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 × 43.29 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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35
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38
39
40
41
42
43
44
45
46
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49
50
51
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53
54
55
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58
59
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62
63
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71
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132
Language Language (local) Wiki Depth Articles Edits Total Pages







Afrikaans Afrikaans af 32.48 38,638 1,474,162 94,346
Alemannic Alemannisch als 23.81 20,727 685,878 47,279
Amharic አማርኛ am 41.32 13,023 343,942 42,422
Aragonese Aragonés an 80.46 31,173 1,620,249 100,980
Arabic العربية ar 225.15 408,212 20,962,573 2,540,591
Egyptian Arabic مصرى arz 324.82 14,725 756,093 120,805
Asturian Asturianu ast 4.24 45,713 1,029,505 70,321
Azerbaijani Azərbaycanca az 34.6 102,904 3,703,890 264,682
Bashkir Башҡорт ba 15.43 35,451 565,568 91,438
Bavarian Boarisch bar 90.73 17,271 581,508 77,218
Samogitian Žemaitėška bat-smg 7.19 14,678 348,884 25,266
Belarusian Беларуская be 18.89 112,119 2,339,340 281,029
Belarusian (Taraškievica) Беларуская (тарашкевіца) be-tarask 32.01 58,114 1,907,077 150,464
Bulgarian Български bg 23.72 213,007 7,520,892 473,217
Bengali বাংলা bn 449.66 40,963 2,095,534 438,153
Bishnupriya Manipuri বিষ্ণুপ্রিয়া মণিপুরী bpy 23.56 25,061 805,088 57,594
Breton Brezhoneg br 15.78 57,125 1,765,586 115,047
Bosnian Bosanski bs 135.24 68,158 2,907,684 338,662
Buginese Basa Ugi bug 0.95 14,104 198,122 18,277
Catalan Català ca 30.86 495,623 16,785,385 1,245,742
Chechen Нохчийн ce 0.14 118,828 995,378 134,970
Cebuano Sinugboanong Binisaya ceb 1.92 1,979,169 7,608,123 3,959,894
Sorani کوردی ckb 126.47 16,643 506,809 99,625
Czech Čeština cs 40.71 344,950 13,704,453 913,092
Chuvash Чăваш cv 4 34,046 579,358 55,043
Welsh Cymraeg cy 54.38 69,321 5,304,081 157,379
Danish Dansk da 67.89 214,232 8,785,556 719,305
German Deutsch de 101.87 1,907,101 156,375,671 5,525,354
Greek Ελληνικά el 70.94 114,336 5,792,256 351,608
English English en 914.8 5,076,423 813,076,820 38,477,144
Esperanto Esperanto eo 16.92 225,733 5,958,723 492,777
Spanish Español es 197.82 1,233,462 94,353,840 5,373,655
Estonian Eesti et 29.87 143,535 4,489,956 368,170
Basque Euskara eu 20.94 241,556 5,410,738 613,884
Persian فارسی fa 208.72 483,130 21,334,305 3,176,296
Finnish Suomi fi 45.61 388,364 16,352,009 1,054,421
Faroese Føroyskt fo 39.31 11,759 347,169 35,254
French Français fr 206.5 1,723,264 125,502,385 7,959,718
West Frisian Frysk fy 21.07 33,370 799,822 82,584
Irish Gaeilge ga 5.49 36,832 814,318 60,324
Scottish Gaelic Gàidhlig gd 22.01 13,645 525,235 28,579
Galician Galego gl 22.03 127,859 3,904,890 291,960
Gujarati ગુજરાતી gu 12.8 26,110 418,385 62,092
Hebrew עברית he 250.14 185,289 19,028,134 777,764
Hindi हिन्दी hi 113.55 101,358 3,130,159 556,944
Croatian Hrvatski hr 32.74 161,665 4,829,417 441,284
Haitian Krèyol ayisyen ht 0.37 52,473 711,495 61,897
Hungarian Magyar hu 58.18 380,890 17,847,421 1,103,219
Armenian Հայերեն hy 30.1 195,037 3,975,990 616,354
Interlingua Interlingua ia 6.87 19,030 576,623 30,498
Indonesian Bahasa Indonesia id 92.4 374,365 11,952,337 1,752,244
Ido Ido io 6.34 26,489 941,594 40,284
Icelandic Íslenska is 43.19 40,308 1,579,260 110,326
Italian Italiano it 117.05 1,252,323 84,054,352 4,326,036
Japanese 日本語 ja 73.02 1,001,718 59,548,038 2,886,260
Javanese Basa Jawa jv 19.22 48,671 972,340 125,244
Georgian ქართული ka 34.54 102,968 3,144,705 285,208
Kazakh Қазақша kk 8.79 214,149 2,493,334 497,938
Kannada ಕನ್ನಡ kn 55.12 19,599 594,592 69,262
Korean 한국어 ko 90.49 341,915 17,585,105 1,186,934
Kurdish Kurdî ku 26.86 21,663 686,317 52,805
