Questions from Cross Validated Stack Exchange

Full text of questions and answers from [Cross Validated](http://stats.stackexchange.com/), the statistics and machine learning Q&A site from the Stack Exchange network.

This is organized as three tables:

* **Questions** contains the title, body, creation date, score, and owner ID for each question.
* **Answers** contains the body, creation date, score, and owner ID for each of the answers to these questions. The ParentId column links back to the Questions table.
* **Tags** contains the tags on each question

For space reasons only non-deleted and non-closed content are included in the dataset. The dataset contains questions up to **19 October 2016** (UTC).

### License

All Stack Exchange user contributions are licensed under [CC-BY-SA 3.0](https://creativecommons.org/licenses/by-sa/3.0/) with [attribution required](http://blog.stackoverflow.com/2009/06/attribution-required/).

本数据集收录了来自[Cross Validated](http://stats.stackexchange.com/)的问答全文，该网站为Stack Exchange网络中的统计学与机器学习问答平台。数据集以三张表格组织结构：

* **问题**表格包含每个问题的标题、正文、创建日期、评分以及所有者ID。
* **答案**表格包含针对这些问题的每个答案的正文、创建日期、评分以及所有者ID。parentId列将答案与问题表格相链接。
* **标签**表格包含每个问题的标签。

由于空间限制，数据集中仅包含未被删除和关闭的内容。数据集包含直至**2016年10月19日**（UTC时间）的问题。

### 许可证

所有Stack Exchange用户的贡献均受[CC-BY-SA 3.0](https://creativecommons.org/licenses/by-sa/3.0/)许可协议约束，并要求[注明出处](http://blog.stackoverflow.com/2009/06/attribution-required/)。