Wikipedia article depth

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The depth or editing depth of Wikipedia is one of several possible rough indicators of the encyclopedia's collaborative quality, showing how frequently its articles are updated.

It does not refer to academic quality, which cannot be computed, but to Wikipedian quality, i.e. the depth of collaborativeness—a descriptor that is highly relevant for a Wikipedia.

Definition[edit]

The formula assumes that a relatively high number of page edits and the presence of support pages means articles have been updated. And the latter support pages are assumed to be a more important factor.

In the list of Wikipedias, depth is currently defined as:

\text{Depth}=\frac{\text{Edits}}{\text{Articles}}\cdot \frac{\text{NonArticles}}{\text{Articles}}\cdot \left( 1-\frac{\text{Articles}}{\text{Total}} \right)

The depth can be simplified to the equivalent formula below:

\text{Depth}=\frac{\text{Edits}}{\text{Total}}\cdot \left( \frac{\text{NonArticles}}{\text{Articles}} \right)^{2}

NonArticles are user pages, redirects, images, "project" pages, categories, templates, and all talk pages. Total is simply NonArticles + Articles.

English Wikipedia has depth of 891 = 21.24 × 41.96 and is the deepest one for Wikipedias with number of articles greater than 10000.

The largest depth for the unblocked Wikipedias has Ripuarian Wikipedia which has the depth 1406 = 215.77 × 6.52.

The smallest depth has Minangkabau Wikipedia which has the depth 0.6193 = 3.44 × 0.18.

Background[edit]

The measurement of depth was introduced after some limitations of the classic measurement of article count were realized. This insight is similar to the various suggestions to redefine the ordering of Wikipedias that appear on the international front page www.wikipedia.org. See Top Ten Wikipedias and Talk:Www.wikipedia.org portal.

Still in early February 2006 the list of Wikipedias only listed the article count. But on February 10, 2006, this changed into a table format that also listed the total edit count, number of users and admins.

The depth column first appeared on November 29, 2006. The initial definition was edits/articles, giving the English Wikipedia a value of 62. This definition changed already the next day to (Edits/Articles) × (Non-Articles/Articles), giving the English Wikipedia a value of 209. The next definition change occurred on October 9, 2007, when the Stub-ratio factor was appended. The stub ratio is (1-(Articles/Total)).[1] The new value for the English Wikipedia was 288. The formula changed again on October 17, October 28, and finally on April 11, 2008.

The discussion of the introduction of the depth parameter is found in Talk:List of Wikipedias/Archive 4. Early on, there were discussions of whether depth implies quality. The changes in October 2007 were discussed in Talk:List of Wikipedias/Archive 5#Depth 2.0.

10 000+ articles[edit]

The table shows the list of Wikipedias with over 10,000 articles sorted by Depth.
Data on this page is automatically updated every day (Purge).

N.B.: Default sorting is by language code, but it is possible to sort the table by any column.



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31
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35
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39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
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56
57
58
59
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61
62
63
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66
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71
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73
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84
85
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103
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125
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129
130
Language Language (local) Wiki Depth Articles Edits Total







