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

Reuse these data in your code

Query, endpoint and code for reusing the same data
https://query.wikidata.org/sparql
PREFIX bd: <http://www.bigdata.com/rdf#> 
PREFIX p: <http://www.wikidata.org/prop/> 
PREFIX pq: <http://www.wikidata.org/prop/qualifier/> 
PREFIX ps: <http://www.wikidata.org/prop/statement/> 
PREFIX wd: <http://www.wikidata.org/entity/> 
PREFIX wdt: <http://www.wikidata.org/prop/direct/> 
PREFIX wikibase: <http://wikiba.se/ontology#> 


#defaultView:Timeline
SELECT DISTINCT ?item ?itemLabel ?when (YEAR(?when) as ?date) (SAMPLE(?pic) as ?picture)
WHERE {
  ?item p:P166 ?awardStat . # … with an awarded(P166) statement
  ?awardStat ps:P166 wd:Q44585 . # … that has the value Nobel Prize in Chemistry (Q35637)
  ?awardStat pq:P585 ?when . # when did he receive the Nobel prize
 
SERVICE wikibase:label { bd:serviceParam wikibase:language "en" . }
OPTIONAL { ?item wdt:P18 ?pic }
}
GROUP BY ?item ?itemLabel ?when  ?date ?pic
ORDER BY DESC(?date)
Howto write a query SPARQL? (in French)
{{#sparql:PREFIX bd: <http://www.bigdata.com/rdf#> 
PREFIX p: <http://www.wikidata.org/prop/> 
PREFIX pq: <http://www.wikidata.org/prop/qualifier/> 
PREFIX ps: <http://www.wikidata.org/prop/statement/> 
PREFIX wd: <http://www.wikidata.org/entity/> 
PREFIX wdt: <http://www.wikidata.org/prop/direct/> 
PREFIX wikibase: <http://wikiba.se/ontology#> 


#defaultView:Timeline
SELECT DISTINCT ?item ?itemLabel ?when (YEAR(?when) as ?date) (SAMPLE(?pic) as ?picture)
WHERE {
  ?item p:P166 ?awardStat . # … with an awarded(P166) statement
  ?awardStat ps:P166 wd:Q44585 . # … that has the value Nobel Prize in Chemistry (Q35637)
  ?awardStat pq:P585 ?when . # when did he receive the Nobel prize
 
SERVICE wikibase:label { bd:serviceParam wikibase:language "en" . }
OPTIONAL { ?item wdt:P18 ?pic }
}
GROUP BY ?item ?itemLabel ?when  ?date ?pic
ORDER BY DESC(?date)
| endpoint = https://query.wikidata.org/sparql
| chart=bordercloud.visualization.DataTable
| options=colstyle=col4_img_max-width:250px
| log=2
}}
Howto install LinkedWiki in my wiki? Howto insert this graph in my wiki?
Test this script in a new tab.
<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 p: <http://www.wikidata.org/prop/> \n\
PREFIX pq: <http://www.wikidata.org/prop/qualifier/> \n\
PREFIX ps: <http://www.wikidata.org/prop/statement/> \n\
PREFIX wd: <http://www.wikidata.org/entity/> \n\
PREFIX wdt: <http://www.wikidata.org/prop/direct/> \n\
PREFIX wikibase: <http://wikiba.se/ontology#> \n\
\n\
\n\
#defaultView:Timeline\n\
SELECT DISTINCT ?item ?itemLabel ?when (YEAR(?when) as ?date) (SAMPLE(?pic) as ?picture)\n\
WHERE {\n\
  ?item p:P166 ?awardStat . # … with an awarded(P166) statement\n\
  ?awardStat ps:P166 wd:Q44585 . # … that has the value Nobel Prize in Chemistry (Q35637)\n\
  ?awardStat pq:P585 ?when . # when did he receive the Nobel prize\n\
 \n\
SERVICE wikibase:label { bd:serviceParam wikibase:language \"en\" . }\n\
OPTIONAL { ?item wdt:P18 ?pic }\n\
}\n\
GROUP BY ?item ?itemLabel ?when  ?date ?pic\n\
ORDER BY DESC(?date)"

