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Creating synergies and interactions among the analysts and the “producers” of data. See details.

  1. Jeux de données
  2. Wikidata
  3. Requêtes
  4. List of countries ordered by the number of their cities with female mayor

Réutilisez ces données dans votre code

Requête, point d'accès et code permettant de réutiliser les mêmes données
https://query.wikidata.org/sparql
PREFIX bd: <http://www.bigdata.com/rdf#> 
PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wd: <http://www.wikidata.org/entity/> 
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX p: <http://www.wikidata.org/prop/>
PREFIX q: <http://www.wikidata.org/prop/qualifier/>
PREFIX v: <http://www.wikidata.org/prop/statement/>

SELECT ?countryLabel (count(*) as ?count) WHERE {
  ?city wdt:P31/wdt:P279* wd:Q515 .  # find instances of subclasses of city
  ?city p:P6 ?statement .      # with a P6 (head of goverment) statement
  ?statement v:P6 ?mayor .     # ... that has the value ?mayor
  ?mayor wdt:P21 wd:Q6581072 .     # ... where the ?mayor has P21 (sex or gender) female
  FILTER NOT EXISTS { ?statement q:P582 ?x }  # ... but the statement has no P582 (end date) qualifier
  ?city wdt:P17 ?country   # Also find the country of the city
 
  # If available, get the "ru" label of the country, use "en" as fallback
  SERVICE wikibase:label {
    bd:serviceParam wikibase:language "en" .
  }
 } GROUP BY ?country ?countryLabel ORDER BY DESC(?count) LIMIT 100
Comment écrire une requête SPARQL ? 
{{#sparql:PREFIX bd: <http://www.bigdata.com/rdf#> 
PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wd: <http://www.wikidata.org/entity/> 
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX p: <http://www.wikidata.org/prop/>
PREFIX q: <http://www.wikidata.org/prop/qualifier/>
PREFIX v: <http://www.wikidata.org/prop/statement/>

SELECT ?countryLabel (count(*) as ?count) WHERE {
  ?city wdt:P31/wdt:P279* wd:Q515 .  # find instances of subclasses of city
  ?city p:P6 ?statement .      # with a P6 (head of goverment) statement
  ?statement v:P6 ?mayor .     # ... that has the value ?mayor
  ?mayor wdt:P21 wd:Q6581072 .     # ... where the ?mayor has P21 (sex or gender) female
  FILTER NOT EXISTS { ?statement q:P582 ?x }  # ... but the statement has no P582 (end date) qualifier
  ?city wdt:P17 ?country   # Also find the country of the city
 
  # If available, get the "ru" label of the country, use "en" as fallback
  SERVICE wikibase:label {
    bd:serviceParam wikibase:language "en" .
  }
 } GROUP BY ?country ?countryLabel ORDER BY DESC(?count) LIMIT 100
| endpoint = https://query.wikidata.org/sparql
| chart=google.visualization.GeoChart
| options=
| log=2
}}
Comment installer LinkedWiki dans mon wiki ? Comment insérer ce graphique dans mon wiki ?
Tester ce script dans un nouvel onglet. 
<html>
    <head>
        <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"  async></script>
    </head>
    <body onload="testQuery();">
        <script>
function testQuery(){
    var endpoint = "https://query.wikidata.org/sparql";
    var query = "PREFIX bd: <http://www.bigdata.com/rdf#> \n\
PREFIX wikibase: <http://wikiba.se/ontology#>\n\
PREFIX wd: <http://www.wikidata.org/entity/> \n\
PREFIX wdt: <http://www.wikidata.org/prop/direct/>\n\
PREFIX p: <http://www.wikidata.org/prop/>\n\
PREFIX q: <http://www.wikidata.org/prop/qualifier/>\n\
PREFIX v: <http://www.wikidata.org/prop/statement/>\n\
\n\
SELECT ?countryLabel (count(*) as ?count) WHERE {\n\
  ?city wdt:P31/wdt:P279* wd:Q515 .  # find instances of subclasses of city\n\
  ?city p:P6 ?statement .      # with a P6 (head of goverment) statement\n\
  ?statement v:P6 ?mayor .     # ... that has the value ?mayor\n\
  ?mayor wdt:P21 wd:Q6581072 .     # ... where the ?mayor has P21 (sex or gender) female\n\
  FILTER NOT EXISTS { ?statement q:P582 ?x }  # ... but the statement has no P582 (end date) qualifier\n\
  ?city wdt:P17 ?country   # Also find the country of the city\n\
 \n\
  # If available, get the \"ru\" label of the country, use \"en\" as fallback\n\
  SERVICE wikibase:label {\n\
    bd:serviceParam wikibase:language \"en\" .\n\
  }\n\
 } GROUP BY ?country ?countryLabel ORDER BY DESC(?count) LIMIT 100"

