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 889 = 21.25 × 41.85 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 = 215.83 × 6.52.

The smallest depth has Minangkabau Wikipedia which has the depth 0.0066 = 4.35 × 0.0015.

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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40
41
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43
44
45
46
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49
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52
53
54
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58
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63
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71
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125
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129
130
Language Language (local) Wiki Depth Articles Edits Total







Afrikaans Afrikaans af 34.18 36,192 1,424,317 89,117
Alemannic Alemannisch als 24.85 19,537 654,889 45,091
Amharic አማርኛ am 41.27 12,959 341,891 42,212
Aragonese Aragonés an 81.63 30,657 1,609,232 99,549
Arabic العربية ar 213.3 379,562 19,133,956 2,302,603
Egyptian Arabic مصرى arz 252.86 14,286 699,388 100,324
Asturian Asturianu ast 10.16 26,462 839,271 46,260
Azerbaijani Azərbaycanca az 33.9 98,096 3,529,387 250,205
Bashkir Башҡорт ba 13.62 34,937 529,170 87,312
Bavarian Boarisch bar 41.34 14,478 471,993 42,370
Samogitian Žemaitėška bat-smg 7.2 13,966 342,150 23,859
Belarusian Беларуская be 17.07 99,295 2,155,970 234,616
Belarusian (Taraškievica) Беларуская (тарашкевіца) be-x-old 31.85 56,879 1,875,073 146,648
Bulgarian Български bg 23.5 204,666 7,178,993 454,236
Bengali বাংলা bn 480.61 36,821 1,954,328 403,700
Bishnupriya Manipuri বিষ্ণুপ্রিয়া মণিপুরী bpy 23.5 25,063 804,365 57,565
Breton Brezhoneg br 16.79 54,395 1,733,218 110,734
Bosnian Bosanski bs 158.3 62,169 2,828,206 328,920
Buginese Basa Ugi bug 0.94 14,105 197,629 18,251
Catalan Català ca 31.08 469,261 15,903,868 1,182,646
Chechen Нохчийн ce 0.16 100,265 830,381 115,381
Cebuano Sinugboanong Binisaya ceb 3.53 1,211,360 5,777,230 2,793,563
Sorani کوردی ckb 135.69 15,622 492,308 95,964
Czech Čeština cs 41.41 327,713 13,144,215 870,380
Chuvash Чăваш cv 3.95 32,982 567,423 53,025
Welsh Cymraeg cy 63.93 64,078 5,279,584 150,615
Danish Dansk da 68.94 207,693 8,570,059 700,837
German Deutsch de 97.33 1,840,299 149,880,752 5,232,544
Greek Ελληνικά el 68.06 108,676 5,483,990 327,911
English English en 889.24 4,933,090 782,872,649 36,847,537
Esperanto Esperanto eo 17.07 216,973 5,789,303 473,324
Spanish Español es 190.03 1,190,513 89,434,157 5,115,447
Estonian Eesti et 30.77 136,658 4,360,396 352,061
Basque Euskara eu 26.37 208,853 5,075,318 567,481
Persian فارسی fa 212.07 462,125 20,391,291 3,075,862
Finnish Suomi fi 45.99 376,421 15,938,909 1,023,227
Faroese Føroyskt fo 35.97 11,282 329,208 32,564
French Français fr 205.81 1,648,074 119,617,672 7,612,767
West Frisian Frysk fy 20.56 32,347 787,909 78,696
Irish Gaeilge ga 5.67 35,348 795,900 58,091
Scottish Gaelic Gàidhlig gd 22.94 13,128 514,811 27,719
Galician Galego gl 21.14 124,083 3,711,884 281,064
Gujarati ગુજરાતી gu 10.91 25,620 399,593 57,815
Hebrew עברית he 253.27 175,578 18,211,364 738,120
Hindi हिन्दी hi 99.45 100,918 2,973,942 522,942
Croatian Hrvatski hr 34.27 155,639 4,730,925 430,455
Haitian Krèyol ayisyen ht 0.36 52,461 710,080 61,736
Hungarian Magyar hu 75.71 327,673 16,973,813 1,030,045
Armenian Հայերեն hy 27.56 179,224 3,412,071 560,565
Interlingua Interlingua ia 12.24 14,474 555,590 25,272
Indonesian Bahasa Indonesia id 78.47 363,102 10,702,032 1,611,093
Ido Ido io 5.99 26,091 933,038 39,179
Icelandic Íslenska is 43.85 39,520 1,563,712 108,439
Italian Italiano it 109.44 1,215,110 79,520,566 4,102,313
Japanese 日本語 ja 70.9 976,672 57,359,722 2,790,588
Javanese Basa Jawa jv 18.06 48,485 954,222 122,236
Georgian ქართული ka 35.44 97,506 3,051,108 270,266
Kazakh Қазақша kk 8.89 212,107 2,424,875 499,025
Kannada ಕನ್ನಡ kn 68.92 16,236 534,800 62,206
