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 915 = 21.13 × 43.28 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 1403 = 214.61 × 6.54.

The smallest depth has Chechen Wikipedia which has the depth 0.136 = 7.37 × 0.018.

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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63
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132
Language Language (local) Wiki Depth Articles Edits Total Pages







Afrikaans Afrikaans af 32.53 38,602 1,473,778 94,289
Alemannic Alemannisch als 23.81 20,711 685,407 47,244
Amharic አማርኛ am 41.32 13,023 343,934 42,422
Aragonese Aragonés an 80.46 31,173 1,620,227 100,980
Arabic العربية ar 225.15 407,971 20,946,106 2,539,470
Egyptian Arabic مصرى arz 325.61 14,704 755,863 120,754
Asturian Asturianu ast 4.24 45,713 1,029,311 70,317
Azerbaijani Azərbaycanca az 34.6 102,844 3,702,031 264,408
Bashkir Башҡорт ba 15.37 35,468 565,179 91,391
Bavarian Boarisch bar 90.43 17,288 581,199 77,205
Samogitian Žemaitėška bat-smg 7.18 14,676 348,850 25,260
Belarusian Беларуская be 18.89 112,095 2,338,773 280,975
Belarusian (Taraškievica) Беларуская (тарашкевіца) be-tarask 32.01 58,105 1,906,879 150,453
Bulgarian Български bg 23.71 212,977 7,519,154 473,131
Bengali বাংলা bn 449.61 40,946 2,094,491 437,961
Bishnupriya Manipuri বিষ্ণুপ্রিয়া মণিপুরী bpy 23.56 25,061 805,083 57,593
Breton Brezhoneg br 15.79 57,098 1,765,326 115,013
Bosnian Bosanski bs 135.32 68,126 2,907,252 338,570
Buginese Basa Ugi bug 0.95 14,104 198,122 18,277
Catalan Català ca 30.86 495,509 16,779,371 1,245,384
Chechen Нохчийн ce 0.14 118,828 995,334 134,966
Cebuano Sinugboanong Binisaya ceb 1.93 1,976,652 7,604,178 3,956,327
Sorani کوردی ckb 126.53 16,637 506,730 99,607
Czech Čeština cs 40.72 344,839 13,700,930 912,787
Chuvash Чăваш cv 4 34,045 579,322 55,039
Welsh Cymraeg cy 54.39 69,317 5,303,985 157,372
Danish Dansk da 67.9 214,179 8,784,088 719,190
German Deutsch de 101.57 1,906,612 156,317,831 5,516,159
Greek Ελληνικά el 70.93 114,296 5,790,408 351,435
English English en 914.63 5,075,342 812,846,374 38,465,796
Esperanto Esperanto eo 16.92 225,676 5,957,886 492,606
Spanish Español es 197.82 1,233,140 94,323,741 5,372,360
Estonian Eesti et 29.87 143,513 4,489,323 368,094
Basque Euskara eu 20.92 241,310 5,394,502 613,579
Persian فارسی fa 208.72 483,008 21,327,894 3,175,673
Finnish Suomi fi 45.62 388,292 16,349,226 1,054,225
Faroese Føroyskt fo 39.32 11,757 347,134 35,250
French Français fr 206.52 1,722,670 125,458,206 7,957,520
West Frisian Frysk fy 21.06 33,368 799,646 82,579
Irish Gaeilge ga 5.5 36,806 814,149 60,291
Scottish Gaelic Gàidhlig gd 22.02 13,643 525,203 28,577
Galician Galego gl 22.03 127,819 3,903,951 291,844
