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 895 = 21.54 × 41.53 and is the deepest one for Wikipedias with number of articles greater than 10000.

The largest depth for the unblocked Wikipedias has Aromanian Wikipedia which has the depth 649 = 49.7 × 13.05.

The smallest depth has Minangkabau Wikipedia which has the depth 0.002 = 2.12 × 0.0009.

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.: Table sorted by Depth on 22 February 2015.

No. Language Language (local) Wiki Depth Articles Edits Total
1 English English en 894.6 4,732,530 758,909,888 35,230,569
2 Macedonian Македонски mk 476.6 81,098 3,399,156 1,078,246
3 Bengali বাংলা bn 470.08 34,901 1,845,121 376,899
4 Serbo-Croatian Srpskohrvatski / Српскохрватски sh 354.66 278,218 9,134,151 3,540,060
5 Malayalam മലയാളം ml 289.58 38,061 2,199,053 261,340
6 Egyptian Arabic مصرى arz 275.32 13,424 670,023 99,076
7 Hebrew עברית he 258.4 166,537 17,519,488 702,671
8 Thai ไทย th 253.61 92,994 6,144,147 526,518
9 Persian فارسی fa 208.83 446,042 19,650,831 2,938,683
10 Turkish Türkçe tr 206.25 242,355 16,104,334 1,187,469
11 Arabic العربية ar 202.41 351,916 17,740,787 2,056,612
12 French Français fr 196.46 1,595,955 114,695,670 7,201,117
13 Spanish Español es 177.04 1,160,004 85,818,836 4,816,606
14 Bosnian Bosanski bs 171.97 58,528 2,768,202 319,128
15 Sorani کوردی ckb 139.98 15,229 484,918 94,966
16 Urdu اردو ur 133.17 67,586 4,136,933 264,972
17 Chinese 中文 zh 133.83 813,392 35,886,894 3,925,477
18 Simple English Simple English simple 126.36 120,862 12,412,957 348,514
19 Portuguese Português pt 124.3 867,067 42,518,237 3,730,434
20 Russian Русский ru 116.42 1,194,936 81,304,027 4,084,891
21 Italian Italiano it 107.23 1,176,549 76,413,043 3,944,648
22 Romanian Română ro 94.64 268,068 9,471,745 1,193,975
23 Latvian Latviešu lv 93.56 59,073 2,368,104 241,562
24 Hungarian Magyar hu 91.65 286,181 16,354,209 944,625
25 Ossetian Иронау os 92.63 10,149 479,751 37,434
26 German Deutsch de 88.31 1,820,199 144,929,563 4,995,943
27 Korean 한국어 ko 85.67 305,753 15,543,722 1,036,562
28 Aragonese Aragonés an 81.67 30,503 1,600,686 99,086
29 Venetian Vèneto vec 77.5 10,519 583,541 32,309
30 Bavarian Boarisch bar 74.5 10,676 449,279 37,188
31 Danish Dansk da 69.63 196,363 8,334,445 656,087
32 Japanese 日本語 ja 69.42 949,571 55,636,042 2,688,795
33 Indonesian Bahasa Indonesia id 68.98 355,859 9,806,858 1,519,091
34 Serbian Српски sr 65.38 315,779 11,098,802 1,130,797
35 Marathi मराठी mr 66.94 41,423 1,345,022 157,330
36 Welsh Cymraeg cy 63.39 63,314 5,253,013 147,901
37 Sinhalese සිංහල si 62.55 12,382 338,709 50,011
38 Hindi हिन्दी hi 61.01 117,416 2,814,757 506,426
39 Uzbek O‘zbek uz 59.07 127,867 2,328,539 645,178
40 Yiddish ייִדיש yi 57.21 11,855 511,126 35,481
41 Kannada ಕನ್ನಡ kn 45.56 17,886 492,959 60,008
42 Finnish Suomi fi 44.2 367,181 15,571,609 979,426
43 Sakha Саха тыла sah 43.55 10,762 337,567 32,951
44 Icelandic Íslenska is 43.44 38,752 1,539,950 105,649
45 Greek Ελληνικά el 41.15 118,806 5,229,345 301,939
46 Georgian ქართული ka 38.92 90,022 2,961,963 254,718
47 Czech Čeština cs 39.06 316,281 12,714,349 817,520
48 Tamil தமிழ் ta 37.48 67,178 1,894,758 201,188
49 Tagalog Tagalog tl 36.89 63,254 1,533,366 203,064
50 Ukrainian Українська uk 36.95 555,647 15,926,278 1,639,360
51 Mongolian Монгол mn 35.07 14,184 440,225 39,271
52 Quechua Runa Simi qu 34.89 19,250 655,474 50,953
53 Afrikaans Afrikaans af 34.14 34,674 1,385,513 84,799
54 Sanskrit संस्कृतम् sa 34.44 10,677 292,410 31,116
55 Croatian Hrvatski hr 33.69 152,134 4,631,269 417,140
56 Armenian Հայերեն hy 33.43 147,501 2,872,303 505,111
57 Swahili Kiswahili sw 32.3 28,265 984,501 71,583
58 Lombard Lumbaart lmo 32.31 31,607 1,050,903 81,699
59 Belarusian (Taraškievica) Беларуская (тарашкевіца) be-x-old 32.29 55,538 1,840,220 143,742
60 Cantonese 粵語 zh-yue 31.76 35,199 949,014 99,402
61 Min Nan Bân-lâm-gú zh-min-nan 31.64 12,726 468,477 31,197
62 Norwegian (Bokmål) Norsk (Bokmål) no 31.55 408,143 13,687,571 1,040,105
