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 × 41.97 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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45
46
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54
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71
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130
Language Language (local) Wiki Depth Articles Edits Total







Afrikaans Afrikaans af 33.71 36,626 1,431,193 89,931
Alemannic Alemannisch als 24.79 19,674 660,201 45,344
Amharic አማርኛ am 41.35 12,963 342,311 42,245
Aragonese Aragonés an 81.43 30,718 1,610,337 99,684
Arabic العربية ar 217.68 380,363 19,376,116 2,323,844
Egyptian Arabic مصرى arz 310.33 14,394 732,232 114,792
Asturian Asturianu ast 10.36 26,496 851,787 46,405
Azerbaijani Azərbaycanca az 33.9 98,662 3,550,091 251,696
Bashkir Башҡорт ba 14.07 35,016 535,844 88,345
Bavarian Boarisch bar 40.82 14,630 474,439 42,656
Samogitian Žemaitėška bat-smg 7.2 14,060 343,266 24,041
Belarusian Беларуская be 18.02 99,989 2,183,911 240,989
Belarusian (Taraškievica) Беларуская (тарашкевіца) be-x-old 31.91 57,013 1,880,273 147,087
Bulgarian Български bg 23.45 205,757 7,207,020 456,519
Bengali বাংলা bn 476.97 37,276 1,968,897 407,754
Bishnupriya Manipuri বিষ্ণুপ্রিয়া মণিপুরী bpy 23.52 25,060 804,543 57,570
Breton Brezhoneg br 16.72 54,666 1,737,241 111,228
Bosnian Bosanski bs 157.16 62,520 2,836,725 329,735
Buginese Basa Ugi bug 0.94 14,103 197,929 18,249
Catalan Català ca 31.07 472,178 15,995,093 1,190,112
Chechen Нохчийн ce 0.17 100,453 833,312 115,744
Cebuano Sinugboanong Binisaya ceb 3.55 1,208,898 5,783,350 2,791,118
Sorani کوردی ckb 132.72 15,876 495,514 96,652
Czech Čeština cs 41.03 330,873 13,214,910 876,793
Chuvash Чăваш cv 3.84 33,550 571,659 53,687
Welsh Cymraeg cy 59.84 65,983 5,285,396 152,762
Danish Dansk da 68.63 208,873 8,604,172 703,767
German Deutsch de 97.35 1,848,317 150,702,382 5,253,078
Greek Ελληνικά el 68.27 109,286 5,513,176 330,302
English English en 891.39 4,954,210 786,935,135 37,048,017
Esperanto Esperanto eo 17.03 217,759 5,805,796 474,753
Spanish Español es 189.97 1,196,722 89,995,622 5,137,764
Estonian Eesti et 30.62 137,480 4,375,641 353,778
Basque Euskara eu 26.3 209,434 5,092,202 568,208
Persian فارسی fa 211.78 465,156 20,567,588 3,088,199
Finnish Suomi fi 46.05 377,781 15,997,384 1,027,540
Faroese Føroyskt fo 36.46 11,307 329,986 32,847
French Français fr 206.07 1,656,326 120,368,988 7,650,854
West Frisian Frysk fy 20.64 32,496 789,694 79,275
Irish Gaeilge ga 5.62 35,637 800,338 58,463
Scottish Gaelic Gàidhlig gd 22.54 13,271 517,338 27,903
Galician Galego gl 21.3 124,604 3,737,815 282,783
Gujarati ગુજરાતી gu 11.17 25,694 401,751 58,451
Hebrew עברית he 252.52 176,810 18,312,036 742,610
Hindi हिन्दी hi 100.82 101,166 2,990,833 527,937
Croatian Hrvatski hr 34.09 156,363 4,744,206 431,814
Haitian Krèyol ayisyen ht 0.36 52,464 710,273 61,752
Hungarian Magyar hu 75.44 329,795 17,073,185 1,035,110
Armenian Հայերեն hy 26.67 184,184 3,468,907 569,610
Interlingua Interlingua ia 12.23 14,534 556,183 25,393
Indonesian Bahasa Indonesia id 80.91 364,796 10,925,177 1,633,630
Ido Ido io 6.02 26,136 933,952 39,284
Icelandic Íslenska is 43.66 39,643 1,565,045 108,671
Italian Italiano it 110.07 1,219,829 80,048,228 4,124,921
Japanese 日本語 ja 71.11 980,177 57,638,054 2,802,812
Javanese Basa Jawa jv 18.08 48,503 955,067 122,305
Georgian ქართული ka 35.01 98,199 3,062,102 271,078
Kazakh Қазақша kk 8.91 212,219 2,430,905 499,229
Kannada ಕನ್ನಡ kn 69.91 16,363 539,588 63,180
Korean 한국어 ko 86.97 325,755 16,530,300 1,114,638
Kurdish Kurdî ku 26.43 21,277 675,491 51,476
Kirghiz Кыргызча ky 0.65 36,411 211,036 50,781