   // $('#bodyContentResearch').append(queryDataset);
    $.ajax({
                url: endpoint,
                dataType: 'json',
                data: {
                    queryLn: 'SPARQL',
                    query: query ,
                    limit: 'none',
                    infer: 'true',
                    Accept: 'application/sparql-results+json'
                },
                success: displayResult,
                error: displayError
        });
}

function displayError(xhr, textStatus, errorThrown) {
    console.log(textStatus);
    console.log(errorThrown);
}

function displayResult(data) {
    $.each(data.results.bindings, function(index, bs) {
        console.log(bs);
        $("body").append(JSON.stringify(bs) + "<hr/>");
    });
}

        </script>
    </body>
</html>
Tester ce script dans un nouvel onglet (attention, plusieurs graphiques nécessitent une clé API).
Comment insérer ce graphique dans ma page HTML ? 
<html>
    <head>
     <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">

     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.9.0/css/all.min.css">

     <script
            src="https://code.jquery.com/jquery-3.4.1.min.js"
            integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo="
            crossorigin="anonymous"> </script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"> </script>
     <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"> </script>

     <script type="text/javascript" src="https://bordercloud.github.io/sgvizler2/sgvizler2/sgvizler2.js" defer> </script>
     <script type="text/javascript" src="https://io.datascience-paris-saclay.fr/js/initExampleHTML.js"  defer > </script>
    </head>
<body style="margin:0;">
<div id="sgvzl_example_query"
   data-sgvizler-endpoint="https://query.wikidata.org/sparql"
   data-sgvizler-query="PREFIX bd: &lt;http://www.bigdata.com/rdf#&gt; 
PREFIX wikibase: &lt;http://wikiba.se/ontology#&gt;
PREFIX wd: &lt;http://www.wikidata.org/entity/&gt; 
PREFIX wdt: &lt;http://www.wikidata.org/prop/direct/&gt;
PREFIX p: &lt;http://www.wikidata.org/prop/&gt;
PREFIX q: &lt;http://www.wikidata.org/prop/qualifier/&gt;
PREFIX v: &lt;http://www.wikidata.org/prop/statement/&gt;

SELECT ?countryLabel (count(*) as ?count) WHERE {
  ?city wdt:P31/wdt:P279* wd:Q515 .  # find instances of subclasses of city
  ?city p:P6 ?statement .      # with a P6 (head of goverment) statement
  ?statement v:P6 ?mayor .     # ... that has the value ?mayor
  ?mayor wdt:P21 wd:Q6581072 .     # ... where the ?mayor has P21 (sex or gender) female
  FILTER NOT EXISTS { ?statement q:P582 ?x }  # ... but the statement has no P582 (end date) qualifier
  ?city wdt:P17 ?country   # Also find the country of the city
 
  # If available, get the &quot;ru&quot; label of the country, use &quot;en&quot; as fallback
  SERVICE wikibase:label {
    bd:serviceParam wikibase:language &quot;en&quot; .
  }
 } GROUP BY ?country ?countryLabel ORDER BY DESC(?count) LIMIT 100"
    data-sgvizler-chart='google.visualization.GeoChart'
    data-sgvizler-chart-options=''
    data-sgvizler-endpoint_output_format='json'
    data-sgvizler-log='2'
    style='width:100%; height:400px;'  />

<script>
/*$(function() {
   sgvizler2.containerDrawAll({
       // Google Api key
       googleApiKey : "GOOGLE_MAP_API_KEY",
       // OpenStreetMap Access Token
       //  https://www.mapbox.com/api-documentation/#access-tokens
       osmAccessToken : "OSM_MAP_API_KEY"
     });
});*/
</script>

