Math Overflow temporal network

Dataset information

This is a temporal network of interactions on the stack exchange web site Math Overflow. There are three different types of interactions represented by a directed edge (u, v, t):

• user u answered user v's question at time t (in the graph sx-mathoverflow-a2q)
• user u commented on user v's question at time t (in the graph sx-mathoverflow-c2q)
• user u commented on user v's answer at time t (in the graph sx-mathoverflow-c2a)

The graph sx-mathoverflow contains the union of these graphs. These graphs were constructed from the Stack Exchange Data Dump. Node ID numbers correspond to the 'OwnerUserId' tag in that data dump.

Dataset statistics (sx-mathoverflow)
Nodes	24818
Temporal Edges	506550
Edges in static graph	239978
Time span	2350 days

Dataset statistics (sx-mathoverflow-a2q)
Nodes	21688
Temporal Edges	107581
Edges in static graph	90489
Time span	2350 days

Dataset statistics (sx-mathoverflow-c2q)
Nodes	16836
Temporal Edges	203639
Edges in static graph	101329
Time span	2349 days

Dataset statistics (sx-mathoverflow-c2a)
Nodes	13840
Temporal Edges	195330
Edges in static graph	81121
Time span	2350 days

Source (citation)

• Ashwin Paranjape, Austin R. Benson, and Jure Leskovec. "Motifs in Temporal Networks." In Proceedings of the Tenth ACM International Conference on Web Search and Data Mining, 2017.

Files

File	Description
sx-mathoverflow.txt.gz	All interactions
sx-mathoverflow-a2q.txt.gz	Answers to questions
sx-mathoverflow-c2q.txt.gz	Comments to questions
sx-mathoverflow-c2a.txt.gz	Comments to answers

Data format

where edges are separated by a new line and

• SRC: id of the source node (a user)
• TGT: id of the target node (a user)
• UNIXTS: Unix timestamp (seconds since the epoch)