Afrikaans Afrikaans af 33.77 36,583 1,430,979 89,855
Alemannic Alemannisch als 24.79 19,672 660,169 45,338
Amharic አማርኛ am 41.35 12,963 342,309 42,246
Aragonese Aragonés an 81.43 30,717 1,610,305 99,682
Arabic العربية ar 217.56 380,311 19,365,534 2,323,288
Egyptian Arabic مصرى arz 310.4 14,392 732,201 114,787
Asturian Asturianu ast 10.36 26,496 851,784 46,405
Azerbaijani Azərbaycanca az 33.9 98,654 3,549,743 251,667
Bashkir Башҡорт ba 14.07 35,016 535,823 88,341
Bavarian Boarisch bar 40.83 14,628 474,431 42,654
Samogitian Žemaitėška bat-smg 7.2 14,060 343,263 24,042
Belarusian Беларуская be 17.98 99,959 2,179,272 240,868
Belarusian (Taraškievica) Беларуская (тарашкевіца) be-x-old 31.91 57,009 1,880,165 147,075
Bulgarian Български bg 23.45 205,727 7,206,376 456,460
Bengali বাংলা bn 476.88 37,274 1,968,604 407,703
Bishnupriya Manipuri বিষ্ণুপ্রিয়া মণিপুরী bpy 23.52 25,060 804,543 57,570
Breton Brezhoneg br 16.73 54,649 1,737,165 111,211
Bosnian Bosanski bs 157.28 62,489 2,836,398 329,667
Buginese Basa Ugi bug 0.94 14,103 197,929 18,249
Catalan Català ca 31.07 472,102 15,992,573 1,189,977
Chechen Нохчийн ce 0.17 100,452 833,301 115,742
Cebuano Sinugboanong Binisaya ceb 3.55 1,208,890 5,783,317 2,791,098
Sorani کوردی ckb 132.85 15,866 495,462 96,623
Czech Čeština cs 41.04 330,805 13,213,549 876,652
Chuvash Чăваш cv 3.84 33,550 571,657 53,687
Welsh Cymraeg cy 61.03 65,448 5,284,806 152,224
Danish Dansk da 68.64 208,863 8,603,752 703,748
German Deutsch de 97.34 1,848,139 150,683,917 5,252,496
Greek Ελληνικά el 68.27 109,271 5,512,498 330,252
English English en 891.31 4,953,773 786,836,001 37,043,301
Esperanto Esperanto eo 17.04 217,739 5,805,529 474,726
Spanish Español es 189.95 1,196,640 89,980,521 5,137,358
Estonian Eesti et 30.61 137,464 4,375,333 353,721
Basque Euskara eu 26.3 209,428 5,092,102 568,187
Persian فارسی fa 211.77 465,094 20,561,938 3,088,002
Finnish Suomi fi 46.05 377,759 15,995,792 1,027,426
Faroese Føroyskt fo 36.46 11,306 329,976 32,845
French Français fr 206.08 1,656,090 120,349,440 7,649,892
West Frisian Frysk fy 20.65 32,494 789,680 79,273
Irish Gaeilge ga 5.62 35,632 800,299 58,458
Scottish Gaelic Gàidhlig gd 22.54 13,269 517,315 27,899
Galician Galego gl 21.3 124,590 3,736,795 282,749
Gujarati ગુજરાતી gu 11.17 25,694 401,731 58,443
Hebrew עברית he 252.58 176,775 18,309,605 742,551
Hindi हिन्दी hi 100.81 101,156 2,990,627 527,834
Croatian Hrvatski hr 34.11 156,329 4,743,883 431,765
Haitian Krèyol ayisyen ht 0.36 52,464 710,272 61,752
Hungarian Magyar hu 75.41 329,771 17,066,332 1,034,979
Armenian Հայերեն hy 26.68 184,131 3,467,713 569,550
Interlingua Interlingua ia 12.23 14,533 556,181 25,392
Indonesian Bahasa Indonesia id 80.6 364,767 10,883,884 1,633,450
Ido Ido io 6.02 26,136 933,951 39,284
Icelandic Íslenska is 43.66 39,642 1,565,014 108,657
Italian Italiano it 110.05 1,219,718 80,037,905 4,124,321
Japanese 日本語 ja 71.1 980,133 57,633,503 2,802,700
Javanese Basa Jawa jv 18.08 48,503 955,067 122,305
Georgian ქართული ka 35.01 98,189 3,061,955 271,057
Kazakh Қазақша kk 8.91 212,218 2,430,869 499,229
Kannada ಕನ್ನಡ kn 69.91 16,363 539,574 63,177
Korean 한국어 ko 86.98 325,697 16,527,493 1,114,498
Kurdish Kurdî ku 26.42 21,278 675,425 51,468
Kirghiz Кыргызча ky 0.65 36,411 211,032 50,779
Latin Latina la 10.22 120,591 3,032,937 225,750
Luxembourgish Lëtzebuergesch lb 29.93 44,210 1,925,703 99,065
Lombard Lumbaart lmo 32.74 32,010 1,059,484 83,392
