The use of "unknown" for the date of death in "probably dead persons" is pretty diffused. According to this query <https://query.wikidata.org/#%23Persons%20presumibky%20dead%2C%20with%20date%20of%20birth%20but%20with%20an%20unknown%20date%20of%20death%0A%23%20Demonstrates%20filtering%20for%20%22unknown%20value%22%0ASELECT%20%3Fhuman%20%3FhumanLabel%20%3Fage%0AWHERE%0A%7B%0A%20%20%20%20%3Fhuman%20wdt%3AP31%20wd%3AQ5.%20%20%20%20%20%23%20Instance%20of%20humans%0A%20%20%20%20%3Fhuman%20wdt%3AP569%20%3Fbirth.%20%20%20%23%20get%20date%20of%20birth%20%0A%09%3Fhuman%20wdt%3AP570%20%3Fdeath.%20%20%20%23%20Filter%20for%20date%20of%20death%20set%20to%20%22unknown%22%0A%09FILTER%20isBLANK%28%3Fdeath%29.%0A%20%20%0A%20%20%20%20BIND%28FLOOR%28%28NOW%28%29%20-%20%3Fbirth%29%2F365.2425%29%20AS%20%3Fage%29.%20%0A%20%20%20%20FILTER%20%28%3Fage%3E%20122%29.%0A%20%20%0A%09SERVICE%20wikibase%3Alabel%20%7B%20bd%3AserviceParam%20wikibase%3Alanguage%20%22%5BAUTO_LANGUAGE%5D%2Cen%22%20%7D%0A%7D%0AORDER%20BY%20DESC%28%3Fage%29> it is used in 5861 humans. It would be interesting to know how many records would need to be updated (i.e. known date of birth, no date of death, age > 122 years), but I got a timeout.
FabC Il giorno ven 20 set 2019 alle ore 17:59 Thomas Douillard < thomas.douill...@gmail.com> ha scritto: > We have also other properties on Wikidata to refine partial knowledge > about the chronology of a life : > https://www.wikidata.org/wiki/Property:P1317 – floruit > https://www.wikidata.org/wiki/Property:P2032 / > https://www.wikidata.org/wiki/Property:P2031 — floruit begin and end > that may overlap with https://www.wikidata.org/wiki/Property:P1319 > https://www.wikidata.org/wiki/Property:P1326 > > I found myself sometimes using a century precision date for somebody we > don’t really have information about the date of death but know it lived on > some century. > > > Le ven. 20 sept. 2019 à 00:25, Olaf Simons <olaf.sim...@pierre-marteau.com> > a écrit : > >> On FactGrid we created two properties for this (maybe clever, maybe >> daft): P290 and P291 for estimates (or for knowledge) of an earliest and >> latest point in the life span. The necessity is here that we have loads of >> people with just a single data point like "studied in Jena in 1776" or >> "appeared on a list of voters in 1849". If that is all you know, you do >> actually know that the person is likely to have a birth date some 17 (or in >> the voters case at least 21) years before. >> >> If a person is only once mentioned as retired that stretches the P290 >> date to some 60 years before and so on - you qualify the estimate >> accordingly. >> >> I have no idea whether this is a good move on our site since we are not >> really that advanced in running the more intriguing SPARQL searches. >> >> Olaf >> >> >> >> >> > Fabrizio Carrai <fabrizio.car...@gmail.com> hat am 19. September 2019 >> um 22:13 geschrieben: >> > >> > >> > So, the question is if it would be fine and ethic to set the "Date of >> > death" to "unknown" on the base of an old date of birth. >> > And about the biography of living persons, I found this [1] >> > >> > Deceased persons, corporations, or groups of personsRecently dead or >> > probably dead >> > Anyone born within the past 115 years (on or after 19 September 1904) is >> > covered by this policy unless a reliable source has confirmed their >> death. >> > Generally, this policy does not apply to material concerning people who >> are >> > confirmed dead by reliable sources. The only exception would be for >> people >> > who have recently died, in which case the policy can extend for an >> > indeterminate period beyond the date of death—six months, one year, two >> > years at the outside. Such extensions would apply particularly to >> > contentious or questionable material about the dead that has >> implications >> > for their living relatives and friends, such as in the case of a >> possible >> > suicide or a particularly gruesome crime. *Even absent confirmation of >> > death, for the purposes of this policy anyone born more than 115 years >> ago >> > is presumed dead* *unless* reliable sources confirm the person to have >> been >> > living within the past two years. If the date of birth is unknown, >> editors >> > should use reasonable judgement to infer—from dates of events noted in >> the >> > article—if it is plausible that the person was born within the last 115 >> > years and is therefore covered by this policy. >> > >> > This would support the set of "Date of death" to "unknown" on the base >> of >> > the "Date of birth". It remains hard to verify typo errors, but we are >> > doing our best to verify the data of the several wikiprojects. >> > >> > The property set would become effective if done in mass by a bot or >> similar. >> > >> > By the way, I would extend be period to 122 years [2] >> > >> > FabC >> > >> > [1] >> > >> https://en.wikipedia.org/wiki/Wikipedia:Biographies_of_living_persons#Deceased_persons,_corporations,_or_groups_of_persons >> > [2] https://en.wikipedia.org/wiki/Oldest_people >> > >> > Il giorno gio 19 set 2019 alle ore 21:29 Andy Mabbett < >> > a...@pigsonthewing.org.uk> ha scritto: >> > >> > > On Sat, 7 Sep 2019 at 07:53, Fabrizio Carrai < >> fabrizio.car...@gmail.com> >> > > wrote: >> > > >> > > > I found athletes with the "Date of born" but with NO "date of >> death". >> > > > So a query on the age show me athletes up to 149 years old. >> > > > Since the oldest know person was 122, what about to set "date of >> > > > death = unknown value" for all the persons resulting older such age >> ? >> > > >> > > Yes, but check that the date of birth isn't a typo (i.e. 1875 instead >> > > of 1975; or 1894 instead of 1984). >> > > >> > > Showing a living person as being dead would be a serious breach of the >> > > BLP policy. >> > > >> > > -- >> > > Andy Mabbett >> > > @pigsonthewing >> > > http://pigsonthewing.org.uk >> > > >> > > _______________________________________________ >> > > Wikidata mailing list >> > > Wikidata@lists.wikimedia.org >> > > https://lists.wikimedia.org/mailman/listinfo/wikidata >> > > >> > >> > >> > -- >> > *Fabrizio* >> > _______________________________________________ >> > Wikidata mailing list >> > Wikidata@lists.wikimedia.org >> > https://lists.wikimedia.org/mailman/listinfo/wikidata >> >> Dr. Olaf Simons >> Forschungszentrum Gotha der Universität Erfurt >> Schloss Friedenstein, Pagenhaus >> 99867 Gotha >> >> Büro: +49-361-737-1722 >> Mobil: +49-179-5196880 >> >> Privat: Hauptmarkt 17b/ 99867 Gotha >> >> _______________________________________________ >> Wikidata mailing list >> Wikidata@lists.wikimedia.org >> https://lists.wikimedia.org/mailman/listinfo/wikidata >> > _______________________________________________ > Wikidata mailing list > Wikidata@lists.wikimedia.org > https://lists.wikimedia.org/mailman/listinfo/wikidata > -- *Fabrizio*
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