Stack Exchange — materials.stackexchange.com
The content of materials.stackexchange.com (https://materials.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 26,663 rows: 9,087 posts (3,915 questions, 4,237 answers, 462 tag wiki excerpts, 462 tag wikis, 7 posts of type 6 and 4 posts of type 7) and 17,576 comments, written between 28 April 2020 and 31 March 2024. Beside it are 7,894 user accounts, 64,924 votes, 14,601 badges awarded, 457 tags, 32,620 post revisions and 1,255 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 231 rows.
Cite this dataset at
stackexchange-materials.echo.directory
Analytics
The full graph has 1,106 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 26 topics
Topic 12
Topic 13
Topic 14
Topic 15
Topic 16
Topic 17
Topic 18
Topic 19
Topic 20
Topic 21
Topic 22
Topic 23
Topic 24
Topic 25
Computed over the full corpus.
Record
- Catalog key
stackexchange-materials-stackexchange-com- Authors
- Stack Exchange, Inc.
- Year
- 2024
- Source paper
- Stack Exchange Data Dump
- License
- CC BY-SA 4.0 (CC-BY-SA-4.0)
- Records
- 30,219
- Nodes
- 1,106
- Edges
- 2,902 (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
- 2020/2024 (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 link checked
- Original files as received
- The source files, unconverted, kept for reference: mirrored on echo.directory on 2026-10-09, 11.8 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 (26,663 rows), users (7,894 rows), x_votes (64,924 rows), x_badges (14,601 rows), x_tags (457 rows), x_post_history (32,620 rows), x_post_links (1,255 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 — materials.stackexchange.com [Data set]. https://stackexchange-materials.echo.directory/
MLA
Switzer, Braden, and Reza Zafarani. ECHO: Exploratory Compendium of Humanity Online. Syracuse University, 2026, echo.directory.
Stack Exchange, Inc. Stack Exchange — materials.stackexchange.com. 2024, stackexchange-materials.echo.directory/.