Wikipedia article depth

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

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)$${\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}$${\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 942 = 21.09 × 44.64 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 1084 = 156.45 × 6.93.

The smallest depth has Chechen Wikipedia which has the depth 0.108 = 8.19 × 0.013.

Background

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)). 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

The table shows the list of Wikipedias with over 10,000 articles sorted by Depth.
Data on this page is automatically updated every day ().

N.B.: Default sorting is by language code, but it is possible to sort the table by any column.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133

Language Language (local) Wiki Depth Articles Edits Total Pages Afrikaans Afrikaans af 31.2 41,552 1,542,461 100,913 Alemannic Alemannisch als 22.89 21,844 720,740 49,132 Amharic አማርኛ am 40.61 13,191 346,408 42,708 Aragonese Aragonés an 79.59 31,595 1,629,116 102,193 Arabic العربية ar 222.14 443,425 23,967,243 2,634,625 Egyptian Arabic مصرى arz 327.13 15,483 785,659 128,922 Asturian Asturianu ast 4.2 47,164 1,019,616 73,041 Azerbaijani Azərbaycanca az 35.3 108,990 3,888,916 283,977 Bashkir Башҡорт ba 19.7 36,298 633,359 100,461 Bavarian Boarisch bar 64.63 21,595 620,622 86,357 Samogitian Žemaitėška bat-smg 5.79 15,886 354,882 26,285 Belarusian Беларуская be 20.28 121,180 2,474,043 316,324 Belarusian (Taraškievica) Беларуская (тарашкевіца) be-tarask 31.99 59,584 1,940,878 154,745 Bulgarian Български bg 24.23 221,039 7,847,403 494,076 Bengali বাংলা bn 470.74 44,412 2,426,695 467,222 Bishnupriya Manipuri বিষ্ণুপ্রিয়া মণিপুরী bpy 23.47 25,066 805,799 57,509 Breton Brezhoneg br 14.83 59,836 1,797,841 119,154 Bosnian Bosanski bs 132.4 70,082 2,972,721 344,668 Buginese Basa Ugi bug 0.95 14,112 198,300 18,298 Catalan Català ca 31.1 519,977 17,894,017 1,302,284 Chechen Нохчийн ce 0.11 150,926 1,378,375 168,260 Cebuano Sinugboanong Binisaya ceb 1.37 3,008,766 10,675,685 5,552,025 Sorani کوردی ckb 118.1 17,798 525,093 103,792 Czech Čeština cs 39.67 364,204 14,121,699 963,290 Chuvash Чăваш cv 4 35,465 591,361 57,602 Welsh Cymraeg cy 60.85 71,484 5,365,409 171,049 Danish Dansk da 66.51 219,426 8,705,736 741,781 German Deutsch de 101.25 1,981,457 163,176,006 5,711,574 Greek Ελληνικά el 71.64 122,213 6,155,192 378,845 English English en 941.59 5,249,342 850,470,071 40,323,248 Esperanto Esperanto eo 16.78 233,188 6,096,514 509,256 Spanish Español es 188.61 1,286,306 93,590,989 5,612,236 Estonian Eesti et 28.98 149,815 4,611,570 381,889 Basque Euskara eu 19.47 257,527 5,689,307 638,090 Persian فارسی fa 215.04 506,223 22,919,287 3,340,071 Finnish Suomi fi 44.94 401,901 16,805,888 1,087,100 Faroese Føroyskt fo 36.45 12,281 339,810 36,624 French Français fr 209.96 1,796,744 132,452,776 8,322,956 West Frisian Frysk fy 22.11 35,102 835,640 88,960 Irish