Hi Tim, It looks great!
I also wanting to better understand which items appear. For example, I am wondering why Kangaroo Island doesnt have a marker on the 'island' map http://tools.wmflabs.org/wiwosm/osm-on-ol/kml-on-ol.php?lang=en&uselang=en&zoom=5&lat=-35.833333&lon=137.25137&classes=23442 https://www.wikidata.org/wiki/Q210371 On Sat, May 10, 2014 at 3:19 PM, Tim Alder <t...@alder-digital.de> wrote: > Hello, > I'm glad to can announce my last experiment working with Wikidata and > Wikipedia-coordinates: > http://tools.wmflabs.org/wp-world/wikidata/superclasses.php?lang=en > > This list shows how many objects we have in different classes and > provide links to maps with only this specific class. > > I think it's much more useful than in the past where 80% of our > coordinates were simply a "landmark". Now we have maps full with roller > coaster or with museums. > > To create this tool I used properties "is instance of"[1] and "is > subclass of"[2]. To extract this properties it was necessary to use > "Wikidata Query". > > Now all classes, where an object is a member, are in a numerical > array-element in the database. So with an index on this array it should > have a good performances. > > Next steps are to try to bring more order inside this list and support > the community to create more "is instance of"-entries in Wikidata. (Only > 30% off all objects have such an entry). > > Greetings from Switzerland > Kolossos > > [1]https://www.wikidata.org/wiki/Property:P31 > [2]https://www.wikidata.org/wiki/Property:P279 > > > > _______________________________________________ > Wikidata-l mailing list > Wikidata-l@lists.wikimedia.org > https://lists.wikimedia.org/mailman/listinfo/wikidata-l -- John Vandenberg _______________________________________________ Wikidata-l mailing list Wikidata-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata-l
