Stack Exchange — cs.stackexchange.com

The content of cs.stackexchange.com (https://cs.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 301,154 rows: 105,373 posts (48,390 questions, 56,255 answers, 356 tag wiki excerpts, 356 tag wikis, 13 posts of type 6 and 3 posts of type 7) and 195,781 comments, written between 25 November 2008 and 31 March 2024. Beside it are 138,727 user accounts, 411,166 votes, 182,975 badges awarded, 668 tags, 360,340 post revisions and 11,005 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 732 rows.

#Computer science#Expertise network#Stack exchange data dump

Download data package README Original files as received BibTeX JSONSimilar datasets

Analytics

The interactive network needs JavaScript.

· graph.json

The full graph has 24,745 nodes; this view shows the 1,000-node sample the pipeline drew for display. Node size is centrality, colour is community.

24.7K
Nodes
45.6K
Edges
7.45e-05
Density
473
Components
-0.1398
Assortativity
0.3%
Reciprocity
14.3K
Bridges
Most central nodes
3360.00485
566870.00432
7550.00339
13420.00331
98640.00295
126230.00263
980.00259
49110.00234
492610.0021
170400.00206
Content metrics

301,154 records scored · min–maxmean ± 0.675 σ (the interquartile range if the values are roughly normal)mean

x scoreμ 1.256 ± 4.146
min -12max 462
x view countμ 1.2K ± 5.3K
min 3max 347.9K
x answer countμ 1.163 ± 1.036
min 0max 32
x comment countμ 1.859 ± 2.542
min 0max 45
x favorite count0.4% true
true 0.4%false 99.6%
9.0
Flesch–Kincaid grade
US school grade level
9.9
Automated readability index
Frequent terms
problemtimealgorithmquestionnumbersetlanguageanswercaseuselikeexamplefindgivenknowdonfunctionwayneedgraphinputrightlogthinkletpossiblesolutionwantmachinetreestatedatadifferentsizevaluecomplexityturingtextpointleftprooflengthregularunderstandfracfollowingarraycodeordernode
Topic clusters

Topic 0

question
answer
thank
ask
edit
post
comment
think

Topic 1

graph
vertex
edge
path
node
algorithm
weight
problem

Topic 2

tree
array
element
node
sort
hash
number
time

Topic 3

type
memory
instruction
address
language
system
cpu
program

Topic 4

time
polynomial
complexity
problem
sat
algorithm
reduction
formula

Topic 5

problem
algorithm
solution
optimal
image
function
set
neural

Topic 6

machine
ture
halt
input
halting
tape
language
accept

Topic 7

grammar
language
regular
context
free
production
parse
generate

Topic 8

state
dfa
accept
regular
nfa
automata
automaton
language
Top hashtags
#1722
#p472
#2401
#include362
#3165
#sat150
#define148
#_a141
#_b123
#v110
#a109
#094
#x75
#474
#b73
#y65
#_60
#w58
#555
#c48

Computed over the full corpus.

Record

Catalog key
stackexchange-cs-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
349,972
Nodes
24,745
Edges
45,645 (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
2008/2024 (2000s, 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 link checked
Original files as received
The source files, unconverted, kept for reference: mirrored on echo.directory on 2026-10-09, 124.9 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 (301,154 rows), users (138,727 rows), x_votes (411,166 rows), x_badges (182,975 rows), x_tags (668 rows), x_post_history (360,340 rows), x_post_links (11,005 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 — cs.stackexchange.com [Data set]. https://stackexchange-cs.echo.directory/

MLA

Switzer, Braden, and Reza Zafarani. ECHO: Exploratory Compendium of Humanity Online. Syracuse University, 2026, echo.directory.

Stack Exchange, Inc. Stack Exchange — cs.stackexchange.com. 2024, stackexchange-cs.echo.directory/.

BibTeX · RIS · CSL-JSON

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