Gaeilge ga 5.28 38,522 834,123 62,809 Scottish Gaelic Gàidhlig gd 21.5 14,123 535,878 29,481 Galician Galego gl 23.25 133,093 4,142,093 308,128 Gujarati ગુજરાતી gu 14.55 26,544 431,841 66,173 Hebrew עברית he 253.66 195,697 20,252,795 824,621 Hindi हिन्दी hi 111.43 109,129 3,275,677 603,657 Croatian Hrvatski hr 30.9 168,868 4,941,079 453,105 Upper Sorbian Hornjoserbsce hsb 31.03 10,740 350,063 27,511 Haitian Krèyol ayisyen ht 0.52 50,954 694,096 61,976 Hungarian Magyar hu 57.63 396,209 18,621,246 1,140,597 Armenian Հայերեն hy 34.18 208,255 4,604,922 674,130 Interlingua Interlingua ia 6.38 19,758 557,741 31,645 Indonesian Bahasa Indonesia id 105.09 386,046 12,869,679 1,911,050 Ido Ido io 5.86 26,770 898,575 40,537 Icelandic Íslenska is 42.19 41,184 1,595,461 112,084 Italian Italiano it 120.66 1,304,087 88,751,213 4,546,114 Japanese 日本語 ja 75.74 1,031,789 62,292,131 3,003,634 Javanese Basa Jawa jv 22.14 49,621 1,115,540 129,030 Georgian ქართული ka 34.75 107,219 3,251,822 298,796 Kazakh Қазақша kk 8.77 216,691 2,576,368 499,234 Kannada ಕನ್ನಡ kn 55.66 20,876 647,255 73,280 Korean 한국어 ko 107.41 360,238 19,149,197 1,352,426 Kurdish Kurdî ku 29.57 22,254 702,211 56,613 Kirghiz Кыргызча ky 0.29 57,213 246,945 74,103 Latin Latina la 11.45 125,666 3,269,338 241,137 Luxembourgish Lëtzebuergesch lb 29.57 46,691 2,029,490 104,234 Limburgish Limburgs li 108.57 11,490 425,254 54,252 Lombard Lumbaart lmo 31.94 34,338 1,087,613 90,242 Lithuanian Lietuvių lt 21.46 179,572 5,262,188 412,472 Latvian Latviešu lv 84.41 72,574 2,665,192 294,051 Banyumasan Basa Banyumasan map-bms 8.6 13,244 209,370 27,253 Malagasy Malagasy mg 10.13 82,716 831,641 217,295 Minangkabau Bahaso Minangkabau min 0.846 221,910 1,474,296 316,488 Macedonian Македонски mk 139.73 86,854 4,310,524 399,355 Malayalam മലയാളം ml 267.87 44,873 2,435,033 304,642 Mongolian Монгол mn 46.85 15,860 501,005 50,234 Marathi मराठी mr 75.52 44,611 1,456,566 181,443 Hill Mari Кырык Мары (Kyryk Mary) mrj 1.12 10,127 91,632 14,380 Malay Bahasa Melayu ms 15.96 285,168 4,217,839 772,760 Burmese language မ္ရန္‌မာစာ my 4.08 33,230 337,811 61,967 Mazandarani مَزِروني mzn 6.57 12,360 138,006 26,149 Nahuatl Nāhuatl nah 27.25 11,209 431,667 25,404 Neapolitan Nnapulitano nap 17.97 14,361 698,544 26,137 Low Saxon Plattdüütsch nds 31.82 25,594 807,111 67,273 Nepali नेपाली ne 22.61 28,150 566,898 77,713 Newari नेवारी new 12.47 72,370 841,590 195,556 Dutch Nederlands nl 11.82 1,875,702 48,585,492 3,641,404 Norwegian (Nynorsk) Nynorsk nn 16.11 130,793 2,900,139 299,522 Norwegian (Bokmål) Norsk (Bokmål) no 36.67 448,476 16,628,463 1,168,350 Occitan Occitan oc 5.52 90,221 2,171,077 144,975 Oriya ଓଡ଼ିଆ or 67.48 10,965 255,875 51,293 Ossetian Иронау os 97.22 10,269 484,482 38,994 Punjabi ਪੰਜਾਬੀ pa 24.89 23,415 348,177 79,088 Polish Polski pl 23.19 1,185,859 46,813,111 2,507,669 Piedmontese Piemontèis pms 2.31 63,966 860,671 96,551 Western Panjabi شاہ مکھی پنجابی pnb 0.74 42,071 466,730 54,470 Portuguese Português pt 137.01 938,293 47,805,544 4,189,738 Quechua