tags-math-sx

Overview This is a temporal higher-order network dataset, which here means a sequence of timestamped hyperedges where each hyperedge is a set of nodes. In this dataset, nodes are tags, and hyperedges are the sets of tags applied to questions on math.stackexchange.com. Each hyperedge corresponds to all of the tags used in a post, and each node in a hyperedge corresponds to a tag. The timestamps are normalized so that the earliest tag starts at 0 and are in millisecond resolution. Statistics Some basic statistics of this dataset are: number of nodes: 1,629 number of timestamped hyperedges: 822,059 number of unique hyperedges: 174,933 Source of original data Source: tags-math-sx dataset 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.