Latin Latina la 10.22 120,593 3,033,512 225,783
Luxembourgish Lëtzebuergesch lb 29.92 44,219 1,925,758 99,079
Lombard Lumbaart lmo 32.73 32,014 1,059,498 83,399
Lithuanian Lietuvių lt 19.98 173,492 4,983,469 390,606
Latvian Latviešu lv 92.99 62,395 2,471,074 256,090
Banyumasan Basa Banyumasan map-bms 8.24 12,961 205,871 26,248
Malagasy Malagasy mg 10.26 81,094 810,266 214,807
Minangkabau Bahaso Minangkabau min 0.619 221,653 1,086,102 315,698
Macedonian Македонски mk 139.96 83,161 4,196,727 378,704
Malayalam മലയാളം ml 284.59 39,879 2,263,396 273,914
Mongolian Монгол mn 41.24 14,712 461,624 43,823
Marathi मराठी mr 72.84 42,271 1,396,290 167,063
Hill Mari Кырык Мары (Kyryk Mary) mrj 1.21 10,089 97,337 14,354
Malay Bahasa Melayu ms 15.8 275,203 4,030,461 745,657
Burmese language မ္ရန္‌မာစာ my 2.64 31,250 272,519 53,839
Mazandarani مَزِروني mzn 6.23 12,105 134,266 25,196
Nahuatl Nāhuatl nah 21 10,781 413,200 22,243
Neapolitan Nnapulitano nap 24.19 14,346 692,267 28,716
Low Saxon Plattdüütsch nds 31.22 23,898 784,996 61,176
Nepali नेपाली ne 20.65 26,513 494,829 72,683
Newari नेवारी new 12.25 72,367 828,778 195,319
Dutch Nederlands nl 10.85 1,833,410 45,759,267 3,504,666
Norwegian (Nynorsk) Nynorsk nn 18.13 121,736 2,949,706 282,025
Norwegian (Bokmål) Norsk (Bokmål) no 34.01 417,521 14,160,807 1,094,474
Occitan Occitan oc 5.37 88,511 2,116,244 141,535
Ossetian Иронау os 94.64 10,192 482,390 38,032
Punjabi ਪੰਜਾਬੀ pa 22.4 18,225 262,679 59,163
Polish Polski pl 21.53 1,130,620 43,452,642 2,350,972
Piedmontese Piemontèis pms 2.12 63,835 854,805 94,801
Western Panjabi شاہ مکھی پنجابی pnb 0.48 33,955 423,427 41,270
Portuguese Português pt 131.27 885,264 44,206,732 3,896,612
Quechua Runa Simi qu 34.85 19,352 657,506 51,245
Romanian Română ro 75.62 348,991 10,253,382 1,515,899
Russian Русский ru 127.77 1,248,925 85,257,220 4,487,836
Sanskrit संस्कृतम् sa 52.78 10,075 316,498 34,100
Sakha Саха тыла sah 50.86 10,451 341,060 33,974
Sicilian Sicilianu scn 20.14 25,279 748,140 56,437
Scots Scots sco 30.19 32,973 515,497 120,604
Serbo-Croatian Srpskohrvatski / Српскохрватски sh 413.5 426,238 20,252,263 4,521,746
Sinhalese සිංහල si 90.69 11,124 351,086 51,826
Simple English Simple English simple 171.52 114,616 12,577,422 373,175
Slovak Slovenčina sk 18.12 206,087 6,130,412 441,513
Slovenian Slovenščina sl 24.16 147,436 4,657,214 344,531
Albanian Shqip sq 35.28 50,870 1,689,735 136,870
Serbian Српски sr 66.72 323,703 11,517,408 1,164,409
Sundanese Basa Sunda su 18.46 18,360 478,033 41,639
Swedish Svenska sv 11.7 1,975,628 30,307,674 4,612,149
Swahili Kiswahili sw 30.85 29,521 996,528 74,286
Tamil தமிழ் ta 40.92 68,739 1,984,584 212,678
Telugu తెలుగు te 39.23 60,668 1,615,288 191,519
Tajik Тоҷикӣ tg 13.63 37,988 726,459 86,332
Thai ไทย th 270.31 96,807 6,438,929 570,620
Tagalog Tagalog tl 38.58 63,348 1,559,398 206,551
Turkish Türkçe tr 241.95 251,295 16,926,054 1,358,818
Tatar Татарча tt 22.84 67,232 2,111,978 153,983
Ukrainian Українська uk 36.88 587,459 16,854,793 1,730,601
Urdu اردو ur 158.1 76,377 4,398,088 345,573
Uzbek O‘zbek uz 60.93 127,927 2,388,137 648,140
Venetian Vèneto vec 77.34 10,619 589,930 32,557
Vietnamese Tiếng Việt vi 20.21 1,138,860 21,529,211 3,073,359
Volapük Volapük vo 15.24 120,224 3,306,657 249,019
Walloon Walon wa 22.54 13,880 323,482 35,801
Waray-Waray Winaray war 3.57 1,259,253 6,271,418 2,869,140
Yiddish ייִדיש yi 48.17 12,835 520,058 36,404
Yoruba Yorùbá yo 5.3 31,100 549,145 53,432
Chinese 中文 zh 156.12 837,925 38,273,255 4,379,462
Min Nan Bân-lâm-gú zh-min-nan 31.85 35,637 594,589 129,505
Cantonese 粵語 zh-yue 31.16 38,288 992,497 109,165


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.