Combinatorial species

en

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Combinatorial species

Quality:

Combinatorial species - endofunctor on the category of finite sets and bijections, which can be used to analyse discrete structures in terms of generating functions. Article “Combinatorial species” in English Wikipedia has 44.4 points for quality (as of July 1, 2025). The article contains 15 references and 13 sections. The article also contains templates indicating quality issues, therefore its score was reduced by 2.34 points.

In this language version of Wikipedia the article has the best quality. Also, this article is the most popular in that (English) language version.

In June 2025 the article “Combinatorial species” was edited by 1 authors in English Wikipedia and written by 1 authors in all languages.

Since the creation of article “Combinatorial species”, its content was written by 58 registered users of English Wikipedia and edited by 93 registered Wikipedia users in all languages.

The article is cited 21 times in English Wikipedia and cited 31 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #7554 in January 2003
  • Global: #11532 in January 2003

The highest popularity rank from 2008:

  • Local (English): #619534 in June 2025
  • Global: #964990 in June 2025

There are 4 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

Languages with the highest quality

#LanguageQuality gradeQuality score
1English (en)
Combinatorial species
44.3629
2Romanian (ro)
Specii (matematică)
31.2628
3Spanish (es)
Especies combinatorias
12.7678
4Russian (ru)
Тип структуры
3.1426
More...

The following table shows the most popular language versions of the article.

Most popular in all the time

The most popular language versions of the article "Combinatorial species" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Combinatorial species
117 410
2Romanian (ro)
Specii (matematică)
10 860
3Russian (ru)
Тип структуры
5 769
4Spanish (es)
Especies combinatorias
755
More...

The following table shows the language versions of the article with the highest popularity in the last month.

Most popular in June 2025

The most popular language versions of the article "Combinatorial species" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Combinatorial species
1 479
2Russian (ru)
Тип структуры
40
3Spanish (es)
Especies combinatorias
15
4Romanian (ro)
Specii (matematică)
15
More...

The following table shows the language versions of the article with the highest Authors’ Interest.

The highest AI

Language versions of the article "Combinatorial species" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Combinatorial species
58
2Russian (ru)
Тип структуры
22
3Romanian (ro)
Specii (matematică)
8
4Spanish (es)
Especies combinatorias
5
More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

The highest AI in June 2025

Language versions of the article "Combinatorial species" with the highest AI in June 2025
#LanguageAI awardRelative AI
1English (en)
Combinatorial species
1
2Spanish (es)
Especies combinatorias
0
3Romanian (ro)
Specii (matematică)
0
4Russian (ru)
Тип структуры
0
More...

The following table shows the language versions of the article with the highest number of citations.

The highest CI

Language versions of the article "Combinatorial species" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Combinatorial species
21
2Romanian (ro)
Specii (matematică)
7
3Spanish (es)
Especies combinatorias
2
4Russian (ru)
Тип структуры
1
More...

Scores

Estimated value for Wikipedia:
English:
Global:
Popularity in June 2025:
English:
Global:
Popularity in all years:
English:
Global:
Authors in June 2025:
English:
Global:
Registered authors in all years:
English:
Global:
Citations:
English:
Global:

Quality measures

Interwikis

#LanguageValue
enEnglish
Combinatorial species
esSpanish
Especies combinatorias
roRomanian
Specii (matematică)
ruRussian
Тип структуры

Popularity rank trends

Best Rank English:
#619534
06.2025
Global:
#964990
06.2025

AI rank trends

Best Rank English:
#7554
01.2003
Global:
#11532
01.2003

Local AI rank history

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on Combinatorial species from Wikipedia articles about Mathematical structure, Pólya enumeration theorem, André Joyal, Enumerative combinatorics and Outline of combinatorics. Whereas reading the article about Combinatorial species people most often go to Wikipedia articles on S-object, Container, André Joyal, Generating function and Category theory.

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

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In English Wikipedia the most popular articles on that day were: Ajit Pawar, Border 2, Sharad Pawar, Killing of Alex Pretti, Ilhan Omar, Sunetra Pawar, Todd Monken, Kristi Noem, Wonder Man (miniseries), Gregory Bovino.

About WikiRank

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information