Gujarati ગુજરાતી gu 12.79 26,106 418,292 62,068
Hebrew עברית he 250.2 185,214 19,022,523 777,514
Hindi हिन्दी hi 113.52 101,327 3,129,474 556,661
Croatian Hrvatski hr 32.76 161,613 4,828,856 441,208
Haitian Krèyol ayisyen ht 0.37 52,471 711,480 61,890
Hungarian Magyar hu 58.19 380,812 17,844,340 1,103,040
Armenian Հայերեն hy 30.09 194,975 3,973,642 616,115
Interlingua Interlingua ia 6.86 19,029 576,310 30,491
Indonesian Bahasa Indonesia id 89.51 374,303 11,917,416 1,719,415
Ido Ido io 6.34 26,488 941,537 40,280
Icelandic Íslenska is 43.18 40,302 1,579,048 110,293
Italian Italiano it 117.02 1,252,081 84,033,598 4,324,811
Japanese 日本語 ja 73 1,001,543 59,530,847 2,885,522
Javanese Basa Jawa jv 19.21 48,669 972,249 125,236
Georgian ქართული ka 34.52 102,954 3,142,773 285,149
Kazakh Қазақша kk 8.79 214,137 2,492,834 497,941
Kannada ಕನ್ನಡ kn 55.09 19,591 594,323 69,216
Korean 한국어 ko 90.46 341,740 17,575,821 1,186,063
Kurdish Kurdî ku 26.86 21,662 686,291 52,804
Kirghiz Кыргызча ky 0.28 53,255 233,923 68,390
Latin Latina la 10.35 124,988 3,124,075 235,346
Luxembourgish Lëtzebuergesch lb 29.9 45,309 1,986,426 101,237
Limburgish Limburgs li 83.51 10,872 405,084 43,386
Lombard Lumbaart lmo 32.7 32,916 1,069,953 86,405
Lithuanian Lietuvių lt 21.05 175,749 5,171,086 400,049
Latvian Latviešu lv 91.72 65,557 2,550,700 269,712
Banyumasan Basa Banyumasan map-bms 8.74 12,997 207,565 26,810
Malagasy Malagasy mg 10.31 81,235 812,229 215,591
Minangkabau Bahaso Minangkabau min 0.782 221,733 1,367,587 315,995
Macedonian Македонски mk 139.75 84,982 4,261,024 388,223
Malayalam മലയാളം ml 282.16 41,623 2,345,101 285,632
Mongolian Монгол mn 44.08 15,237 477,474 46,964
Marathi मराठी mr 76.64 42,989 1,421,733 175,046
Hill Mari Кырык Мары (Kyryk Mary) mrj 1.22 10,093 97,557 14,373
Malay Bahasa Melayu ms 15.78 280,720 4,117,424 759,627
Burmese language မ္ရန္‌မာစာ my 3.12 32,071 291,158 57,172
Mazandarani مَزِروني mzn 6.41 12,220 136,027 25,657
Nahuatl Nāhuatl nah 26.08 11,238 425,563 25,204
Neapolitan Nnapulitano nap 18.07 14,284 697,367 26,009
Low Saxon Plattdüütsch nds 31.24 24,784 796,002 64,088
Nepali नेपाली ne 20.87 27,608 531,518 74,985
Newari नेवारी new 12.27 72,356 829,376 195,346
Dutch Nederlands nl 10.84 1,855,180 46,984,795 3,529,150
Norwegian (Nynorsk) Nynorsk nn 17.73 125,222 3,002,319 288,707
Norwegian (Bokmål) Norsk (Bokmål) no 36.14 431,754 15,681,294 1,127,772
Occitan Occitan oc 5.43 89,358 2,134,208 143,306
Oriya ଓଡ଼ିଆ or 65.83 10,328 234,979 48,334
Ossetian Иронау os 95.88 10,215 483,289 38,415
Punjabi ਪੰਜਾਬੀ pa 23.47 21,010 310,983 68,928
Polish Polski pl 21.87 1,153,707 44,849,486 2,402,558
Piedmontese Piemontèis pms 2.18 63,878 857,355 95,317