63 Catalan Català ca 30.77 454,333 15,352,591 1,141,568
64 Azerbaijani Azərbaycanca az 30.6 100,055 3,387,709 250,691
65 Estonian Eesti et 30.53 131,278 4,244,199 335,079
66 Low Saxon Plattdüütsch nds 30.33 22,718 768,844 56,691
67 Luxembourgish Lëtzebuergesch lb 29.73 43,140 1,889,125 96,231
68 Albanian Shqip sq 26.92 52,245 1,639,672 127,965
69 Kurdish Kurdî ku 25.86 20,974 665,811 50,282
70 Telugu తెలుగు te 26.63 61,372 1,415,023 171,702
71 Alemannic Alemannisch als 25.26 18,479 629,940 42,641
72 Basque Euskara eu 25.24 206,378 4,879,940 556,550
73 Bishnupriya Manipuri বিষ্ণুপ্রিয়া মণিপুরী bpy 23.28 25,130 803,988 57,575
74 Neapolitan Nnapulitano nap 23.17 14,354 690,053 28,361
75 Faroese Føroyskt fo 23.3 11,035 315,522 26,461
76 Walloon Walon wa 22.2 13,748 320,277 35,231
77 Tatar Татарча tt 22.13 66,343 2,089,501 149,944
78 Bulgarian Български bg 22.01 189,390 6,913,974 404,205
79 Slovenian Slovenščina sl 21.61 144,784 4,545,534 324,655
80 Belarusian Беларуская be 21.25 81,034 2,020,640 197,952
81 Vietnamese Tiếng Việt vi 20.22 1,113,374 20,722,884 3,026,494
82 Sicilian Sicilianu scn 19.98 25,069 742,812 55,772
83 Polish Polski pl 19.95 1,096,854 42,008,480 2,223,962
84 Galician Galego gl 20.04 120,376 3,564,532 268,180
85 Amharic አማርኛ am 19.93 16,260 333,723 42,013
86 West Frisian Frysk fy 19.73 31,484 770,207 75,181
87 Lithuanian Lietuvių lt 19.36 170,618 4,899,280 379,603
88 Punjabi ਪੰਜਾਬੀ pa 19.05 16,925 230,891 51,967
89 Nahuatl Nāhuatl nah 18.42 10,314 401,177 20,264
90 Asturian Asturianu ast 18.01 20,143 792,368 39,143
91 Norwegian (Nynorsk) Nynorsk nn 17.82 119,662 2,907,751 275,000
92 Scots Scots sco 17.77 30,253 463,465 84,798
93 Slovak Slovenčina sk 17.62 202,862 5,993,611 431,299
94 Esperanto Esperanto eo 17.32 211,065 5,699,064 460,871
95 Breton Brezhoneg br 16.93 53,078 1,703,487 108,082
96 Sundanese Basa Sunda su 15.99 17,855 463,920 38,397
97 Volapük Volapük vo 15.28 119,968 3,301,998 248,681
98 Nepali नेपाली ne 15.31 27,333 458,982 68,710
99 Malay Bahasa Melayu ms 14.1 273,083 3,912,843 709,779
100 Newari नेवारी new 12.54 71,525 826,133 194,388
101 Javanese Basa Jawa jv 11.44 48,423 911,622 103,656
102 Interlingua Interlingua ia 11.47 14,394 552,552 24,701
103 Swedish Svenska sv 11.29 1,957,787 29,503,538 4,538,150
104 Latin Latina Latina 10.62 113,705 2,938,358 213,616
105 Malagasy Malagasy mg 10.66 79,392 804,701 212,646
106 Dutch Nederlands nl 10.23 1,813,103 44,494,427 3,421,345
107 Bashkir Башҡорт ba 9.92 33,992 477,788 76,949
108 Gujarati ગુજરાતી gu 8.92 25,739 384,280 54,757
109 Kazakh Қазақша kk 8.29 212,316 2,314,825 494,956
110 Tajik Тоҷикӣ tg 8.08 30,800 579,212 58,668
111 Banyumasan Basa Banyumasan map-bms 7.74 13,051 203,450 26,042
112 Samogitian Žemaitėška bat-smg 6.96 13,820 336,419 23,449
113 Irish Gaeilge ga 6.26 33,115 775,847 55,221
114 Scottish Gaelic Gàidhlig gd 6.51 18,324 504,729 29,658
115 Mazandarani مَزِروني mzn 5.45 12,055 130,247 24,176
116 Occitan Occitan oc 5.32 88,497 2,095,958 141,529
117 Yoruba Yorùbá yo 5.28 31,041 546,791 53,311
118 Ido Ido io 5.1 26,328 926,724 38,432
119 Chuvash Чăваш cv 4.51 30,422 559,716 49,672
120 Waray-Waray Winaray war 3.56 1,259,055 6,258,986 2,867,843
121 Cebuano Sinugboanong Binisaya ceb 3.54 1,208,577 5,769,693 2,790,276
122 Piedmontese Piemontèis pms 2.02 63,748 850,982 93,826
123 Kirghiz Кыргызча ky 1.38 27,559 189,287 42,991
124 Burmese language မ္ရန္‌မာစာ my 1.23 33,004 229,612 50,062
125 Buginese Basa Ugi bug 0.92 14,090 197,247 18,207
126 Western Panjabi شاہ مکھی پنجابی pnb 0.46 33,304 416,538 40,367
127 Haitian Krèyol ayisyen ht 0.3 52,930 708,062 61,463
128 Chechen Нохчийн ce 0.15 80,437 456,282 94,559
129 Minangkabau Bahaso Minangkabau min 0.002 221,170 483,421 227,922
No. Language Language (local) Wiki Depth Articles Edits Total


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 895 88 196 20 69 107 10 124 177 116 11 134 32 44 31 37 206 95 15 39 92 17 18 70 69 258 202 86 19 65
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.