ECHOExploratory Compendium of Humanity Online

Stack Exchange — computergraphics.stackexchange.com

AnalyzedSmallgraphtextStack ExchangeAcademicEngagementKnowledge sharingQ&ASocial graphSoftware development

A Stack Exchange (computergraphics.stackexchange.com) dataset of 1,955 users, 3,120 answer-collaboration edges, 4,024 questions, 4,126 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 computergraphics.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..

#Computer graphics#Expertise network#Reputation#Stack exchange data dump

Cite this dataset at stackexchange-computergraphics-stackexchange-com.echo.directory

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Analytics

The interactive network needs JavaScript.

· graph.json

The full graph has 1,955 nodes; this view shows the 1,000-node sample the pipeline drew for display. Node size is centrality, colour is community.

2K
Nodes
3.1K
Edges
8.17e-04
Density
69
Components
-0.1375
Assortativity
0.7%
Reciprocity
1.2K
Bridges
Most central nodes
560.02303
2310.01842
74620.01842
52560.0174
23080.01484
1100.00972
140.0087
1160.00819
132730.00819
160.00819
Content metrics

8,150 records scored · min–maxmean ± 0.675 σ (the interquartile range if the values are roughly normal)mean

scoreμ 3.312 ± 4.888
min -5max 79
view countμ 546.492 ± 2.4K
min 0max 75.4K
answer countavg 0.51 / 10
0std 0.7710
comment countμ 1.748 ± 2.596
min 0max 53
9.3
Flesch–Kincaid grade
US school grade level
10.3
Automated readability index
Frequent terms
ampuselikepointimagelightquotfloatshaderneedtextureraycolorwayspacecodepixeldonwantvertexmatrixquestionnormalcamerarenderingdatapointsdifferentknowvec3vectorrightsurfacevaluevaluesbufferfunctioncaseproblemexamplethinkdirectiontimeopenglpositionworkintobjectanswercoordinates
Topic clusters

Topic 0

question
answer
thank
post
edit
think
link
code

Topic 1

matrix
amp
camera
vector
rotation
projection
coordinate
space

Topic 2

color
value
colour
rgb
gamma
image
srgb
alpha

Topic 3

brdf
light
specular
diffuse
surface
sample
direction
pdf

Topic 4

vertex
edge
triangle
mesh
polygon
face
normal
algorithm

Topic 5

texture
shader
fragment
stencil
buffer
pass
use
depth

Topic 6

curve
mark
point
intersection
spline
line
segment
bezier

Topic 7

ray
trace
sphere
def
return
tracing
object
intersection

Topic 8

path
light
ray
sample
trace
tracer
bounce
hit

Topic 9

filter
blur
pixel
gaussian
image
edge
sample
kernel

Topic 10

gpu
nvidia
cpu
graphic
driver
card
amd
cuda

Topic 11

buffer
datum
vao
vertex
vbo
attribute
bind
index
Show all 16 topics

Topic 12

opengl
version
error
function
extension
glgeterror
support
profile

Topic 13

vulkan
api
opengl
support
driver
hardware
gpu
extension

Topic 14

gltf
buffer
datum
descriptor
file
array
accessor
heap

Topic 15

noise
perlin
frequency
simplex
grid
function
octave
int
Top hashtags
#include333
#version247
#define218
#1104
#254
#endif52
#pragma36
#ifdef33
#extension28
#if20
#318
#else17
#vuid11
#ifndef8
#print7
#06
#0000005
#395
#45
#ffaa555

Computed over the full corpus.

Record

Catalog key
stackexchange-computergraphics-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
26,739
Nodes
1,955
Edges
3,120 (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
2015/2024 (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, 12.0 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 — computergraphics.stackexchange.com [Data set]. https://stackexchange-computergraphics-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 — computergraphics.stackexchange.com. 2025, stackexchange-computergraphics-stackexchange-com.echo.directory/.

BibTeX · RIS · CSL-JSON

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