   // $('#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>
Test this script in a new tab (Careful, several charts need a API key).
Howto insert this graph in my html page?
<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 p: &lt;http://www.wikidata.org/prop/&gt; 
PREFIX pq: &lt;http://www.wikidata.org/prop/qualifier/&gt; 
PREFIX ps: &lt;http://www.wikidata.org/prop/statement/&gt; 
PREFIX wd: &lt;http://www.wikidata.org/entity/&gt; 
PREFIX wdt: &lt;http://www.wikidata.org/prop/direct/&gt; 
PREFIX wikibase: &lt;http://wikiba.se/ontology#&gt; 


#defaultView:Timeline
SELECT DISTINCT ?item ?itemLabel ?when (YEAR(?when) as ?date) (SAMPLE(?pic) as ?picture)
WHERE {
  ?item p:P166 ?awardStat . # &hellip; with an awarded(P166) statement
  ?awardStat ps:P166 wd:Q44585 . # &hellip; that has the value Nobel Prize in Chemistry (Q35637)
  ?awardStat pq:P585 ?when . # when did he receive the Nobel prize
 
SERVICE wikibase:label { bd:serviceParam wikibase:language &quot;en&quot; . }
OPTIONAL { ?item wdt:P18 ?pic }
}
GROUP BY ?item ?itemLabel ?when  ?date ?pic
ORDER BY DESC(?date)"
    data-sgvizler-chart='bordercloud.visualization.DataTable'
    data-sgvizler-chart-options='colstyle=col4_img_max-width:250px'
    data-sgvizler-endpoint_output_format='json'
    data-sgvizler-log='2'
    style='width:100%; height:auto;'  />

<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 p: <http://www.wikidata.org/prop/> 
PREFIX pq: <http://www.wikidata.org/prop/qualifier/> 
PREFIX ps: <http://www.wikidata.org/prop/statement/> 
PREFIX wd: <http://www.wikidata.org/entity/> 
PREFIX wdt: <http://www.wikidata.org/prop/direct/> 
PREFIX wikibase: <http://wikiba.se/ontology#> 


#defaultView:Timeline
SELECT DISTINCT ?item ?itemLabel ?when (YEAR(?when) as ?date) (SAMPLE(?pic) as ?picture)
WHERE {
  ?item p:P166 ?awardStat . # … with an awarded(P166) statement
  ?awardStat ps:P166 wd:Q44585 . # … that has the value Nobel Prize in Chemistry (Q35637)
  ?awardStat pq:P585 ?when . # when did he receive the Nobel prize
 
SERVICE wikibase:label { bd:serviceParam wikibase:language "en" . }
OPTIONAL { ?item wdt:P18 ?pic }
}
GROUP BY ?item ?itemLabel ?when  ?date ?pic
ORDER BY DESC(?date)""")
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 p: <http://www.wikidata.org/prop/> 
PREFIX pq: <http://www.wikidata.org/prop/qualifier/> 
PREFIX ps: <http://www.wikidata.org/prop/statement/> 
PREFIX wd: <http://www.wikidata.org/entity/> 
PREFIX wdt: <http://www.wikidata.org/prop/direct/> 
PREFIX wikibase: <http://wikiba.se/ontology#> 


#defaultView:Timeline
SELECT DISTINCT ?item ?itemLabel ?when (YEAR(?when) as ?date) (SAMPLE(?pic) as ?picture)
WHERE {
  ?item p:P166 ?awardStat . # … with an awarded(P166) statement
  ?awardStat ps:P166 wd:Q44585 . # … that has the value Nobel Prize in Chemistry (Q35637)
  ?awardStat pq:P585 ?when . # when did he receive the Nobel prize
 
SERVICE wikibase:label { bd:serviceParam wikibase:language "en" . }
OPTIONAL { ?item wdt:P18 ?pic }
}
GROUP BY ?item ?itemLabel ?when  ?date ?pic
ORDER BY DESC(?date)"
# 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 p: <http://www.wikidata.org/prop/> 
PREFIX pq: <http://www.wikidata.org/prop/qualifier/> 
PREFIX ps: <http://www.wikidata.org/prop/statement/> 
PREFIX wd: <http://www.wikidata.org/entity/> 
PREFIX wdt: <http://www.wikidata.org/prop/direct/> 
PREFIX wikibase: <http://wikiba.se/ontology#> 


#defaultView:Timeline
SELECT DISTINCT ?item ?itemLabel ?when (YEAR(?when) as ?date) (SAMPLE(?pic) as ?picture)
WHERE {
  ?item p:P166 ?awardStat . # … with an awarded(P166) statement
  ?awardStat ps:P166 wd:Q44585 . # … that has the value Nobel Prize in Chemistry (Q35637)
  ?awardStat pq:P585 ?when . # when did he receive the Nobel prize
 
