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Item talk:Q3646: Difference between revisions
→= Handling competing location claims
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= Other queries = | = Other queries = | ||
== Handling competing location claims = | == Handling competing location claims == | ||
One core issue we deal with is rectifying cases where we have multiple sources of mine information asserting different geographic locations (generally point coordinates). We've teed up a few examples to work through, both in terms of how we model the information and in how we reason on what we encode. | One core issue we deal with is rectifying cases where we have multiple sources of mine information asserting different geographic locations (generally point coordinates). We've teed up a few examples to work through, both in terms of how we model the information and in how we reason on what we encode. | ||
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?mine wdt:P1 wd:Q3646 ; # Instance of mine | ?mine wdt:P1 wd:Q3646 ; # Instance of mine | ||
wdt:P6 ?location . # coordinate location property | wdt:P6 ?location . # coordinate location property | ||
SERVICE wikibase:label { bd:serviceParam wikibase:language "en" . } | |||
} | } | ||
GROUP BY ?mine ?mineLabel | GROUP BY ?mine ?mineLabel | ||
HAVING (COUNT(?location) > 1) | HAVING (COUNT(?location) > 1) | ||
</sparql> | </sparql> | ||