Korean 한국어 ko 86.78 322,999 16,369,476 1,104,631
Kurdish Kurdî ku 26.55 21,176 673,447 51,289
Kirghiz Кыргызча ky 0.73 34,492 208,031 48,728
Latin Latina la 10.23 119,676 3,015,658 223,975
Luxembourgish Lëtzebuergesch lb 29.97 44,073 1,921,306 98,776
Lombard Lumbaart lmo 32.55 31,933 1,054,838 83,053
Lithuanian Lietuvių lt 19.93 173,042 4,973,619 389,138
Latvian Latviešu lv 92.75 62,002 2,441,838 254,943
Banyumasan Basa Banyumasan map-bms 8.23 12,960 205,500 26,244
Malagasy Malagasy mg 10.75 79,366 807,156 213,031
Minangkabau Bahaso Minangkabau min 0.007 221,650 1,000,541 230,258
Macedonian Македонски mk 140.28 82,820 4,187,874 377,214
Malayalam മലയാളം ml 284.92 39,567 2,247,695 271,824
Mongolian Монгол mn 41.18 14,657 459,660 43,635
Marathi मराठी mr 72.56 42,104 1,390,469 166,046
Hill Mari Кырык Мары (Kyryk Mary) mrj 1.2 10,083 96,280 14,348
Malay Bahasa Melayu ms 15.74 274,785 4,016,745 743,935
Burmese language မ္ရန္‌မာစာ my 2.42 31,181 251,649 53,549
Mazandarani مَزِروني mzn 6.14 12,092 133,555 25,075
Nahuatl Nāhuatl nah 19.73 10,764 410,010 21,786
Neapolitan Nnapulitano nap 24.14 14,344 691,981 28,694
Low Saxon Plattdüütsch nds 31.44 23,657 782,952 60,545
Nepali नेपाली ne 19.95 26,627 487,716 72,476
Newari नेवारी new 12.25 72,367 828,670 195,309
Dutch Nederlands nl 10.82 1,830,810 45,610,328 3,498,534
Norwegian (Nynorsk) Nynorsk nn 18.16 121,411 2,945,783 281,278
Norwegian (Bokmål) Norsk (Bokmål) no 34.04 415,878 14,105,802 1,090,582
Occitan Occitan oc 5.54 88,399 2,112,358 142,447
Ossetian Иронау os 94.3 10,190 482,128 37,954
Punjabi ਪੰਜਾਬੀ pa 22.75 17,906 259,584 58,420
Polish Polski pl 21.53 1,126,276 43,273,803 2,341,886
Piedmontese Piemontèis pms 2.1 63,812 853,488 94,619
Western Panjabi شاہ مکھی پنجابی pnb 0.47 33,930 422,705 41,192
Portuguese Português pt 130.66 882,410 43,985,351 3,876,896
Quechua Runa Simi qu 34.87 19,330 657,177 51,189
Romanian Română ro 74.74 334,588 10,024,011 1,425,380
Russian Русский ru 127.06 1,242,072 84,759,620 4,450,118
Sanskrit संस्कृतम् sa 50.25 10,054 305,471 33,741
Sakha Саха тыла sah 50.75 10,429 340,631 33,851
Sicilian Sicilianu scn 20.17 25,236 747,121 56,362
Scots Scots sco 30.27 32,381 506,776 118,538
Serbo-Croatian Srpskohrvatski / Српскохрватски sh 414.01 425,881 20,245,788 4,520,645
Sinhalese සිංහල si 84.49 11,417 348,769 51,899
Simple English Simple English simple 171.56 114,119 12,556,868 371,073
Slovak Slovenčina sk 18.1 205,724 6,114,070 440,726
Slovenian Slovenščina sl 24.14 147,136 4,647,976 343,739
Albanian Shqip sq 35.11 50,775 1,686,040 136,327
Serbian Српски sr 66.46 322,716 11,452,717 1,160,057
Sundanese Basa Sunda su 18.18 18,284 475,974 41,229
Swedish Svenska sv 11.67 1,972,746 30,189,064 4,604,985
Swahili Kiswahili sw 31.47 29,184 995,033 73,758
Tamil தமிழ் ta 41.04 68,018 1,968,362 210,530
Telugu తెలుగు te 37.49 60,469 1,560,007 189,515
Tajik Тоҷикӣ tg 12.64 32,749 664,965 70,717
Thai ไทย th 268.77 96,476 6,406,473 567,014
Tagalog Tagalog tl 38.53 63,193 1,554,169 205,998
Turkish Türkçe tr 228.98 249,802 16,766,492 1,303,946
Tatar Татарча tt 22.71 67,093 2,108,205 153,304
Ukrainian Українська uk 36.49 583,791 16,740,257 1,711,362
Urdu اردو ur 159.02 74,102 4,353,763 332,236
Uzbek O‘zbek uz 59.93 127,891 2,348,801 647,897
Venetian Vèneto vec 77.35 10,611 589,481 32,536
Vietnamese Tiếng Việt vi 20.07 1,137,834 21,418,137 3,066,815
Volapük Volapük vo 15.24 120,220 3,305,572 249,011
Walloon Walon wa 22.61 13,834 322,910 35,708
Waray-Waray Winaray war 3.57 1,259,210 6,262,832 2,868,852
Yiddish ייִדיש yi 48.12 12,812 518,661 36,336
Yoruba Yorùbá yo 5.29 31,084 547,959 53,401
Chinese 中文 zh 153.21 834,095 37,937,148 4,316,661
Min Nan Bân-lâm-gú zh-min-nan 47.57 24,556 555,052 94,400
Cantonese 粵語 zh-yue 31.79 37,497 984,162 107,301


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 889 97 206 22 71 109 11 131 190 127 12 153 34 46 31 36 229 75 15 41 76 17 18 69 78 253 213 87 20 66
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.