Stack Exchange — academia.stackexchange.com
A Stack Exchange (academia.stackexchange.com) dataset of 29,641 users, 86,788 answer-collaboration edges, 43,792 questions, 103,840 answers, collected by Stack Exchange, Inc. via the annual Stack Exchange Data Dump. Each record contains user nodes (reputation, badge counts, vote history), directed weighted edges (answerer→asker, weight=answer score, count=interactions, accepted=bool), post text, tag distribution. User collaboration network from academia.stackexchange.com — directed weighted graph where edges represent knowledge-sharing relationships (A answered B's question), with edge weight reflecting answer quality. Enables prestige hierarchy, community detection, and expertise flow analysis.. Suitable for expertise network analysis, reputation systems, community detection, knowledge flow, PageRank-based authority ranking, Q&A platform dynamics..
Cite this dataset at
stackexchange-academia-stackexchange-com.echo.directory
Analytics
The full graph has 29,641 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
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Topic 9
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Topic 11
Show all 29 topics
Topic 12
Topic 13
Topic 14
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Topic 21
Topic 22
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Topic 24
Topic 25
Topic 26
Topic 27
Topic 28
Sampled: text metrics from 50K of 559.3K records; topic model from 20K.
Record
- Catalog key
stackexchange-academia-stackexchange-com- Authors
- Stack Exchange, Inc.
- Year
- 2025
- Source paper
- Stack Exchange Data Dump
- License
- CC BY-SA 2.5 / 3.0 / 4.0 (by post date) (CC-BY-SA-2.5 AND CC-BY-SA-3.0 AND CC-BY-SA-4.0)
- Records
- 559,297
- Nodes
- 29,641
- Edges
- 86,788 (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
- 2011/2024 (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/download/stackexchange link checked
- Hosted copy
- Mirrored on echo.directory on 2026-10-09, 189.4 MB across 1 files. Checksums in MANIFEST.json.
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_2025,
title = {Stack Exchange Data Dump},
author = {{Stack Exchange, Inc.}},
year = {2025},
publisher = {Internet Archive},
url = {https://archive.org/download/stackexchange}
} APA
Switzer, B., & Zafarani, R. (2026). ECHO: Exploratory Compendium of Humanity Online [Data repository]. Syracuse University. https://echo.directory
Stack Exchange, Inc. (2025). Stack Exchange — academia.stackexchange.com [Data set]. https://stackexchange-academia-stackexchange-com.echo.directory/
MLA
Switzer, Braden, and Reza Zafarani. ECHO: Exploratory Compendium of Humanity Online. Syracuse University, 2026, echo.directory.
Stack Exchange, Inc. Stack Exchange — academia.stackexchange.com. 2025, stackexchange-academia-stackexchange-com.echo.directory/.