Western Panjabi شاہ مکھی پنجابی pnb 0.43 40,285 449,105 49,007
Portuguese Português pt 133.31 908,974 45,725,294 4,021,371
Quechua Runa Simi qu 34.6 19,454 659,079 51,414
Romanian Română ro 80.51 367,704 10,718,625 1,670,045
Russian Русский ru 132.22 1,288,399 88,604,761 4,700,793
Sanskrit संस्कृतम् sa 66.91 10,020 359,502 35,933
Sakha Саха тыла sah 50.95 10,681 344,345 34,981
Sicilian Sicilianu scn 20.15 25,354 750,030 56,626
Scots Scots sco 27.94 36,250 536,256 130,927
Serbo-Croatian Srpskohrvatski / Српскохрватски sh 407.8 430,414 20,348,510 4,532,638
Sinhalese සිංහල si 92.48 11,624 367,496 54,782
Simple English Simple English simple 172.48 117,348 12,701,585 386,024
Slovak Slovenčina sk 18.44 208,496 6,239,343 448,587
Slovenian Slovenščina sl 24.43 149,359 4,723,078 350,426
Albanian Shqip sq 35.44 52,227 1,717,454 141,454
Serbian Српски sr 67.9 331,347 11,928,989 1,195,802
Sundanese Basa Sunda su 20 18,703 486,971 43,779
Swedish Svenska sv 6.42 2,817,004 32,982,862 5,812,900
Swahili Kiswahili sw 26.85 31,851 1,010,076 77,597
Tamil தமிழ் ta 30.95 84,311 2,096,969 244,455
Telugu తెలుగు te 39.72 65,047 1,815,385 201,688
Tajik Тоҷикӣ tg 12.52 40,378 743,249 90,138
Thai ไทย th 271.63 100,251 6,647,694 594,250
Tagalog Tagalog tl 38.04 64,294 1,579,024 208,332
Turkish Türkçe tr 238.12 261,365 17,565,326 1,400,003
Tatar Татарча tt 23.4 68,427 2,132,679 158,733
Ukrainian Українська uk 37.33 617,897 17,766,576 1,829,334
Urdu اردو ur 142.87 101,755 4,914,354 483,087
Uzbek O‘zbek uz 61.19 128,106 2,623,818 612,111
Venetian Vèneto vec 77.79 10,700 596,286 32,852
Vietnamese Tiếng Việt vi 22.4 1,142,646 22,993,397 3,141,615
Volapük Volapük vo 15.24 120,267 3,307,371 249,140
Walloon Walon wa 22.65 14,000 326,325 36,190
Waray-Waray Winaray war 3.58 1,259,476 6,279,891 2,869,858
Yiddish ייִדיש yi 47.29 13,113 524,029 37,109
Yoruba Yorùbá yo 5.3 31,147 550,337 53,518
Chinese 中文 zh 162.53 863,104 40,276,844 4,569,321
Min Nan Bân-lâm-gú zh-min-nan 14.47 123,311 1,008,503 429,356
Cantonese 粵語 zh-yue 27.91 42,556 1,028,532 119,049


Trends[edit]

Trend of article depth.

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 915 102 207 22 73 117 11 133 198 132 6 163 36 46 31 37 238 81 15 41 58 17 18 68 90 250 225 90 21 68
1 July 2015 888 97 205 21 71 109 11 130 190 125 12 147 34 46 31 36 229 77 15 42 76 17 18 70 76 253 214 87 31 66
1 Jan 2015 887 89 193 20 69 105 9 123 176 115 11 131 32 44 31 37 210 97 15 39 97 18 19 70 65 257 214 87 31 66
1 July 2014 868 90 181 18 68 101 9 121 174 113 11 114 26 45 30 27 211 94 16 39 99 18 18 69 60 256 237 80 31 63
1 Jan 2014 824 90 172 18 66 98 10 117 172 109 11 108 28 45 27 38 214 90 15 39 100 18 18 67 56 253 248 82 31 57
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.