Hi Danny, I'm been on the distribution list since the development of wikidata started and I think what everyone has set out to do and accomplished so far is amazing and will have a profound impact just as Wikipedia has.
I've been quietly on the sidelines absorbing some (I have to admit I cant follow all) the intellectual discussions among the participants. I do have a thought about this issue of "referential integrity" and "orphaned" data that I'd like to share. Mediawiki has "what links here" to an article, at least for information residing on the same site. It also maintains what a page looks like at a point in time. Since data referenced on a specific edition/revision of an article can now reside outside of that article, the intent of the information in the article will be lost if it is not tied to the revision of the associated data when that information changes. One way that this can probably be handled in some future implementation, if not already done, is to also carry within the reference the timestamp of the referenced data as the reference backwards from the data. It will be difficult and cumbersome for humans to do this but as the link is stored in mediawiki site, code can be added to make the reference. In that process, it can also inform the host of the data, to add it to the "what links here" so there is a backward reference. To prevent spam and other issues such as performance, only approved sites (such as wikipedia sites) can be added to "what links here". Feel free to include back the distribution list in your reply if you see merits in this suggestion. Best Regards, Alex On Apr 2, 2013, at 9:54 AM, "Denny Vrandečić" <[email protected]<mailto:[email protected]>> wrote: Hi Janyong, as Michael said, Wikidata does not automatically get updated in any case. We are planning to improve a bit the experience with moving a page in the Wikipedias, but it won't become automatic. Mostly because these issues are in general complicated. 2013/4/1 Jianyong Zhang <[email protected]<mailto:[email protected]>> Hi, Wikidata is a very useful effort. It seems associating an item with a wikipedia article. Then I'm thinking the following scenarios to understand it further: Say, an article is associated with an item Qx. 1) It becomes redirect to another article, will Qx be changed in this scenario? I expect that if a Wikipedia article gets moved, this will be updated on the Wikidata item manually. Otherwise the language links that were displayed on the original article would not show up. If an article gets turned into a redirect to an already existing article, this would be a merge (see Question 4). 2) It is deleted. Will Qx be also deleted? In some cases. If all articles in all languages of an item got deleted, than it might mean that the item itself should be deleted too, but this is not necessarily the case. 3) That article is split as 2 new articles, how will we generate items for them? It depends. Let us assume there was one article "Castor and Pollux". Now it gets split into two articles, "Castor" and "Pollux". In this case we would probably have three items in Wikidata: one for Castor, one for Pollux, and one for the pair of them. 4) Or multiple articles are merged as one, how will their items be changed? The same. There *might* be items for the individuals as well as for the compound. Not all Wikipedias might slice the world equally. How a merge really is handled, depends on what the corresponding articles and items are about. The good news is that these cases actually got a lot simpler than they used to be: they happened previously as well, but in that case you had to struggle with an ecosystem of bots who might revert your edits that were trying to clean up the interwiki links. Now it is all in Wikidata, and the situations should be easier to resolve. Just my two cents on these questions, Cheers, Denny _______________________________________________ Wikidata-l mailing list [email protected]<mailto:[email protected]> https://lists.wikimedia.org/mailman/listinfo/wikidata-l -- Project director Wikidata Wikimedia Deutschland e.V. | Obentrautstr. 72 | 10963 Berlin Tel. +49-30-219 158 26-0 | http://wikimedia.de Wikimedia Deutschland - Gesellschaft zur Förderung Freien Wissens e.V. Eingetragen im Vereinsregister des Amtsgerichts Berlin-Charlottenburg unter der Nummer 23855 B. Als gemeinnützig anerkannt durch das Finanzamt für Körperschaften I Berlin, Steuernummer 27/681/51985. _______________________________________________ Wikidata-l mailing list [email protected]<mailto:[email protected]> https://lists.wikimedia.org/mailman/listinfo/wikidata-l ===================================================================== Please note that this e-mail and any files transmitted from Memorial Sloan-Kettering Cancer Center may be privileged, confidential, and protected from disclosure under applicable law. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any reading, dissemination, distribution, copying, or other use of this communication or any of its attachments is strictly prohibited. If you have received this communication in error, please notify the sender immediately by replying to this message and deleting this message, any attachments, and all copies and backups from your computer.
_______________________________________________ Wikidata-l mailing list [email protected] https://lists.wikimedia.org/mailman/listinfo/wikidata-l
