Context-free grammar

Context-free grammar - type of formal grammar. Article "Context-free grammar" in English Wikipedia has 64.7 points for quality (as of November 1, 2023). The article contains 53 references and 40 sections. The article also contains quality flaw template, which reduce quality score.

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

Since the creation of article "Context-free grammar", its content was written by 299 registered users of English Wikipedia and edited by 875 registered Wikipedia users in all languages.

The article is cited 271 times in English Wikipedia and cited 1401 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #360 in February 2002
• Global: #488 in February 2002

The highest popularity rank from 2008:

• Local (English): #27073 in April 2017
• Global: #42429 in December 2014

There are 28 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 November 1, 2023 (including revision history and pageviews for previous years).

下表顯示了最高品質的文章的語言版本。

#	Language	Quality grade	Quality score
1	English (en) Context-free grammar		64.6609
2	Portuguese (pt) Gramática livre de contexto		43.2492
3	German (de) Kontextfreie Grammatik		31.9259
4	Ukrainian (uk) Контекстно-вільна граматика		29.3773
5	Croatian (hr) Kontekstno neovisna gramatika		26.3675
6	Japanese (ja) 文脈自由文法		22.827
7	Persian (fa) دستور زبان مستقل از متن		22.8028
8	Catalan (ca) Gramàtica lliure de context		22.2169
9	Serbo-Croatian (sh) Kontekstno nezavisna gramatika		21.6063
10	French (fr) Grammaire non contextuelle		19.5258

More...

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

The most popular language versions of the article "Context-free grammar" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Context-free grammar		3 628 738
2	Spanish (es) Gramática libre de contexto		407 876
3	German (de) Kontextfreie Grammatik		371 100
4	Russian (ru) Контекстно-свободная грамматика		267 270
5	Japanese (ja) 文脈自由文法		201 268
6	Chinese (zh) 上下文无关文法		144 005
7	French (fr) Grammaire non contextuelle		137 763
8	Portuguese (pt) Gramática livre de contexto		130 028
9	Polish (pl) Gramatyka bezkontekstowa		104 507
10	Italian (it) Grammatica libera dal contesto		75 750

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

The most popular language versions of the article "Context-free grammar" in October 2023

#	Language	Popularity award	Relative popularity
1	English (en) Context-free grammar		14 103
2	Russian (ru) Контекстно-свободная грамматика		1 487
3	Spanish (es) Gramática libre de contexto		1 180
4	Chinese (zh) 上下文无关文法		908
5	German (de) Kontextfreie Grammatik		749
6	Japanese (ja) 文脈自由文法		638
7	French (fr) Grammaire non contextuelle		448
8	Portuguese (pt) Gramática livre de contexto		377
9	Korean (ko) 문맥 자유 문법		254
10	Polish (pl) Gramatyka bezkontekstowa		245

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

Language versions of the article "Context-free grammar" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Context-free grammar		299
2	German (de) Kontextfreie Grammatik		80
3	French (fr) Grammaire non contextuelle		59
4	Russian (ru) Контекстно-свободная грамматика		55
5	Italian (it) Grammatica libera dal contesto		43
6	Spanish (es) Gramática libre de contexto		30
7	Portuguese (pt) Gramática livre de contexto		28
8	Chinese (zh) 上下文无关文法		26
9	Hungarian (hu) Környezetfüggetlen nyelvtan		24
10	Persian (fa) دستور زبان مستقل از متن		22

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

Language versions of the article "Context-free grammar" with the highest AI in October 2023

#	Language	AI award	Relative AI
1	German (de) Kontextfreie Grammatik		1
2	Japanese (ja) 文脈自由文法		1
3	Arabic (ar) قواعد خالية من السياق		0
4	Catalan (ca) Gramàtica lliure de context		0
5	Czech (cs) Bezkontextová gramatika		0
6	English (en) Context-free grammar		0
7	Spanish (es) Gramática libre de contexto		0
8	Persian (fa) دستور زبان مستقل از متن		0
9	Finnish (fi) Yhteydetön kielioppi		0
10	French (fr) Grammaire non contextuelle		0

More...

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

Language versions of the article "Context-free grammar" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Context-free grammar		271
2	Russian (ru) Контекстно-свободная грамматика		104
3	French (fr) Grammaire non contextuelle		99
4	Persian (fa) دستور زبان مستقل از متن		87
5	Portuguese (pt) Gramática livre de contexto		85
6	Japanese (ja) 文脈自由文法		65
7	Chinese (zh) 上下文无关文法		63
8	Serbian (sr) Контекстно слободна граматика		60
9	Czech (cs) Bezkontextová gramatika		59
10	Spanish (es) Gramática libre de contexto		58

More...

#	Language	Value
ar	Arabic قواعد خالية من السياق
ca	Catalan Gramàtica lliure de context
cs	Czech Bezkontextová gramatika
de	German Kontextfreie Grammatik
en	English Context-free grammar
es	Spanish Gramática libre de contexto
fa	Persian دستور زبان مستقل از متن
fi	Finnish Yhteydetön kielioppi
fr	French Grammaire non contextuelle
gl	Galician Gramática libre de contexto
he	Hebrew דקדוק חופשי-הקשר
hr	Croatian Kontekstno neovisna gramatika
hu	Hungarian Környezetfüggetlen nyelvtan
it	Italian Grammatica libera dal contesto
ja	Japanese 文脈自由文法
ko	Korean 문맥 자유 문법
nl	Dutch Contextvrije grammatica
no	Norwegian Kontekstfri grammatikk
pl	Polish Gramatyka bezkontekstowa
pt	Portuguese Gramática livre de contexto
ru	Russian Контекстно-свободная грамматика
sh	Serbo-Croatian Kontekstno nezavisna gramatika
sk	Slovak Bezkontextová gramatika
sr	Serbian Контекстно слободна граматика
sv	Swedish Kontextfri grammatik
ta	Tamil இடம் சாரா இலக்கணம்
uk	Ukrainian Контекстно-вільна граматика
zh	Chinese 上下文无关文法

Best Rank

English: #27073 04.2017

Global: #42429 12.2014

Best Rank

English: #360 02.2002

Global: #488 02.2002

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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 November, 2023. When calculating current popularity and AI of articles data from October 2023 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2023... More information