The datasets were originally crawled from the Meetup.com by authors of this work[1]. It consists of two part:

• meetup_network: the event-group, user-event and user-group relations
• meetup_tag: the tags for groups and users

[1] X. Liu, Q. He, Y. Tian, W.-C. Lee, J. McPherson, and J. Han, “Event- based social networks: linking the online and offline social worlds,” in Proceedings of the 18th ACM SIGKDD international conference on Knowledge discovery and data mining, 2012, pp. 1032–1040.