Runa Simi qu 33.34 19,667 661,297 51,292 Romanian Română ro 83.1 371,985 11,096,015 1,698,817 Russian Русский ru 137.45 1,344,263 93,336,363 4,987,277 Sanskrit संस्कृतम् sa 106.45 10,183 401,975 45,548 Sakha Саха тыла sah 51.9 10,912 348,923 36,249 Sicilian Sicilianu scn 20.75 25,349 753,449 57,149 Scots Scots sco 25.89 41,382 570,440 148,989 Serbo-Croatian Srpskohrvatski / Српскохрватски sh 794.21 435,176 40,408,099 4,550,924 Sinhalese සිංහල si 89.72 12,548 389,986 58,635 Simple English Simple English simple 173.45 120,895 12,873,138 402,390 Slovak Slovenčina sk 18.52 214,447 6,391,325 462,755 Slovenian Slovenščina sl 24.52 153,205 4,854,962 359,722 Albanian Shqip sq 32.17 60,269 1,812,149 162,704 Serbian Српски sr 66.19 338,942 12,403,269 1,194,826 Sundanese Basa Sunda su 20.59 19,151 493,633 45,546 Swedish Svenska sv 5.49 3,528,527 37,279,004 7,150,825 Swahili Kiswahili sw 23.62 34,372 1,024,637 81,479 Tamil தமிழ் ta 31.9 88,768 2,201,161 261,617 Telugu తెలుగు te 44.39 65,523 1,961,056 207,538 Tajik Тоҷикӣ tg 6.17 66,728 827,486 133,254 Thai ไทย th 226.89 111,964 6,992,569 610,138 Tagalog Tagalog tl 37.61 65,395 1,607,718 210,518 Turkish Türkçe tr 218.44 282,356 18,598,318 1,445,947 Tatar Татарча tt 25.28 69,507 2,172,185 166,169 Ukrainian Українська uk 38.7 653,411 19,051,378 1,955,885 Urdu اردو ur 168.23 107,990 5,220,635 571,372 Uzbek O‘zbek uz 61.4 128,688 2,646,869 614,594 Venetian Vèneto vec 77.48 10,817 599,110 33,247 Vietnamese Tiếng Việt vi 26.89 1,148,938 25,339,233 3,298,575 Volapük Volapük vo 15.24 120,393 3,310,640 249,368 Walloon Walon wa 22.48 14,230 329,640 36,762 Waray-Waray Winaray war 3.57 1,261,734 6,289,471 2,872,403 Yiddish ייִדיש yi 45.93 13,469 528,912 37,905 Yoruba Yorùbá yo 5.3 31,461 554,436 54,095 Chinese 中文 zh 165.89 902,186 42,866,183 4,784,111 Min Nan Bân-lâm-gú zh-min-nan 10.53 200,569 1,519,748 614,247 Cantonese 粵語 zh-yue 25.54 47,150 1,074,500 130,036

Trends

Trend of article depth.

The table shows how the depth of the largest 30 languages 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	942	101	210	23	76	121	12	137	189	137	5	166	37	45	31	39	218	83	15	40	58	17	19	67	105	254	222	107	21	66
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

• Efficiency

Lists of Wikipedias by various criteria: edit

• List of Wikipedias by article count, users, file count and depth (Source) (updated daily)
• List of Wikipedias by edits per article and depth (updated daily)
• List of Wikipedias by language group, family, and macrofamily (updated daily)
• List of Wikipedias by speakers per article (updated daily)
• List of Wikipedias by sample of articles and expanded sample of articles (both updated monthly)
• List of Wikipedias having zero local media files
• List of some Wikipedias by date created
• List of largest wikis (not just Wikimedia wikis)
• Wikipedia milestones (+en:Wikipedia:Milestone statistics) (tracking of major article-count milestones)
• Wikimedia News (announcements and tracking of milestones for all Wikimedia projects)