</body>
</html>

from SPARQLWrapper import SPARQLWrapper, JSON

sparql = SPARQLWrapper("https://query.wikidata.org/sparql")
sparql.setQuery("""
    PREFIX bd: <http://www.bigdata.com/rdf#> 
PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wd: <http://www.wikidata.org/entity/> 
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX p: <http://www.wikidata.org/prop/>
PREFIX q: <http://www.wikidata.org/prop/qualifier/>
PREFIX v: <http://www.wikidata.org/prop/statement/>

SELECT ?countryLabel (count(*) as ?count) WHERE {
  ?city wdt:P31/wdt:P279* wd:Q515 .  # find instances of subclasses of city
  ?city p:P6 ?statement .      # with a P6 (head of goverment) statement
  ?statement v:P6 ?mayor .     # ... that has the value ?mayor
  ?mayor wdt:P21 wd:Q6581072 .     # ... where the ?mayor has P21 (sex or gender) female
  FILTER NOT EXISTS { ?statement q:P582 ?x }  # ... but the statement has no P582 (end date) qualifier
  ?city wdt:P17 ?country   # Also find the country of the city
 
  # If available, get the "ru" label of the country, use "en" as fallback
  SERVICE wikibase:label {
    bd:serviceParam wikibase:language "en" .
  }
 } GROUP BY ?country ?countryLabel ORDER BY DESC(?count) LIMIT 100""")
sparql.setReturnFormat(JSON)
results = sparql.query().convert()

for result in results["results"]["bindings"]:
    print(result)
    #print(result["label"]["value"])
Howto use SPARQL with Python ? 
library(SPARQL) # SPARQL querying package
library(ggplot2)

# Step 1 - Set up preliminaries and define query
# Define the data.gov endpoint
    endpoint <- "https://query.wikidata.org/sparql"
# create query statement
    query <- "PREFIX bd: <http://www.bigdata.com/rdf#> 
PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wd: <http://www.wikidata.org/entity/> 
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX p: <http://www.wikidata.org/prop/>
PREFIX q: <http://www.wikidata.org/prop/qualifier/>
PREFIX v: <http://www.wikidata.org/prop/statement/>

SELECT ?countryLabel (count(*) as ?count) WHERE {
  ?city wdt:P31/wdt:P279* wd:Q515 .  # find instances of subclasses of city
  ?city p:P6 ?statement .      # with a P6 (head of goverment) statement
  ?statement v:P6 ?mayor .     # ... that has the value ?mayor
  ?mayor wdt:P21 wd:Q6581072 .     # ... where the ?mayor has P21 (sex or gender) female
  FILTER NOT EXISTS { ?statement q:P582 ?x }  # ... but the statement has no P582 (end date) qualifier
  ?city wdt:P17 ?country   # Also find the country of the city
 
  # If available, get the "ru" label of the country, use "en" as fallback
  SERVICE wikibase:label {
    bd:serviceParam wikibase:language "en" .
  }
 } GROUP BY ?country ?countryLabel ORDER BY DESC(?count) LIMIT 100"
# Step 2 - Use SPARQL package to submit query and save results to a data frame
qd <- SPARQL(endpoint,query)
df <- qd$results
SPARQL with R in less than 5 minutes 
#!/usr/bin/env ruby
#
# Install sparql for Ruby
#   gem update --system
#   gem install sparql
#
require 'sparql/client'

endpoint = "https://query.wikidata.org/sparql"
sparql = <<-EOT
PREFIX bd: <http://www.bigdata.com/rdf#> 
PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wd: <http://www.wikidata.org/entity/> 
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX p: <http://www.wikidata.org/prop/>
PREFIX q: <http://www.wikidata.org/prop/qualifier/>
PREFIX v: <http://www.wikidata.org/prop/statement/>

