Tom, how do we know whether anything is the truth? I would argue that for completeness statements, as discussed by James Heald above, we should use pretty much the same criteria we use for anything else - i.e. not truth, but whether the sources support that statement.
I.e. I don't see much difference in the question of truth for the statement "Barack is the father of Malia" or "Barack's children are Malia and Sasha and that's a complete list". Cheers, Denny On Wed, Mar 2, 2016 at 9:51 AM Michael Karpeles <[email protected]> wrote: > Godels incompleteness theorem, QED. > On Mar 2, 2016 8:39 AM, "Tom Morris" <[email protected]> wrote: > >> I can see how one could measure completeness of article transcription in >> the 1911 edition of Encyclopedia Britannica, but I don't see how you can >> measure the completeness of a list of Obama's children, or anyone else's >> for that matter. >> >> First, it's temporally sensitive, so it depends on when you ask or what >> point in time you want to know about. Second, speaking as an occasional >> family historian, the father may not know all his children or, even if he >> does, be willing to divulge the complete list. >> >> This situation isn't unique to family composition, it applies to many, >> many aspects of the real world. How do you know something is "complete?" >> The fact that you've got everything in the latest Rembrandt catalog doesn't >> mean that you have a complete list of Rembrandt's paintings. >> >> Tom >> >> On Wed, Mar 2, 2016 at 11:27 AM, Fariz Darari <[email protected]> wrote: >> >>> Hello Jane, >>> >>> I did some look-up about the Encyclopedia Britannica on Wikisource >>> (thanks for the pointer), and yes, some part is complete ( >>> https://en.wikisource.org/wiki/1911_Encyclop%C3%A6dia_Britannica/Vol_1:1) >>> and some part is yet to be completed ( >>> https://en.wikisource.org/wiki/1911_Encyclop%C3%A6dia_Britannica/Vol_20:4 >>> ). >>> >>> With respect to that use case, COOL-WD could perform the following >>> inference: >>> 1. Suppose that we are complete for all the volumes of the EB. >>> 2. Suppose that for each volume, we are also complete for all the >>> sections of the EB. >>> 3. And last, for each section, we are complete for all the topics. >>> Then, one conclusion by COOL-WD is that querying for all the topics of >>> all the sections of all the volumes of the EB would give us the complete >>> answers :) >>> >>> As for the statistical inference (e.g., how far are we complete for the >>> EB wrt. volumes, sections, and topics), this is indeed an interesting idea >>> that could be featured on a next release of COOL-WD! >>> >>> Regards, >>> Fariz >>> >>> On Wed, Mar 2, 2016 at 11:26 AM, Jane Darnell <[email protected]> wrote: >>> >>>> I had no problem reading your mail. Thinking it over, this would also >>>> be a way to track the connection of dictionaries in Wikisource to items in >>>> Wikidata. So for example, Wikisource has lots of imported articles from the >>>> Encyclopedia Britannica 1911, and it would be nice to track >>>> 1) Completeness in Wikisource (how many articles are complete in >>>> section "A"?) >>>> 2) Completeness of matchups in section "A" to articles in English >>>> Wikipedia (how many subjects of Wikisource EB 1911 "A" articles have items >>>> on Wikidata with a link to English Wikipedia) >>>> >>>> Once you have all that, it would be interesting to know about the >>>> relative completeness of >>>> a) Places >>>> b) Events >>>> c) Male people >>>> d) Female people >>>> >>>> etc. >>>> >>>> On Wed, Mar 2, 2016 at 10:57 AM, Fariz Darari <[email protected]> >>>> wrote: >>>> >>>>> Hello Jane, >>>>> >>>>> thank you! Yes, that sounds like a suitable use case for COOL-WD! >>>>> >>>>> PS: Pardon the formatting of the announcement email, somehow the >>>>> linebreaks are vanished :( >>>>> I am now experimenting with another email client, hopefully the >>>>> linebreaks are there. >>>>> >>>>> Regards, >>>>> Fariz >>>>> >>>>> On Wed, Mar 2, 2016 at 10:38 AM, Jane Darnell <[email protected]> >>>>> wrote: >>>>> >>>>>> Wow this sounds great! I would love to use this for oeuvre catalogs >>>>>> of top painters! The latest Rembrandt catalog is complete on Wikidata, >>>>>> as >>>>>> well as a few other ones, but older ones are not yet complete. This could >>>>>> be a great tracking tool for WikiProjects. >>>>>> >>>>>> On Wed, Mar 2, 2016 at 10:17 AM, Darari Fariz < >>>>>> [email protected]> wrote: >>>>>> >>>>>>> Hello Wikidata community! Wikidata is a great platform for >>>>>>> collecting information, and the high quality work of many authors yields >>>>>>> very reliable information. Still, a challenge for users