Hi Markus, Indeed yes, that is also an issue. It can happen with new articles and with older articles.
Some articles get deleted as they are a duplicate of another article, or worse written (to bad to keep), or not an encyclopaedic subject to have in an encyclopaedia. Every day, on nl-wiki we check new articles if they are connected on Wikidata. Almost all articles that have a template that marks it as nominated for deletion we ignore and we do not add them to Wikidata. On nl-wiki we do this by hand, to make sure all basic statements are added, but if this is done by bots, you get a situation that they may not check for templates that mark articles for deletion. If an deleted item has statements, the question is if this information is at itself valuable to keep to be used and/or for the future. Romaine 2015-05-29 15:20 GMT+02:00 Markus Krötzsch <mar...@semantic-mediawiki.org>: > On 29.05.2015 13:42, Romaine Wiki wrote: > >> The problem that users face is that they experience the merging of items >> to difficult or didn't know that that was possible. They understand >> (with much annoyance) that they can only add a sitelink to one item. >> Therefore they delete a sitelink on one item, and add it to another item. >> >> Personally I think that an afterwards merge would be recommended here. >> Would it be possible to have a bot 1. determine what the original >> sitelink was that has been removed from the item, 2. see if this >> sitelink is added on another item, 3. check if the statements of both >> items match (otherwise: a list for humans/tool to check if it is the >> same), 4. if the same: automatically merge both items. >> >> I think it would be good to have more things being automated as much as >> possible. >> > > That's an important situation too, but I think in the example I gave > something else happened: the sitelink was not moved, but the Wikipedia > article that it was pointing to got deleted. So it's not just the link that > vanished: all information about the item that might have been found on the > deleted Wikipedia page is also gone. It's therefore quite hard to find out > what the item might have been about. > > Regards, > > Markus > > > 2015-05-29 13:23 GMT+02:00 Markus Krötzsch >> <mar...@semantic-mediawiki.org <mailto:mar...@semantic-mediawiki.org>>: >> >> >> Hi all, >> >> I just noticed that we have a number of "orphaned items" which were >> created and imported from some Wikipedia article that then got >> deleted. The result is an item with almost no data, no sitelinks, >> and all references claiming "imported from X Wikipedia". >> >> Example: >> https://www.wikidata.org/wiki/Q9386774 >> >> Here is what happened: >> https://www.wikidata.org/w/index.php?title=Q9386774&action=history >> >> It would be good to have a process for dealing with such cases. I am >> not saying that we must delete such items immediately, but it seems >> obvious that they need some special attention to become >> self-sustaining even without Wikipedia articles associated. >> >> Things that would be important to keep such items: >> * Links to other external datasets that confirm the existence of the >> thing. >> * Links to authoritative web sites that confirm the existence of the >> thing. >> * Proper references for all data (we always want that, but here it's >> even more critical: "imported from Wikipedia" is never great, but at >> least it leaves some hope of finding proper references if the >> Wikipedia page still exists). >> >> In cases like the above, deletion seems to be the most reasonable >> solution (the little data that is there can easily be added again if >> needed in the future). It seems that one could automatically collect >> such candidates for deletion (pages that are not used as property >> values, have no site links, have no identifier properties, were not >> edited since more than a month, an have less than, say, ten >> properties+labels+descriptions). >> >> Regards, >> >> Markus >> >> _______________________________________________ >> Wikidata mailing list >> Wikidata@lists.wikimedia.org <mailto: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 >> >> > > _______________________________________________ > Wikidata mailing list > Wikidata@lists.wikimedia.org > https://lists.wikimedia.org/mailman/listinfo/wikidata >
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