Stack Exchange — scicomp.stackexchange.com

The content of scicomp.stackexchange.com (https://scicomp.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 79,411 rows: 25,744 posts (11,336 questions, 13,817 answers, 290 tag wiki excerpts, 290 tag wikis, 8 posts of type 6 and 3 posts of type 7) and 53,667 comments, written between 29 November 2011 and 31 March 2024. Beside it are 35,693 user accounts, 108,582 votes, 49,553 badges awarded, 363 tags, 85,560 post revisions and 1,585 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 242 rows.

#Expertise network#Reputation#Scientific computing#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 5,509 nodes; this view shows the 1,000-node sample the pipeline drew for display. Node size is centrality, colour is community.

5.5K
Nodes
11.3K
Edges
3.72e-04
Density
108
Components
-0.1016
Assortativity
1.1%
Reciprocity
3K
Bridges
Most central nodes
5490.01507
1230.01307
2760.01053
5290.00835
81380.00763
1640.00744
33040.00726
9880.0069
1030.00672
2380.00654
Content metrics

79,411 records scored · min–maxmean ± 0.675 σ (the interquartile range if the values are roughly normal)mean

x scoreμ 1.393 ± 3.291
min -6max 170
x view countμ 1.1K ± 3.8K
min 9max 140.1K
x answer countμ 1.219 ± 1.202
min 0max 23
x comment countμ 2.085 ± 2.809
min 0max 62
x favorite count0.9% true
true 0.9%false 99.1%
9.9
Flesch–Kincaid grade
US school grade level
11.1
Automated readability index
Frequent terms
fracmatrixproblemusetimemethodfunctionsolutionlikepartialequationrightcodeendquestionmathbfpointneedsolveorderdeltawantsystemmethodsleftlinearknowcasewaynumberboundarydonerrorexamplethinkfindanswerdatapointsequationsfinitealgorithmbeginstepvectorvaluesgooddifferentnumericalvalue
Topic clusters

Topic 0

thank
question
answer
post
comment
edit
ask
think

Topic 1

equation
method
time
scheme
solve
condition
solution
step

Topic 2

matrix
eigenvalue
sparse
eigenvector
vector
compute
large
problem

Topic 3

code
memory
mpi
fortran
gpu
use
cpu
run

Topic 4

problem
constraint
optimization
function
convex
method
objective
solve

Topic 5

element
boundary
finite
condition
problem
fem
matrix
equation

Topic 6

mesh
point
vertex
triangle
face
element
cell
node

Topic 7

integral
energy
quadrature
function
double
return
integration
monte
Top hashtags
#include841
#1243
#define178
#2111
#pragma94
#print71
#endif54
#plt50
#mtkarg40
#if36
#mtiipvar34
#scipy32
#sjfw500r31
#number29
#the28
#plot27
#boundary26
#v25
#324
#set24

Computed over the full corpus.

Record

Catalog key
stackexchange-scicomp-stackexchange-com
Authors
Stack Exchange, Inc.
Year
2024
Source paper
Stack Exchange Data Dump
License
CC BY-SA 3.0 / 4.0 (by contribution date) (CC-BY-SA-3.0 AND CC-BY-SA-4.0)
Records
90,868
Nodes
5,509
Edges
11,287 (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/details/stackexchange link checked
Original files as received
The source files, unconverted, kept for reference: mirrored on echo.directory on 2026-10-09, 35.7 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 (79,411 rows), users (35,693 rows), x_votes (108,582 rows), x_badges (49,553 rows), x_tags (363 rows), x_post_history (85,560 rows), x_post_links (1,585 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 — scicomp.stackexchange.com [Data set]. https://stackexchange-scicomp.echo.directory/

MLA

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

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

BibTeX · RIS · CSL-JSON

Similar datasets 10 all with scores →