Lithuanian Lietuvių lt 19.98 173,466 4,983,237 390,546
Latvian Latviešu lv 92.98 62,377 2,470,204 256,018
Banyumasan Basa Banyumasan map-bms 8.24 12,961 205,871 26,248
Malagasy Malagasy mg 10.26 81,094 810,265 214,806
Minangkabau Bahaso Minangkabau min 0.619 221,653 1,086,100 315,698
Macedonian Македонски mk 139.97 83,155 4,196,569 378,678
Malayalam മലയാളം ml 284.72 39,868 2,263,294 273,884
Mongolian Монгол mn 41.26 14,710 461,619 43,822
Marathi मराठी mr 72.84 42,269 1,396,234 167,048
Hill Mari Кырык Мары (Kyryk Mary) mrj 1.21 10,089 97,337 14,354
Malay Bahasa Melayu ms 15.79 275,206 4,030,279 745,642
Burmese language မ္ရန္‌မာစာ my 2.65 31,243 272,463 53,830
Mazandarani مَزِروني mzn 6.23 12,105 134,259 25,195
Nahuatl Nāhuatl nah 20.79 10,778 413,090 22,160
Neapolitan Nnapulitano nap 24.19 14,346 692,263 28,716
Low Saxon Plattdüütsch nds 31.23 23,890 784,956 61,158
Nepali नेपाली ne 20.64 26,513 494,809 72,681
Newari नेवारी new 12.25 72,367 828,777 195,319
Dutch Nederlands nl 10.85 1,833,315 45,755,163 3,504,405
Norwegian (Nynorsk) Nynorsk nn 18.13 121,731 2,949,537 282,017
Norwegian (Bokmål) Norsk (Bokmål) no 34.02 417,452 14,159,427 1,094,335
Occitan Occitan oc 5.37 88,506 2,116,184 141,529
Ossetian Иронау os 94.64 10,192 482,387 38,032
Punjabi ਪੰਜਾਬੀ pa 22.4 18,219 262,574 59,144
Polish Polski pl 21.53 1,130,518 43,448,621 2,350,751
Piedmontese Piemontèis pms 2.12 63,834 854,793 94,800
Western Panjabi شاہ مکھی پنجابی pnb 0.48 33,955 423,414 41,270
Portuguese Português pt 131.26 885,184 44,201,064 3,896,079
Quechua Runa Simi qu 34.88 19,344 657,494 51,237
Romanian Română ro 75.63 348,890 10,248,311 1,515,740
Russian Русский ru 127.76 1,248,804 85,246,232 4,487,320
Sanskrit संस्कृतम् sa 52.77 10,074 316,485 34,092
Sakha Саха тыла sah 50.86 10,451 341,059 33,974
Sicilian Sicilianu scn 20.14 25,278 748,134 56,436
Scots Scots sco 30.22 32,939 515,358 120,504
Serbo-Croatian Srpskohrvatski / Српскохрватски sh 413.51 426,231 20,252,160 4,521,725
Sinhalese සිංහල si 90.69 11,124 351,072 51,826
Simple English Simple English simple 171.5 114,609 12,576,929 373,133
Slovak Slovenčina sk 18.12 206,060 6,130,096 441,473
Slovenian Slovenščina sl 24.16 147,429 4,657,012 344,521
Albanian Shqip sq 35.28 50,864 1,689,623 136,840
Serbian Српски sr 66.71 323,691 11,516,593 1,164,273
Sundanese Basa Sunda su 18.45 18,361 477,991 41,640
Swedish Svenska sv 11.7 1,975,565 30,305,009 4,612,071
Swahili Kiswahili sw 30.85 29,518 996,521 74,283
Tamil தமிழ் ta 40.91 68,729 1,984,293 212,620
Telugu తెలుగు te 39.15 60,657 1,611,501 191,495
Tajik Тоҷикӣ tg 13.74 37,814 724,458 86,158
Thai ไทย th 270.28 96,801 6,438,407 570,544
Tagalog Tagalog tl 38.58 63,344 1,559,367 206,539
Turkish Türkçe tr 242.03 251,230 16,924,314 1,358,617
Tatar Татарча tt 22.84 67,230 2,111,952 153,976
Ukrainian Українська uk 36.88 587,361 16,851,849 1,730,246
Urdu اردو ur 158.33 76,307 4,397,373 345,413
Uzbek O‘zbek uz 60.93 127,926 2,388,116 648,135
Venetian Vèneto vec 77.35 10,618 589,925 32,556
Vietnamese Tiếng Việt vi 20.21 1,138,846 21,528,659 3,073,326
Volapük Volapük vo 15.24 120,224 3,306,657 249,019
Walloon Walon wa 22.54 13,879 323,471 35,800
Waray-Waray Winaray war 3.57 1,259,253 6,271,412 2,869,140
Yiddish ייִדיש yi 48.14 12,836 519,986 36,399
Yoruba Yorùbá yo 5.3 31,100 549,145 53,432
Chinese 中文 zh 156.11 837,852 38,269,403 4,378,995
Min Nan Bân-lâm-gú zh-min-nan 32.61 35,110 593,404 128,350
Cantonese 粵語 zh-yue 31.16 38,279 992,386 109,138


