On 08/02/2016 03:01 PM, Markus Kroetzsch wrote:
On 02.08.2016 13:11, Ghislain ATEMEZING wrote:
Thanks Yuri. I will try to define a kind a metric for those having  a
number of wikipedia entries. For example, a person with 127 entries
would be "famous" while another with just 10 is not "famous"...

Side remark @Stas: it could be very helpful to have the number of
Wikimedia project articles stored as a numeric value for a new property
in RDF. Doing a SPARQL query that computes this number and does
something with it afterwards almost always times out. The number could
be very useful as a heuristic "popularity" measure that can also help to
give the most "important" items first in a number of queries.

Best,

Markus

The kind of queries alluded to (I think) are ones like:

# Famous Danes
SELECT ?person ?personLabel (count(?articles) as ?rank) WHERE { 
   ?person wdt:P27 wd:Q35 .
   OPTIONAL {?articles schema:about ?person}
   SERVICE wikibase:label {bd:serviceParam wikibase:language "en" }
}
GROUP BY ?person ?personLabel
ORDER BY DESC(?rank)
LIMIT 50

Which is derived from the Repository Fringe Wikitalks by Navino Evans and Ewan McAndrew

This one with property counts times out if not restricted to females:

# Famous Danish females
SELECT ?person ?personLabel (count(?properties) as ?rank) WHERE {       
   ?person wdt:P27 wd:Q35 .
   ?person wdt:P21 wd:Q6581072 .
   ?person ?properties ?something
   SERVICE wikibase:label {bd:serviceParam wikibase:language "en" }
}
GROUP BY ?person ?personLabel
ORDER BY DESC(?rank)
LIMIT 50



Persons in Wikidata may not necessarily be famous. Persons may be in Wikidata because of structural needs.


/Finn




El mar., 2 ago. 2016 a las 12:52, Yuri Astrakhan
(<[email protected] <mailto:[email protected]>>) escribió:

    Any person in wikidata is "famous" - otherwise they wouldn't be
    notable and therefore wouldn't be there))
    If you prefer the stricter notability requirement(as used by
    Wikipedia), search only for those that have a wikipedia page


    On Aug 2, 2016 1:44 PM, "Ghislain ATEMEZING"
    <[email protected] <mailto:[email protected]>>
    wrote:

        Ahoy,
        I am curious to know if there is a way to know that a given
        person is "famous" in Wikidata. I want for example to retrieve
        "all famous French people born after a given date".

        Thanks in advance for your help.

        Best,
        Ghislain
        --
        -------
        "Love all, trust a few, do wrong to none" (W. Shakespeare)
        Web: http://atemezing.org

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--
-------
"Love all, trust a few, do wrong to none" (W. Shakespeare)
Web: http://atemezing.org


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