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 878 = 21.73 × 40.43 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 767 = 50.67 × 15.13.

The smallest depth has Minangkabau Wikipedia which has the depth 0.0019 = 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 19 October 2014.

No. Language Language (local) Wiki Depth Articles Edits Total
1 English English en 878.43 4,631,667 740,466,702 34,083,200
2 Bengali বাংলা bn 492.41 32,645 1,782,928 356,625
3 Macedonian македонски mk 490.73 79,487 3,367,213 1,073,888
4 Malayalam മലയാളം ml 288.52 37,092 2,152,888 253,129
5 Egyptian Arabic مصرى arz 269.25 12,906 656,202 92,352
6 Hebrew עברית he 256.16 162,635 17,031,786 684,436
7 Thai ไทย th 248.7 90,380 5,990,181 503,688
8 Turkish Türkçe tr 209.86 235,587 15,738,805 1,163,538
9 Serbo-Croatian srpskohrvatski / српскохрватски sh 216.07 274,068 7,326,914 2,735,776
10 Bosnian bosanski bs 194.14 53,921 2,701,328 307,338
11 Arabic العربية ar 190.24 338,621 16,936,265 1,905,046
12 French français fr 188.96 1,555,468 110,832,427 6,884,573
13 Spanish español es 175.32 1,133,812 83,215,210 4,702,586
14 Persian فارسی fa 159.9 427,950 18,280,717 2,380,866
15 Urdu اردو ur 160.51 60,823 4,071,042 252,875
16 Sorani کوردی ckb 140.37 14,888 475,042 92,884
17 Simple English Simple English simple 128.06 117,262 12,309,556 336,743
18 Chinese 中文 zh 126.45 792,209 34,468,359 3,718,089
19 Portuguese português pt 123.12 846,417 41,435,388 3,623,981
20 Russian русский ru 114.78 1,158,085 78,739,077 3,929,982
21 Italian italiano it 103.92 1,152,159 74,118,881 3,817,829
22 Hungarian magyar hu 99.48 268,401 15,916,673 907,707
23 Romanian română ro 96.91 253,277 9,236,048 1,122,493
24 Latvian latviešu lv 95 56,595 2,303,135 231,477
25 German Deutsch de 89.39 1,769,495 140,855,707 4,885,124
26 Aragonese aragonés an 82.28 30,242 1,595,331 98,358
27 Korean 한국어 ko 82.26 293,253 14,921,048 972,120
28 Bavarian Boarisch bar 75.53 10,366 435,438 36,421
29 Venetian vèneto vec 75.43 10,457 577,308 31,758
30 Danish dansk da 69.99 192,359 8,187,179 643,535
31 Sinhalese සිංහල si 68.3 11,442 326,971 47,474
32 Japanese 日本語 ja 68.63 931,688 54,370,519 2,628,883
33 Marathi मराठी mr 64.97 40,698 1,325,720 151,649
34 Indonesian Bahasa Indonesia id 63.78 349,635 9,252,338 1,458,166
35 Welsh Cymraeg cy 63.71 60,231 5,213,231 138,628
36 Serbian српски / srpski sr 70.32 253,424 10,398,684 867,065
37 Yiddish ייִדיש yi 62.45 11,306 506,398 34,692
38 Uzbek oʻzbekcha uz 57.94 127,720 2,294,268 641,967
39 Hindi हिन्दी hi 56.25 115,662 2,707,945 481,406
40 Greek Ελληνικά el 44.66 110,583 5,027,506 287,229
42 Finnish suomi fi 44.59 357,764 15,256,814 955,701
41 Kannada ಕನ್ನಡ kn 43.76 16,974 464,535 55,940
43 Icelandic íslenska is 43.43 38,288 1,527,667 104,183
44 Sakha саха тыла sah 42.16 10,638 333,367 32,058
45 Georgian ქართული ka 39.74 85,861 2,870,082 243,529
46 Min Nan Bân-lâm-gú zh-min-nan 38.97 11,301 463,911 28,913
47 Czech čeština cs 38.73 307,223 12,341,612 791,398
48 Tamil தமிழ் ta 37.51 64,289 1,827,179 191,899
49 Tagalog Tagalog tl 37.16 62,703 1,522,055 201,926
50 Mongolian монгол mn 36.5 13,505 428,663 37,701
51 Ukrainian українська uk 36.47 532,887 15,237,674 1,563,873
52 Swahili Kiswahili sw 35.61 26,771 977,521 69,310
53 Afrikaans Afrikaans af 34.88 33,369 1,353,920 81,817
54 Quechua Runa Simi qu 34.73 19,179 653,721 50,637
55 Sanskrit संस्कृतम् sa 34.5 10,230 286,429 29,522
56 Armenian Հայերեն hy 34.18 136,506 2,649,992 474,023
57 Croatian hrvatski hr 34.21 149,188 4,571,611 410,764
58 Cantonese 粵語 zh-yue 33.5 33,157 929,539 94,268
59 Belarusian (Taraškievica) беларуская (тарашкевіца)‎ be-x-old 33.04 54,395 1,820,394 141,595
60 Malagasy Malagasy mg 32.1 47,060 729,682 179,185
61 Lombard lumbaart lmo 32.03 31,337 1,046,825 80,530
62 Low Saxon Plattdüütsch nds 31.28 21,978 763,055 54,970
63 Estonian eesti et 30.94 127,460 4,147,818 326,339