SELECT ?countryLabel (count(*) as ?count) WHERE {
  ?city wdt:P31/wdt:P279* wd:Q515 .  # find instances of subclasses of city
  ?city p:P6 ?statement .      # with a P6 (head of goverment) statement
  ?statement v:P6 ?mayor .     # ... that has the value ?mayor
  ?mayor wdt:P21 wd:Q6581072 .     # ... where the ?mayor has P21 (sex or gender) female
  FILTER NOT EXISTS { ?statement q:P582 ?x }  # ... but the statement has no P582 (end date) qualifier
  ?city wdt:P17 ?country   # Also find the country of the city
 
  # If available, get the "ru" label of the country, use "en" as fallback
  SERVICE wikibase:label {
    bd:serviceParam wikibase:language "en" .
  }
 } GROUP BY ?country ?countryLabel ORDER BY DESC(?count) LIMIT 100
EOT

#For Wikidata, the method get is required
#For other SPARQL endpoints, the method post is prefered
client = SPARQL::Client.new(endpoint, :method => :get)
rows = client.query(sparql)

puts "Number of rows: #{rows.size}"
for row in rows
  for key,val in row do
    # print "#{key.to_s.ljust(10)}: #{val}\t"
    print "#{key}: #{val}\t"
  end
  print "\n"
end
Doc Ruby for SPARQL 1.1 
endpoint = 'https://query.wikidata.org/sparql';

query = ['PREFIX bd: <http://www.bigdata.com/rdf#>  '...
'PREFIX wikibase: <http://wikiba.se/ontology#> '...
'PREFIX wd: <http://www.wikidata.org/entity/>  '...
'PREFIX wdt: <http://www.wikidata.org/prop/direct/> '...
'PREFIX p: <http://www.wikidata.org/prop/> '...
'PREFIX q: <http://www.wikidata.org/prop/qualifier/> '...
'PREFIX v: <http://www.wikidata.org/prop/statement/> '...
' '...
'SELECT ?countryLabel (count(*) as ?count) WHERE { '...
'  ?city wdt:P31/wdt:P279* wd:Q515 .  # find instances of subclasses of city '...
'  ?city p:P6 ?statement .      # with a P6 (head of goverment) statement '...
'  ?statement v:P6 ?mayor .     # ... that has the value ?mayor '...
'  ?mayor wdt:P21 wd:Q6581072 .     # ... where the ?mayor has P21 (sex or gender) female '...
'  FILTER NOT EXISTS { ?statement q:P582 ?x }  # ... but the statement has no P582 (end date) qualifier '...
'  ?city wdt:P17 ?country   # Also find the country of the city '...
'  '...
'  # If available, get the "ru" label of the country, use "en" as fallback '...
'  SERVICE wikibase:label { '...
'    bd:serviceParam wikibase:language "en" . '...
'  } '...
' } GROUP BY ?country ?countryLabel ORDER BY DESC(?count) LIMIT 100 '];

url_head = strcat(endpoint,'?query=');
url_query = urlencode(query);
format = 'text/tab-separated-values';
url_tail = strcat('&format=', format);

url = strcat(url_head, url_query, url_tail);

% get the data from the endpoint
query_results = urlread(url);

% write the data to a file so that tdfread can parse it
fid = fopen('query_results.txt','w');
if fid>=0
    fprintf(fid, '%s\n', query_results)
    fclose(fid)
end

% this reads the tsv file into a struct
sparql_data = tdfread('query_results.txt')
Project Github MatlabSPARQL 
<?php
require __DIR__ . '/../vendor/autoload.php';
use BorderCloud\SPARQL\SparqlClient;

$endpoint ="https://query.wikidata.org/sparql";
$sp_readonly = new SparqlClient();
$sp_readonly->setEndpointRead($endpoint);
$q = <<<EOD
PREFIX bd: <http://www.bigdata.com/rdf#> 
PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wd: <http://www.wikidata.org/entity/> 
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX p: <http://www.wikidata.org/prop/>
PREFIX q: <http://www.wikidata.org/prop/qualifier/>
PREFIX v: <http://www.wikidata.org/prop/statement/>

SELECT ?countryLabel (count(*) as ?count) WHERE {
  ?city wdt:P31/wdt:P279* wd:Q515 .  # find instances of subclasses of city
  ?city p:P6 ?statement .      # with a P6 (head of goverment) statement
  ?statement v:P6 ?mayor .     # ... that has the value ?mayor
  ?mayor wdt:P21 wd:Q6581072 .     # ... where the ?mayor has P21 (sex or gender) female
  FILTER NOT EXISTS { ?statement q:P582 ?x }  # ... but the statement has no P582 (end date) qualifier
  ?city wdt:P17 ?country   # Also find the country of the city
 
