatar avatar

Forkers

yonglin singlajimitesh janivia amumuisbest zhuanjun amishass hbwzhsh ldh127 jackwangcumt pyup gzdx-chenghui chaosbynn yexuan crazy121 rxt2012kc 505555998 xinyu123200 yangzhijiang chenxiaodong tonyjava ploveme qingshenqin nilname alejandroe-sanchezv chenxihaihan robertgg1314 zecheng cjysmat lilongfeicode kellsky neil03 samantha-yao study-resource-doc blacksmpig

Recommend Projects

  • React photo React

    A declarative, efficient, and flexible JavaScript library for building user interfaces.

  • Vue.js photo Vue.js

    🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.

  • Typescript photo Typescript

    TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

  • TensorFlow photo TensorFlow

    An Open Source Machine Learning Framework for Everyone

  • Django photo Django

    The Web framework for perfectionists with deadlines.

  • D3 photo D3

    Bring data to life with SVG, Canvas and HTML. 📊📈🎉

Recommend Topics

  • javascript

    JavaScript (JS) is a lightweight interpreted programming language with first-class functions.

  • web

    Some thing interesting about web. New door for the world.

  • server

    A server is a program made to process requests and deliver data to clients.

  • Machine learning

    Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.

  • Game

    Some thing interesting about game, make everyone happy.

Recommend Org

  • Facebook photo Facebook

    We are working to build community through open source technology. NB: members must have two-factor auth.

  • Microsoft photo Microsoft

    Open source projects and samples from Microsoft.

  • Google photo Google

    Google ❤️ Open Source for everyone.

  • D3 photo D3

    Data-Driven Documents codes.