64 Luxembourgish Lëtzebuergesch lb 30.13 41,923 1,859,470 93,530
65 Catalan català ca 30.13 439,957 14,605,638 1,103,800
66 Azerbaijani azərbaycanca az 29.7 100,976 3,260,821 254,739
67 Bulgarian български bg 27.25 168,123 6,698,222 376,098
68 Alemannic Alemannisch als 27.17 17,439 609,805 41,011
69 Albanian shqip sq 26.3 51,821 1,615,785 126,041
70 Norwegian (Bokmål) norsk bokmål no 25.99 433,677 14,541,183 1,018,848
71 Kurdish Kurdî ku 25.99 20,760 660,961 49,813
72 Basque Euskara eu 25.04 203,829 4,830,122 547,090
73 Faroese føroyskt fo 24.64 10,630 307,005 25,980
74 Neapolitan Napulitano nap 23.32 14,198 688,082 28,038
75 Bishnupriya Manipuri বিষ্ণুপ্রিয়া মণিপুরী bpy 23.29 25,138 803,656 57,624
76 Walloon walon wa 22.66 13,528 318,166 34,834
77 Telugu తెలుగు te 22.3 59,392 1,306,277 156,448
78 Tatar татарча/tatarça tt 21.51 64,382 2,043,755 143,517
79 Scots Scots sco 21.06 26,855 450,914 78,173
80 Belarusian беларуская be 21.4 76,777 1,952,661 186,558
81 Slovene slovenščina sl 21.33 142,566 4,433,914 319,234
82 Sicilian sicilianu scn 20.22 24,535 737,716 54,528
83 Amharic አማርኛ am 19.86 16,229 332,319 41,911
84 Galician galego gl 19.65 117,317 3,477,636 259,329
85 Polish polski pl 19.68 1,071,979 40,812,652 2,167,867
86 Vietnamese Tiếng Việt vi 19.35 1,109,474 20,030,943 2,997,089
87 Nahuatl Nāhuatl nah 19.2 10,117 397,867 20,073
88 Punjabi ਪੰਜਾਬੀ pa 18.91 15,183 213,726 45,721
89 Slovak slovenčina sk 18.53 195,736 5,906,624 420,593
90 Esperanto Esperanto eo 17.83 204,168 5,632,938 446,998
91 Lithuanian lietuvių lt 17.8 167,952 4,830,214 361,935
92 Breton brezhoneg br 17.66 51,124 1,676,630 104,850
93 Norwegian (Nynorsk) norsk nynorsk nn 17.77 117,612 2,880,643 269,183
94 Asturian asturianu ast 16.69 19,783 785,927 37,417
95 Volapük Volapük vo 15.46 119,356 3,300,098 248,019
96 Sundanese Basa Sunda su 15.12 17,702 460,147 37,301
97 West Frisian Frysk fy 14.31 30,925 735,837 65,939
98 Nepali नेपाली ne 14.04 26,548 431,700 65,214
99 Malay Bahasa Melayu ms 13.99 270,642 3,864,996 702,084
100 Newar नेपाल भाषा new 12.6 70,884 822,343 192,698
101 Javanese Basa Jawa jv 11.45 48,169 908,528 103,082
102 Interlingua interlingua ia 11.39 14,311 551,401 24,490
103 Swedish svenska sv 10.81 1,946,205 28,205,470 4,503,411
104 Latin Latina la 10.41 111,539 2,894,670 207,992
105 Dutch Nederlands nl 8.92 1,793,922 43,333,925 3,264,474
106 Kazakh қазақша kk 8.35 208,775 2,255,445 490,023
107 Bashkir башҡортса ba 8.57 33,168 452,967 71,844
108 Gujarati ગુજરાતી gu 7.79 25,574 376,260 52,154
109 Banyumasan Basa Banyumasan map-bms 7.73 13,056 203,047 26,065
110 Samogitian žemaitėška bat-smg 7.1 13,682 334,810 23,297
111 Irish Gaeilge ga 6.64 31,960 764,386 53,803
112 Tajik тоҷикӣ tg 6.23 30,273 457,909 56,908
113 Scottish Gaelic Gàidhlig gd 5.64 17,364 488,454 27,073
114 Mazandarani مازِرونی mzn 5.33 12,011 128,774 23,979
115 Occitan occitan oc 5.32 87,724 2,085,811 140,168
116 Yoruba Yorùbá yo 5.32 30,988 546,054 53,323
117 Ido Ido io 5.07 26,047 924,400 37,925
118 Chuvash Чӑвашла cv 4.32 30,122 546,507 48,848
119 Cebuano Cebuano ceb 3.47 1,208,458 5,648,703 2,789,887
120 Waray-Waray Winaray war 3.44 1,258,785 6,061,264 2,862,643
121 Piedmontese Piemontèis pms 1.96 63,630 848,237 93,124
122 Kirghiz Кыргызча ky 1.31 27,423 186,604 42,405
123 Burmese language မြန်မာဘာသာ my 1.07 32,278 220,582 47,851
124 Buginese ᨅᨔ ᨕᨘᨁᨗ bug 0.91 14,089 197,023 18,173
125 Western Panjabi پنجابی pnb 0.45 33,156 411,755 40,103
126 Haitian Kreyòl ayisyen ht 0.27 53,182 705,829 61,276
127 Chechen нохчийн ce 0.21 63,118 377,820 76,213
128 Minangkabau Baso Minangkabau min 0.002 221,072 482,170 227,705
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 878 89 189 20 69 104 9 123 175 115 11 126 26 45 30 36 210 97 15 39 99 18 19 70 64 256 190 82 18 70
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]

Notes[edit]

  1. List of Wikipedias
  2. At November 2008.