Trends[edit]

Trend during 2008.

The table shows how the depth of the largest 30 languages[2] of Wikipedia has developed over time.

Date en de fr pl ja it nl pt es ru sv zh no fi ca uk tr ro vo cs hu eo sk da id he ar ko lt sr
Today 891 97 206 22 71 110 11 131 190 128 12 156 34 46 31 37 242 76 15 41 75 17 18 69 81 253 218 87 20 67
1 July 2013 769 89 164 19 64 95 9 112 170 106 15 100 28 45 26 38 212 88 15 39 100 18 18 66 112 249 235 82 18 64
1 Jan 2013 731 89 165 17 61 91 18 103 175 104 38 108 28 44 24 38 214 81 15 38 99 18 15 62 88 242 243 77 17 57
1 July 2012 688 88 157 16 58 89 19 96 166 99 44 148 28 44 22 36 207 101 13 38 98 17 15 58 89 236 241 76 16 52
1 Jan 2012 648 89 151 14 56 85 18 88 158 92 50 90 29 44 20 35 207 97 12 37 92 16 24 39 72 231 230 74 17 51
1 July 2011 613 89 145 13 54 81 30 82 163 91 48 83 27 43 18 34 192 93 12 37 90 16 22 36 63 227 225 71 17 47
1 Jan 2011 572 87 140 10 51 77 29 71 179 90 46 80 25 41 17 33 185 86 11 34 86 16 20 35 61 220 208 62 17 40
1 July 2010 522 88 139 11 49 75 30 77 189 91 35 68 24 39 18 31 177 73 10 32 81 15 19 34 61 208 197 51 19 47
1 Jan 2010 478 86 128 10 46 71 27 74 141 87 31 63 23 37 17 25 159 54 9 33 71 14 16 31 42 205 167 43 19 46
1 July 2009 440 84 121 10 43 66 25 71 116 81 28 63 22 35 17 26 132 36 8 32 70 13 14 28 35 184 142 39 17 56
1 Jan 2009 413 81 115 9 41 57 23 66 94 74 24 71 20 32 17 15 95 30 8 28 64 13 10 26 30 177 117 36 15 52
1 July 2008 368 77 101 8 38 47 21 58 69 63 19 56 20 30 15 10 66 25 8 26 51 12 8 24 24 159 108 34 14 46
1 Jan 2008 302 70 79 9 33 43 20 49 51 56 15 59 18 27 14 12 43 17 3 24 39 11 7 21 20 132 107 27 12 35
1 July 2007 320 100 59 15 36 59 23 31 39 32
1 Jan 2007 224 87 45 12 32 37 19 25 34 24

See also[edit]

Lists of Wikipedias by various criteria: edit

Notes[edit]

  1. List of Wikipedias
  2. At November 2008.