# 数据科学导论
数据科学那么火,资源那么多,但找遍中文互联网都找不到系统、稍微过得去的笔记,于是就想着自己做一份。我认知中的优秀笔记是 [CS231n 中文笔记](https://zhuanlan.zhihu.com/p/21930884?refer=intelligentunit),希望这系列笔记能达到它的质量。欢迎加星、合作、提问题、增改内容。
关于数据科学学科介绍的文章、鸡血颇多,因此不再赘述,简而言之,数据科学是计算机科学、统计学、相关领域的结合,以数据、统计思维和计算思维解决问题。而我相信体验数据科学的最佳方式,就是亲手实践。
笔记基于两门数据科学导论课,分别是加州大学伯克利校区 [DS100](http://www.ds100.org/sp17/syllabus) 与哈佛大学 [CS109](http://cs109.github.io/2015/pages/videos.html),质量颇高。特别感谢制作这两门课程的 Joe Blitzstein、Hanspeter Pfister、Verena Kaynig-Fittkau、Joseph E. Gonzalez、Joseph Hellerstein、Deborah Nolan 和 Bin Yu。
笔记使用 Python3 和 Jupyter Notebook,于[知乎专栏](https://zhuanlan.zhihu.com/introdatascience)亦有更新。
笔记假定读者是以中文为母语、对数据科学感兴趣的入门者,故以中文为主、英语为注释进行创作,原课件为英文而作者亦无中文相关背景,故必然存在翻译纰漏,还请海涵并指出。
Given the assumption that readers are Chinese speakers and interested in Data Science, this note will be written primarily in Chinese and using English as captions.
## 知识储备
默认读者具有以下知识:
* 概率统计基础:理解方差、期望值(均值)、联合概率、条件概率等基本概念
* Python 基础:理解函数、循环、变量、列表生成式、类等基本概念,知道 pip、Jupyter Notebook、NumPy、Pandas 等工具
* 英语技能: 四级或 IELTS 6 分以上水平,能浏览英语文档及文献
* 知识技能:科学上网并使用 Google 查找解决方案
若不具备以上知识,推荐以下资源:
* [data8](http://data8.org)(Python 与统计入门)
* [Learn Python The Hard Way](https://learnpythonthehardway.org/book/)(Python 入门)
* [CS61A](http://cs61a.org)(Python 进阶)
* [Introduction to Computer Science and Programming Using Python](https://courses.edx.org/courses/course-v1:MITx+6.00.1x+2T2017/course/)(Python 进阶)
## 哲学
使用工具,并明了背后的思想;
内容自洽(self-contained),并提供深入途径;
能可视化的就不要用文字;
开源,协作。
## 笔记目录
- [x] [数据收集与整理 Data Collecting, Unboxing and Wrangling](https://nbviewer.jupyter.org/github/iewaij/introDataScience/blob/master/01.%20Data%20Collecting%2C%20Unboxing%20and%20Wrangling.ipynb)
- [x] [探索性数据分析 Exploratory Data Analysis](https://github.com/iewaij/introDataScience/blob/master/02.%20Exploratory%20Data%20Analysis.md)
- [x] [统计模型 Statistical Models](https://github.com/iewaij/introDataScience/blob/master/04.%20Statistical%20Models.md)
- [ ] 贝叶斯理论和贝叶斯方法 Bayes Theorem and Bayesian Methods
- [x] [偏差与方差 Bias and Variance](https://github.com/iewaij/introDataScience/blob/master/05.%20Bias%20and%20Variance.md)
- [ ] 线性回归 Linear Regression
- [ ] 逻辑回归 Logistic Regression
- [ ] k 最近邻 k-Nearest Neighbor
- [ ] 支持向量机 SVM
- [ ] 决策树 Decision Trees
- [ ] 随机森林 Random Forests
- [ ] 集成方法 Ensemble Methods
- [ ] 聚类 Clustering
- [ ] 深度神经网络 Deep Networks
- [ ] 最佳实践 Best Practices
- [ ] 推荐系统和并行计算 Recommendations and MapReduce
- [ ] 大数据处理 Spark
- [ ] 实验设计 Experimental Design
- [x] [用数据讲故事 Story Telling](https://github.com/iewaij/introDataScience/blob/master/03.%20Story%20Telling.md)
- [ ] 高效演讲 Effective Presentations
## 作业目录
### DS100
- [x] [总统候选人推特分析:助手还是本人? Language in the 2016 Presidential Election](https://github.com/iewaij/introDataScience/blob/master/material/homework/DS%20100/hw2/hw2.ipynb)
- [ ] [数据清洗与探索性数据分析 Data Wrangling and Exploratory Data Analysis](https://github.com/iewaij/introDataScience/blob/master/material/homework/DS%20100/hw3/hw3.ipynb)
- [ ] [爬虫 Crawling the Web](https://github.com/iewaij/introDataScience/blob/master/material/homework/DS%20100/hw5/hw5.ipynb)
- [ ] [预测房价 Prediction on Housing Prices](https://github.com/iewaij/introDataScience/blob/master/material/homework/DS%20100/hw6/hw6.ipynb)
### CS100
- [ ] [探索性数据分析 Exploratory Data Analysis](https://github.com/iewaij/introDataScience/blob/master/material/homework/CS%20109/HW1.ipynb)
- [ ] [进一步探索性数据分析 More Exploratory Data Analysis](https://github.com/iewaij/introDataScience/blob/master/material/homework/CS%20109/HW2.ipynb)
- [ ] [预测与分类 Prediction and Classification](https://github.com/iewaij/introDataScience/blob/master/material/homework/CS%20109/HW3.ipynb)
## 实验目录
- [ ] [概率、分布与频率统计 Probability, Distributions, and Frequentist Statistics](https://github.com/iewaij/introDataScience/tree/master/material/lab/Probability%2C%20Distributions%2C%20and%20Frequentist%20Statistics)
- [ ] [用 sklearn 和 statsmodels 实现回归与逻辑回归 Regression and Logistic Regression in sklearn and statsmodels](https://github.com/iewaij/introDataScience/tree/master/material/lab/Regression%20and%20Logistic%20Regression%20in%20sklearn%20and%20statsmodels)
## Change Log
2017-09-01 完成推特分析作业
2017-09-01 完成统计模型
2017-08-17 完成用数据讲故事
2017-08-11 完成探索性数据分析
2017-08-10 完成数据收集与整理
2017-08-09 初始化
没有合适的资源?快使用搜索试试~ 我知道了~
温馨提示
数理统计、机器学习和数据编程的学习笔记.zip 数理统计、机器学习和数据编程的学习笔记.zip 数理统计、机器学习和数据编程的学习笔记.zip 这个专栏是涉及数理统计、机器学习和数据编程三个方面的学习笔记,主要关注数理统计和机器学习。为什么要有笔记?笔记通常比教科书更简洁,比视频和课件更方便阅读,适合读者按图索骥、复习和总结。很多人讲数据科学这么多东西要学怎么学得完,我的看法是,做不到样样精通,因此更需要有一个地图,这样遇到问题了能知道是哪里出了问题、要去哪里找答案。
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