tags-stack-overflow

Overview
This dataset is derived from tags on Stack Overflow posts. Each hyperedge corresponds to all of the tags used in a post, and each node in a hyperedge corresponds to a tag. The timestamps of the posts are in millisecond resolution, are adjusted so that the time of the earliest tag starts at 0, and are in ISO8601 format.
Statistics
Some basic statistics of this dataset are:

number of nodes: 49,998
number of timestamped hyperedges: 14,458,875
number of unique hyperedges: 5,675,497
Component sizes:
Component size, number

49931, 1
2, 7
1, 53
Source of original data

tags-stack-overflow dataset
StackExchange
References
If you use this data, please cite the following paper:

Simplicial closure and higher-order link prediction. Austin R. Benson, Rediet Abebe, Michael T. Schaub, Ali Jadbabaie, and Jon Kleinberg. Proceedings of the National Academy of Sciences (PNAS), 2018.