<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
</head>
<body>
<div><br></div><div><br></div><div><br></div><div>13 lip 2022, 18:26 od andy@pigsonthewing.org.uk:<br></div><blockquote class="tutanota_quote" style="border-left: 1px solid #93A3B8; padding-left: 10px; margin-left: 5px;"><div>On Wed, 13 Jul 2022 at 13:01, Mateusz Konieczny via talk<br></div><div><talk@openstreetmap.org> wrote:<br></div><blockquote><div>10 lip 2022, 16:14 od andy@pigsonthewing.org.uk:<br></div><blockquote><div>On Sun, 10 Jul 2022 at 13:57, Mateusz Konieczny via talk<br></div><div><talk@openstreetmap.org> wrote:<br></div></blockquote><blockquote><blockquote><div>Based on my own similar efforts: Wikidata has large scale issues<br></div><div>with it classificaton and I would recommend manual tool-assisted changes.<br></div></blockquote></blockquote><div><br></div><blockquote>Relevant example?<br></blockquote><div><br></div><div>small sample:<br></div></blockquote><div>I explicitly asked for a /relevant/ example. None of those you have<br></div><div>given are relevant to the kinds of issues highlighted by the tool<br></div><div>under discussion, or the proposed fixes to them; nor do they preclude<br></div><div>fixes by bot.<br></div></blockquote><div dir="auto">In general you cannot assume that Wikidata classification is accurate,<br></div><div dir="auto">so anything making automatic edits based on it is not acceptable in OSM.<br></div><div dir="auto"><br></div><div dir="auto">Things like<br></div><pre>- USS Niagara museum ship is classified as "group of humans"
- all objects marked as canals are classified as "non-physical entity"
- University of San Francisco is classified as an action<br></pre><div dir="auto">are enough to demonstrate that any bot relying on such source will cause problems.<br></div><div dir="auto"><br></div><div dir="auto">Very low classification accuracy is relevant.<br></div><blockquote class="tutanota_quote" style="border-left: 1px solid #93A3B8; padding-left: 10px; margin-left: 5px;"><blockquote><div>Overall, Wikidata classification system is not allowing to<br></div><div>reliably answer questions such as "is this an event" or "is it a physical object"<br></div><div>or "is it ship or group of humans" or "is it physical or non-physical entity".<br></div></blockquote><div><br></div><div>Yes, it is.<br></div></blockquote><div dir="auto">No it is not (at least I failed to find one after sinking way too much time).<br></div><div dir="auto"><br></div><div dir="auto">How one may check whether given wikidata item describes event?<br></div><div dir="auto">(in way that is not listing <a href="https://www.wikidata.org/wiki/Q2859225" rel="noopener noreferrer" target="_blank">https://www.wikidata.org/wiki/Q2859225</a> <br></div><div dir="auto">and <a href="https://www.wikidata.org/wiki/Q49493599" rel="noopener noreferrer" target="_blank">https://www.wikidata.org/wiki/Q49493599</a> as events<br></div><div dir="auto">and lists Q134301 Q3182723 Q663435 as events?)<br></div><div dir="auto"><br></div><div dir="auto">Maybe I am using wrong method, but <span class=""><span class="">Los Angeles Aqueduct and</span></span><br></div><div dir="auto">community garden in New York City kept getting classified as events <br></div><div dir="auto"><span class=""><span class=""></span></span><br></div><div dir="auto">How one may check whether given wikidata item non-physical entity?<br></div><div dir="auto">(in way that is not listing <a href="https://www.wikidata.org/wiki/Q450876" rel="noopener noreferrer" target="_blank">https://www.wikidata.org/wiki/</a>Q57838673<br></div><div dir="auto"><a href="https://www.wikidata.org/wiki/Q589884" rel="noopener noreferrer" target="_blank">https://www.wikidata.org/wiki/Q589884</a> <a href="https://www.wikidata.org/wiki/Q672804" rel="noopener noreferrer" target="_blank">https://www.wikidata.org/wiki/Q672804</a><br></div><div dir="auto"><a href="https://www.wikidata.org/wiki/Q5734420" rel="noopener noreferrer" target="_blank">https://www.wikidata.org/wiki/Q5734420</a> <a href="https://www.wikidata.org/wiki/Q30593659" rel="noopener noreferrer" target="_blank">https://www.wikidata.org/wiki/Q30593659</a><br></div><div dir="auto"><a href="https://www.wikidata.org/wiki/Q75320653" rel="noopener noreferrer" target="_blank">https://www.wikidata.org/wiki/Q75320653</a> as non-physical entity)<br></div><div dir="auto"><br></div><div dir="auto">Right now all items listed here (cemetery, castle, artwork, garden)<br></div><div dir="auto">are indirectly classified as <span class="" id="railroad_spiral_loop_in_California_classified_as_object_that_exists_outside_physical_reality" data-mw-comment="{"type":"heading","level":0,"id":"h-railroad_spiral_loop_in_California_classified_as_object_that_exists_outside_phys-20220713185300","replies":["c-Mateusz_Konieczny-20220713185300-railroad_spiral_loop_in_California_classified_as_object_that_exists_outside_phys"],"headingLevel":2,"name":"h-Mateusz_Konieczny-20220713185300"}">objects that exists outside physical reality</span>.<br></div><div dir="auto"><br></div><div dir="auto">Anything fully automatic relying on source of that accuracy is not acceptable<br></div><div dir="auto">for deployment in OpenStreetMap.<br></div><div dir="auto"><br></div> </body>
</html>