  # If available, get the "ru" label of the country, use "en" as fallback
  SERVICE wikibase:label {
    bd:serviceParam wikibase:language "en" .
  }
 } GROUP BY ?country ?countryLabel ORDER BY DESC(?count) LIMIT 100EOD;
$rows = $sp_readonly->query($q, 'rows');
$err = $sp_readonly->getErrors();
if ($err) {
      print_r($err);
      throw new Exception(print_r($err,true));
}

foreach($rows["result"]["variables"] as $variable){
        printf("%-20.20s",$variable);
        echo '|';
 }
 echo "\n";

foreach ($rows["result"]["rows"] as $row){
        foreach($rows["result"]["variables"] as $variable){
                printf("%-20.20s",$row[$variable]);
        echo '|';
        }
        echo "\n";
 }
 ?>
Project Github BorderCloud/SPARQL 
import com.bordercloud.sparql.Endpoint;
import java.util.ArrayList;
import java.util.HashMap;

public class Main {

    public static void main(String[] args) {
        try {
            Endpoint sp = new Endpoint("https://query.wikidata.org/sparql";, false);

            String querySelect = 'PREFIX bd: <http://www.bigdata.com/rdf#>  \n'
                    + 'PREFIX wikibase: <http://wikiba.se/ontology#> \n'
                    + 'PREFIX wd: <http://www.wikidata.org/entity/>  \n'
                    + 'PREFIX wdt: <http://www.wikidata.org/prop/direct/> \n'
                    + 'PREFIX p: <http://www.wikidata.org/prop/> \n'
                    + 'PREFIX q: <http://www.wikidata.org/prop/qualifier/> \n'
                    + 'PREFIX v: <http://www.wikidata.org/prop/statement/> \n'
                    + ' \n'
                    + 'SELECT ?countryLabel (count(*) as ?count) WHERE { \n'
                    + '  ?city wdt:P31/wdt:P279* wd:Q515 .  # find instances of subclasses of city \n'
                    + '  ?city p:P6 ?statement .      # with a P6 (head of goverment) statement \n'
                    + '  ?statement v:P6 ?mayor .     # ... that has the value ?mayor \n'
                    + '  ?mayor wdt:P21 wd:Q6581072 .     # ... where the ?mayor has P21 (sex or gender) female \n'
                    + '  FILTER NOT EXISTS { ?statement q:P582 ?x }  # ... but the statement has no P582 (end date) qualifier \n'
                    + '  ?city wdt:P17 ?country   # Also find the country of the city \n'
                    + '  \n'
                    + '  # If available, get the "ru" label of the country, use "en" as fallback \n'
                    + '  SERVICE wikibase:label { \n'
                    + '    bd:serviceParam wikibase:language "en" . \n'
                    + '  } \n'
                    + ' } GROUP BY ?country ?countryLabel ORDER BY DESC(?count) LIMIT 100 \n';

            HashMap rs = sp.query(querySelect);
            printResult(rs,30);

        }catch(EndpointException eex) {
            System.out.println(eex);
            eex.printStackTrace();
        }
    }

    public static void printResult(HashMap rs , int size) {

      for (String variable : (ArrayList) rs.get("result").get("variables")) {
        System.out.print(String.format("%-"+size+"."+size+"s", variable ) + " | ");
      }
      System.out.print("\n");
      for (HashMap value : (ArrayList>) rs.get("result").get("rows")) {
        //System.out.print(value);
        /* for (String key : value.keySet()) {
         System.out.println(value.get(key));
         }*/
        for (String variable : (ArrayList) rs.get("result").get("variables")) {
          //System.out.println(value.get(variable));
          System.out.print(String.format("%-"+size+"."+size+"s", value.get(variable)) + " | ");
        }
        System.out.print("\n");
      }
    }
}
Project Github BorderCloud/SPARQL-JAVA
Very soon ! 
TODO