Kirghiz Кыргызча ky 0.28 53,258 233,978 68,404
Latin Latina la 10.35 124,985 3,124,958 235,313
Luxembourgish Lëtzebuergesch lb 29.89 45,312 1,986,515 101,235
Limburgish Limburgs li 83.21 10,895 405,156 43,435
Lombard Lumbaart lmo 32.72 32,920 1,070,009 86,445
Lithuanian Lietuvių lt 21.06 175,757 5,171,535 400,104
Latvian Latviešu lv 91.72 65,577 2,551,554 269,800
Banyumasan Basa Banyumasan map-bms 8.74 12,998 207,570 26,811
Malagasy Malagasy mg 10.31 81,235 812,231 215,592
Minangkabau Bahaso Minangkabau min 0.782 221,735 1,367,603 315,999
Macedonian Македонски mk 139.74 84,987 4,261,245 388,236
Malayalam മലയാളം ml 282.28 41,651 2,346,292 285,945
Mongolian Монгол mn 44.11 15,240 477,549 46,991
Marathi मराठी mr 76.62 43,004 1,421,941 175,092
Hill Mari Кырык Мары (Kyryk Mary) mrj 1.22 10,093 97,560 14,373
Malay Bahasa Melayu ms 15.78 280,734 4,117,800 759,658
Burmese language မ္ရန္‌မာစာ my 3.11 32,089 291,404 57,169
Mazandarani مَزِروني mzn 6.41 12,223 136,041 25,659
Nahuatl Nāhuatl nah 26.07 11,240 425,569 25,206
Neapolitan Nnapulitano nap 18.07 14,285 697,381 26,012
Low Saxon Plattdüütsch nds 31.2 24,800 796,133 64,106
Nepali नेपाली ne 20.85 27,632 531,844 75,023
Newari नेवारी new 12.27 72,356 829,376 195,346
Dutch Nederlands nl 10.84 1,855,373 46,994,838 3,529,411
Norwegian (Nynorsk) Nynorsk nn 17.72 125,241 3,002,545 288,745
Norwegian (Bokmål) Norsk (Bokmål) no 36.14 431,852 15,686,074 1,128,088
Occitan Occitan oc 5.43 89,365 2,134,337 143,329
Oriya ଓଡ଼ିଆ or 65.75 10,339 235,113 48,359
Ossetian Иронау os 95.89 10,215 483,292 38,417
Punjabi ਪੰਜਾਬੀ pa 23.65 21,097 312,412 69,478
Polish Polski pl 21.88 1,153,867 44,859,203 2,402,998
Piedmontese Piemontèis pms 2.18 63,878 857,370 95,331
Western Panjabi شاہ مکھی پنجابی pnb 0.43 40,298 449,187 49,028
Portuguese Português pt 133.33 909,176 45,736,832 4,022,604
Quechua Runa Simi qu 34.6 19,454 659,093 51,417
Romanian Română ro 80.27 367,740 10,724,217 1,666,544
Russian Русский ru 132.26 1,288,699 88,633,275 4,702,467
Sanskrit संस्कृतम् sa 67.07 10,020 359,684 35,970
Sakha Саха тыла sah 50.93 10,684 344,369 34,986
Sicilian Sicilianu scn 20.15 25,354 750,035 56,625
Scots Scots sco 27.95 36,251 536,379 130,945
Serbo-Croatian Srpskohrvatski / Српскохрватски sh 407.8 430,453 20,352,265 4,532,717
Sinhalese සිංහල si 92.73 11,617 367,673 54,810
Simple English Simple English simple 172.49 117,373 12,702,829 386,136
Slovak Slovenčina sk 18.45 208,505 6,240,107 448,632
Slovenian Slovenščina sl 24.43 149,378 4,723,793 350,502
Albanian Shqip sq 35.43 52,252 1,717,644 141,526
Serbian Српски sr 67.9 331,413 11,931,305 1,196,088
Sundanese Basa Sunda su 20 18,707 487,040 43,790
Swedish Svenska sv 6.39 2,823,110 32,996,406 5,820,996
Swahili Kiswahili sw 26.83 31,866 1,010,118 77,622
Tamil தமிழ் ta 30.97 84,327 2,097,647 244,558
Telugu తెలుగు te 39.73 65,068 1,816,478 201,758
Tajik Тоҷикӣ tg 12.54 40,423 743,507 90,311
Thai ไทย th 271.42 100,318 6,649,843 594,461
Tagalog Tagalog tl 38.04 64,300 1,579,137 208,353
Turkish Türkçe tr 238.11 261,454 17,572,908 1,400,346
Tatar Татарча tt 23.41 68,433 2,132,831 158,768
Ukrainian Українська uk 37.32 618,207 17,773,602 1,830,042
Urdu اردو ur 144.6 101,768 4,921,508 486,542
Uzbek O‘zbek uz 61.21 128,109 2,624,247 612,203
Venetian Vèneto vec 77.77 10,702 596,298 32,855
Vietnamese Tiếng Việt vi 22.4 1,142,673 22,995,731 3,141,753
Volapük Volapük vo 15.24 120,268 3,307,374 249,141
Walloon Walon wa 22.65 14,001 326,327 36,191
Waray-Waray Winaray war 3.58 1,259,478 6,279,906 2,869,861
Yiddish ייִדיש yi 47.29 13,114 524,042 37,113
Yoruba Yorùbá yo 5.31 31,151 550,353 53,529
Chinese 中文 zh 162.47 863,527 40,291,416 4,570,688
Min Nan Bân-lâm-gú zh-min-nan 14.04 125,765 1,013,443 434,256
Cantonese 粵語 zh-yue 27.88 42,599 1,028,976 119,133


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 6 162 36 46 31 37 238 80 15 41 58 17 18 68 92 250 225 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.