Stack Exchange — mathematica.stackexchange.com
Stack ExchangeAcademicEngagementKnowledge sharingQ&ASocial graphSoftware development The content of mathematica.stackexchange.com (https://mathematica.stackexchange.com/), a Stack Exchange question-and-answer site, as published in the Stack Exchange Data Dump of April 2024 on the Internet Archive. The posts table holds 741,880 rows: 225,945 posts (93,674 questions, 131,321 answers, 468 tag wiki excerpts, 468 tag wikis, 11 posts of type 6 and 3 posts of type 7) and 515,935 comments, written between 7 December 2010 and 31 March 2024. Beside it are 72,035 user accounts, 1,160,481 votes, 187,453 badges awarded, 830 tags, 807,351 post revisions and 54,708 links between posts. Every answer keeps the question it answers and every comment the post it was written on, so the threads can be rebuilt. The Internet Archive item describes the dump as anonymised; the votes table names the voter in only 1,773 rows.
Cite this dataset at
stackexchange-mathematica.echo.directory
Analytics
The full graph has 22,132 nodes; this view shows the 1,000-node sample the pipeline drew for display. Node size is centrality, colour is community.
Topic 0
Topic 1
Topic 2
Topic 3
Topic 4
Topic 5
Topic 6
Topic 7
Topic 8
Topic 9
Topic 10
Topic 11
Show all 21 topics
Topic 12
Topic 13
Topic 14
Topic 15
Topic 16
Topic 17
Topic 18
Topic 19
Topic 20
Computed over the full corpus.
Record
- Catalog key
stackexchange-mathematica-stackexchange-com- Authors
- Stack Exchange, Inc.
- Year
- 2024
- Source paper
- Stack Exchange Data Dump
- License
- CC BY-SA 2.5 / 3.0 / 4.0 (by contribution date) (CC-BY-SA-2.5 AND CC-BY-SA-3.0 AND CC-BY-SA-4.0)
- Records
- 836,213
- Nodes
- 22,132
- Edges
- 92,289 (directed)
- Nodes are
- user (Stack Exchange account)
- Edges are
- answer collaboration (A answered B's question)
- Attributes
- nodes have attributes; edges have attributes
- Text corpus
- question titles, post bodies, comment text, tag names
- Languages
- en
- Collected
- 2010/2024 (2010s, 2020s)
- Tasks
- From the graph: link prediction, community detection
- Region
- Global (inferred: the platform is used worldwide)
Provenance
- Originally published at
- https://archive.org/details/stackexchange unverified
- Original files as received
- The source files, unconverted, kept for reference: mirrored on echo.directory on 2026-10-09, 278.2 MB across 1 files. Checksums in MANIFEST.json. For use, start with the data package below.
- Data package
- Version 1.0.0 of this dataset as an ECHO Data Package: posts (741,880 rows), users (72,035 rows), x_votes (1,160,481 rows), x_badges (187,453 rows), x_tags (830 rows), x_post_history (807,351 rows), x_post_links (54,708 rows).
- Structure
- Temporal (timestamped), Node attributes, Text, Threaded conversations
How to cite
BibTeX
@misc{echo2026,
title = {ECHO: Exploratory Compendium of Humanity Online},
author = {Switzer, Braden and Zafarani, Reza},
year = {2026},
url = {https://echo.directory},
note = {Syracuse University}
}
@misc{stackexchange_2024,
title = {Stack Exchange Data Dump},
author = {{Stack Exchange, Inc.}},
year = {2024},
month = {apr},
publisher = {Internet Archive},
url = {https://archive.org/details/stackexchange}
} APA
Switzer, B., & Zafarani, R. (2026). ECHO: Exploratory Compendium of Humanity Online [Data repository]. Syracuse University. https://echo.directory
Stack Exchange, Inc. (2024). Stack Exchange — mathematica.stackexchange.com [Data set]. https://stackexchange-mathematica.echo.directory/
MLA
Switzer, Braden, and Reza Zafarani. ECHO: Exploratory Compendium of Humanity Online. Syracuse University, 2026, echo.directory.
Stack Exchange, Inc. Stack Exchange — mathematica.stackexchange.com. 2024, stackexchange-mathematica.echo.directory/.