SERVICE wikibase:label { bd:serviceParam wikibase:language "en" . }
OPTIONAL { ?item wdt:P18 ?pic }
}
GROUP BY ?item ?itemLabel ?when  ?date ?pic
ORDER BY DESC(?date)
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 p: <http://www.wikidata.org/prop/>  '...
'PREFIX pq: <http://www.wikidata.org/prop/qualifier/>  '...
'PREFIX ps: <http://www.wikidata.org/prop/statement/>  '...
'PREFIX wd: <http://www.wikidata.org/entity/>  '...
'PREFIX wdt: <http://www.wikidata.org/prop/direct/>  '...
'PREFIX wikibase: <http://wikiba.se/ontology#>  '...
' '...
' '...
'#defaultView:Timeline '...
'SELECT DISTINCT ?item ?itemLabel ?when (YEAR(?when) as ?date) (SAMPLE(?pic) as ?picture) '...
'WHERE { '...
'  ?item p:P166 ?awardStat . # … with an awarded(P166) statement '...
'  ?awardStat ps:P166 wd:Q44585 . # … that has the value Nobel Prize in Chemistry (Q35637) '...
'  ?awardStat pq:P585 ?when . # when did he receive the Nobel prize '...
'  '...
'SERVICE wikibase:label { bd:serviceParam wikibase:language "en" . } '...
'OPTIONAL { ?item wdt:P18 ?pic } '...
'} '...
'GROUP BY ?item ?itemLabel ?when  ?date ?pic '...
'ORDER BY DESC(?date) '];

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 p: <http://www.wikidata.org/prop/> 
PREFIX pq: <http://www.wikidata.org/prop/qualifier/> 
PREFIX ps: <http://www.wikidata.org/prop/statement/> 
PREFIX wd: <http://www.wikidata.org/entity/> 
PREFIX wdt: <http://www.wikidata.org/prop/direct/> 
PREFIX wikibase: <http://wikiba.se/ontology#> 


#defaultView:Timeline
SELECT DISTINCT ?item ?itemLabel ?when (YEAR(?when) as ?date) (SAMPLE(?pic) as ?picture)
WHERE {
  ?item p:P166 ?awardStat . # … with an awarded(P166) statement
  ?awardStat ps:P166 wd:Q44585 . # … that has the value Nobel Prize in Chemistry (Q35637)
  ?awardStat pq:P585 ?when . # when did he receive the Nobel prize
 
SERVICE wikibase:label { bd:serviceParam wikibase:language "en" . }
OPTIONAL { ?item wdt:P18 ?pic }
}
GROUP BY ?item ?itemLabel ?when  ?date ?pic
ORDER BY DESC(?date)EOD;
$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 p: <http://www.wikidata.org/prop/>  \n'
                    + 'PREFIX pq: <http://www.wikidata.org/prop/qualifier/>  \n'
                    + 'PREFIX ps: <http://www.wikidata.org/prop/statement/>  \n'
                    + 'PREFIX wd: <http://www.wikidata.org/entity/>  \n'
                    + 'PREFIX wdt: <http://www.wikidata.org/prop/direct/>  \n'
                    + 'PREFIX wikibase: <http://wikiba.se/ontology#>  \n'
                    + ' \n'
                    + ' \n'
                    + '#defaultView:Timeline \n'
                    + 'SELECT DISTINCT ?item ?itemLabel ?when (YEAR(?when) as ?date) (SAMPLE(?pic) as ?picture) \n'
                    + 'WHERE { \n'
                    + '  ?item p:P166 ?awardStat . # … with an awarded(P166) statement \n'
                    + '  ?awardStat ps:P166 wd:Q44585 . # … that has the value Nobel Prize in Chemistry (Q35637) \n'
                    + '  ?awardStat pq:P585 ?when . # when did he receive the Nobel prize \n'
                    + '  \n'
                    + 'SERVICE wikibase:label { bd:serviceParam wikibase:language "en" . } \n'
                    + 'OPTIONAL { ?item wdt:P18 ?pic } \n'
                    + '} \n'
                    + 'GROUP BY ?item ?itemLabel ?when  ?date ?pic \n'
                    + 'ORDER BY DESC(?date) \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