I probably won't sleep tonight :) Best On Thu, Sep 10, 2015 at 12:48 AM Stryn <strynwiki(a)gmail.com> wrote: _______________________________________________ Wikidata mailing list Wikidata(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata

On Wed, Sep 9, 2015 at 9:49 PM, Lydia Pintscher <lydia.pintscher(a)wikimedia.de> wrote: For anyone who is curious: Here is the list of properties already created since unit support is available: https://www.wikidata.org/w/index.php?title=Special:ListProperties/quantity&… and here is the list of properties that were waiting on unit support: https://www.wikidata.org/wiki/Wikidata:Property_proposal/Pending/2 Those should change over the next hours/days. Cheers Lydia -- Lydia Pintscher - http://about.me/lydia.pintscher Product Manager for Wikidata Wikimedia Deutschland e.V. Tempelhofer Ufer 23-24 10963 Berlin www.wikimedia.de Wikimedia Deutschland - Gesellschaft zur Förderung Freien Wissens e. V. Eingetragen im Vereinsregister des Amtsgerichts Berlin-Charlottenburg unter der Nummer 23855 Nz. Als gemeinnützig anerkannt durch das Finanzamt für Körperschaften I Berlin, Steuernummer 27/681/51985. _______________________________________________ Wikidata mailing list Wikidata(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata

On 9 Sep 2015, at 22:08, Lydia Pintscher <lydia.pintscher(a)wikimedia.de> wrote: On Wed, Sep 9, 2015 at 9:49 PM, Lydia Pintscher <lydia.pintscher(a)wikimedia.de> wrote: For anyone who is curious: Here is the list of properties already created since unit support is available: https://www.wikidata.org/w/index.php?title=Special:ListProperties/quantity&… and here is the list of properties that were waiting on unit support: https://www.wikidata.org/wiki/Wikidata:Property_proposal/Pending/2 Those should change over the next hours/days.

On Tue, Sep 15, 2015 at 10:12 PM, Michael Peel &lt;email(a)mikepeel.net <mailto:email@mikepeel.net>> wrote: It seems to assume a default uncertainty on values, though: I just added the elevation above sea level to: https://www.wikidata.org/wiki/Q1513315 just specifying the central value, and it assumes that this value is +- 0.1 km - which isn't a good assumption to make... Did you mean to write 2.80 km about sea level? Then the error would be 0.01 km .... I am guessing the uncertainty follows the scientific notation of the number... 2.8 has the numeric uncertainty of (about) +/- 0.1... That sounds like a reasonable approach to me...

Taking that approach is a *really* bad idea. You can't just assume/make up uncertainties! As an example, say you have a length of 100m. Which significant digit do you assume is correct? Is this +- 100m, 10m or 1m? What if it's referring to the length of a 100m run, where the accuracy could be much higher than the significant digit given, e.g. 100m +- 1cm? Or what if it's the size of a crater on a distant planet, where it might be 100m+-50m? Or if the actual value is 100m +- 3m, but we say that it's +- 1m (which I see is the default in this case), which might be believable to readers but very misleading in reality? As thiemowmde says there: "The fact that the parser "guesses" a precision based on basically zero information always was and still is wrong. It must default to ±0. Everything else is misleading and a source of significant confusion and actual errors." ... although perhaps a better approach if possible might be to default to -1, or something else indicating the absence of data. Thanks, Mike _______________________________________________ Wikidata mailing list Wikidata(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata

Hoi, It is certainly one way to exclude many people who might be interested.

Hoi, Nitpicking.. I do not have a Wikipedia account, I have multiple all together in a SUL account. When a discussion takes place you effectively kill it by saying: nanana this is where I will not react and read it. I have a phabricator account and it is not as convenient as good old mail. Some insist on Phabricator, some on Meta, Mail, Wikidata.. The point is that we want that discussion. When you insist on concentrating, you get situations where you are blamed for the choices you make. Choices that may be unfortunate. And you will complain: but I told you that the discussion was at Phabricator.... Thanks. GerardM On 20 September 2015 at 21:13, Daniel Kinzler &lt;daniel.kinzler(a)wikimedia.de <mailto:daniel.kinzler@wikimedia.de>> wrote: Am 20.09.2015 um 20:52 schrieb Gerard Meijssen: interested. Focusing a discussion in one place is a bad thing? I find it rather problematic if conversations are scattered across several places. It makes it easy to miss half of it, especially when trying to read up later. You are welcome to keep this list in sync with the phabricator ticket if you think it's important. I suggest to make a separate threat with a meaningful subject line for that. BTW: I think you can sign into phabricator using your wikipedia account. That should allow most interrested people to particupate without having to create a new account. I'm not quite sure of the details though. -- Daniel Kinzler Senior Software Developer Wikimedia Deutschland Gesellschaft zur Förderung Freien Wissens e.V. _______________________________________________ Wikidata mailing list Wikidata(a)lists.wikimedia.org <mailto:Wikidata@lists.wikimedia.org> https://lists.wikimedia.org/mailman/listinfo/wikidata _______________________________________________ Wikidata mailing list Wikidata(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata

wrote:

wrote:

Focusing a discussion in one place is a bad thing?

Am 21.09.2015 um 12:08 schrieb Andy Mabbett: As long as we can agree on one place, it's fine with me. I was pointing to Phabricator because the discussion about deriving uncertainty intervals from the dignificant digits of decimal notation has been going on there for some weeks and months already. Also, the issue does seem rather technical to me. It's a question of how to interpret the decimal (and scientific) notation of measured quantities when parsing user input. -- Daniel Kinzler Senior Software Developer Wikimedia Deutschland Gesellschaft zur Förderung Freien Wissens e.V. _______________________________________________ Wikidata mailing list Wikidata(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata