ECHOExploratory Compendium of Humanity Online

Stack Exchange — pt.stackoverflow.com

AnalyzedMediumgraphtextStack ExchangeAcademicEngagementKnowledge sharingQ&ASocial graphSoftware development

A Stack Exchange (pt.stackoverflow.com) dataset of 53,831 users, 141,977 answer-collaboration edges, 153,504 questions, 192,249 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 pt.stackoverflow.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..

#Expertise network#Localized site#Programming#Reputation#Stack exchange data dump

Cite this dataset at stackexchange-pt-stackoverflow-com.echo.directory

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Analytics

The interactive network needs JavaScript.

· graph.json

The full graph has 53,831 nodes; this view shows the 1,000-node sample the pipeline drew for display. Node size is centrality, colour is community.

53.8K
Nodes
142K
Edges
4.90e-05
Density
1.6K
Components
-0.06949
Assortativity
0.7%
Reciprocity
27.6K
Bridges
Most central nodes
49950.01181
64200.00732
356890.00479
6750.00425
41100.00414
300510.00399
21090.00398
115000.00362
271900.00359
600.00344
Content metrics

345,753 records scored · min–maxmean ± 0.675 σ (the interquartile range if the values are roughly normal)mean

scoreμ 1.805 ± 4.775
min -20max 451
view countμ 656.595 ± 3.9K
min 0max 513.7K
answer countμ 0.556 ± 0.861
min 0max 18
comment countμ 1.704 ± 2.512
min 0max 40
13.1
Flesch–Kincaid grade
US school grade level
14.6
Automated readability index
Frequent terms
queparaumanãocomovocêporclassdivpublicstringpodemasnewmaissercódigoexemplovardadosissofunctionfazerphpandroidreturnestádataseuintquotnamenomeelequandojavausarampcasovalorhtmltemvalueformatypeestoutextmesmoarrayassim
Topic clusters

Topic 0

tabela
que
uma
banco
select
sql
para
dados

Topic 1

google
maps
mapa
localização
longitude
map
latitude
api

Topic 2

servidor
que
para
não
uma
php
como
cliente

Topic 3

array
valor
que
uma
int
você
para
vetor

Topic 4

json
página
ajax
que
para
function
uma
var

Topic 5

laravel
controller
mvc
view
model
framework
para
php

Topic 6

imagem
para
imagen
que
upload
uma
image
pixel

Topic 7

background
margin
width
height
css
border
position
color

Topic 8

que
não
uma
para
memória
classe
mais
você

Topic 9

jquery
elemento
css
que
evento
var
exemplo
function

Topic 10

como
que
uma
usar
não
arquivo
função
você

Topic 11

android
public
layout
listview
activity
import
void
view
Show all 14 topics

Topic 12

windows
error
visual
para
studio
que
maven
versão

Topic 13

android
eclipse
para
que
não
app
como
sms
Top hashtags
#include960
#fff262
#define179
#000000157
#000144
#menu136
#ffffff133
#ccc132
#231105
#conteudo98
#22792
#191
#275
#33369
#066
#content62
#ff000058
#import55
#33333354
#div54

Sampled: text metrics from 50K of 1.1M records; topic model from 20K.

Record

Catalog key
stackexchange-pt-stackoverflow-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
1,095,274
Nodes
53,831
Edges
141,977 (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
pt
Collected
2013/2024 (2010s, 2020s)
Tasks
From the graph: link prediction, community detection
Region
Latin America, Europe (inferred: from the language of the data)

Provenance

Originally published at
https://archive.org/download/stackexchange link checked
Hosted copy
Mirrored on echo.directory on 2026-10-09, 435.4 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 — pt.stackoverflow.com [Data set]. https://stackexchange-pt-stackoverflow-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 — pt.stackoverflow.com. 2025, stackexchange-pt-stackoverflow-com.echo.directory/.

BibTeX · RIS · CSL-JSON

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