of Wikidata is >>>>>>> that >>>>>>> there is no way to see whether *all* data on a certain topic is in >>>>>>> Wikidata. For instance, it is easy to see that Malia and Sasha are >>>>>>> children >>>>>>> of Obama, but there is no way to specify that these are all his >>>>>>> children. >>>>>>> More generally, Wikidata stores many facts, but it stores no information >>>>>>> about which topic it contains all facts. Today we are happy to share >>>>>>> with >>>>>>> you a prototype that allows to add and manage such completeness >>>>>>> information, and would be happy to get your feedback on how useful you >>>>>>> consider this tool, or where you see space for improvements. With our >>>>>>> prototype, called COOL-WD (Completeness Tool for Wikidata), one can: 1. >>>>>>> See >>>>>>> completeness statements for Wikidata facts 2. Add, remove, aggregate and >>>>>>> filter completeness statements 3. See how completeness statements allow >>>>>>> conclusions about the completeness of SPARQL queries over Wikidata. >>>>>>> COOL-WD >>>>>>> is available at http://cool-wd.inf.unibz.it/ and a 3-min demo video >>>>>>> can be found at http://cool-wd.inf.unibz.it/coolwd-hd.mp4 It >>>>>>> employs various libraries, most importantly GWT, Apache Jena, SQLite and >>>>>>> the Wikidata API. The formal background and description of the tool >>>>>>> including an indexing technique for completeness statements have been >>>>>>> accepted as a research paper at ICWE 2016 ( >>>>>>> http://icwe2016.inf.usi.ch/) available to download at: >>>>>>> http://bit.ly/1VOsRCH Below are some naive ideas of how >>>>>>> completeness could be useful to users: > Use Case 1: Rido is a >>>>>>> geographer >>>>>>> who would like to contribute to Wikidata about the administrative >>>>>>> divisions >>>>>>> of regions. He cares so much about data quality, especially data >>>>>>> completeness, and is collaborating with Simon, another geographer. >>>>>>> However, >>>>>>> when completing data on Wikidata, there is currently no way to mark >>>>>>> which >>>>>>> data is complete. Rido and Simon must make these notes about >>>>>>> completeness >>>>>>> manually in, say, a Google Doc. Worse still, the effort from Rido and >>>>>>> Simon >>>>>>> to complete data could not be appreciated by Wikidata users since to the >>>>>>> users’ eyes, there is no difference between complete data and incomplete >>>>>>> data on Wikidata. Demo: Wikidata is complete for all administrative >>>>>>> divisions of Saxony (http://cool-wd.inf.unibz.it/?p=Q1202) > Use >>>>>>> Case 2: Jen is a developer of a moviegoer application. She usually >>>>>>> integrates data between multiple sources including Wikidata. If some >>>>>>> movies >>>>>>> on Wikidata have completeness statements, she might optimize her >>>>>>> application to not search in other data sources for those movies. Demo: >>>>>>> So, >>>>>>> when her app is asking on COOL-WD at >>>>>>> http://cool-wd.inf.unibz.it/?p=query for cast and screenwriters of >>>>>>> the movie Before Sunset (http://cool-wd.inf.unibz.it/?p=Q652186): >>>>>>> SELECT * WHERE { wd:Q652186 wdt:P161 ?c . wd:Q652186 wdt:P58 ?s } Her >>>>>>> app >>>>>>> gets not only query answers but also the completeness information of her >>>>>>> query. We are looking forward to your feedback! Best, Fariz, Simon, >>>>>>> Rido, >>>>>>> and Werner Free University of Bozen-Bolzano, Italy >>>>>>> >>>>>>> _______________________________________________ >>>>>>> Wikidata mailing list >>>>>>> [email protected] >>>>>>> https://lists.wikimedia.org/mailman/listinfo/wikidata >>>>>>> >>>>>>> >>>>>> >>>>>> _______________________________________________ >>>>>> Wikidata mailing list >>>>>> [email protected] >>>>>> https://lists.wikimedia.org/mailman/listinfo/wikidata >>>>>> >>>>>> >>>>> >>>>> _______________________________________________ >>>>> Wikidata mailing list >>>>> [email protected] >>>>> https://lists.wikimedia.org/mailman/listinfo/wikidata >>>>> >>>>> >>>> >>>> _______________________________________________ >>>> Wikidata mailing list >>>> [email protected] >>>> https://lists.wikimedia.org/mailman/listinfo/wikidata >>>> >>>> >>> >>> _______________________________________________ >>> Wikidata mailing list >>> [email protected] >>> https://lists.wikimedia.org/mailman/listinfo/wikidata >>> >>> >> >> _______________________________________________ >> Wikidata mailing list >> [email protected] >> https://lists.wikimedia.org/mailman/listinfo/wikidata >> >> _______________________________________________ > Wikidata mailing list > [email protected] > https://lists.wikimedia.org/mailman/listinfo/wikidata >
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