757 Matching Annotations
  1. Apr 2024
  2. Mar 2024
  3. Nov 2023
  4. Oct 2023
    1. Federated SPARQL Query, incorporating data from both DBpedia & Wikidata

      ```sparql PREFIX wd: http://www.wikidata.org/entity/ PREFIX wdt: http://www.wikidata.org/prop/direct/ PREFIX wikibase: http://wikiba.se/ontology# PREFIX p: http://www.wikidata.org/prop/ PREFIX ps: http://www.wikidata.org/prop/statement/ PREFIX pq: http://www.wikidata.org/prop/qualifier/ PREFIX bd: http://www.bigdata.com/rdf# PREFIX owl: http://www.w3.org/2002/07/owl# PREFIX rdfs: http://www.w3.org/2000/01/rdf-schema# PREFIX foaf: http://xmlns.com/foaf/0.1/ PREFIX dct: http://purl.org/dc/terms/SELECT DISTINCT ?dbpediaID AS ?href xsd:string(?label) AS ?name ?description ?subjectText ?item AS ?wikidataID ?dbpediaID ?image ?picture WHERE { SERVICE http://query.wikidata.org/sparql { SELECT DISTINCT ?item ?itemLabel ?numero ( SAMPLE(?pic) AS ?picture ) WHERE { ?item p:P528 ?catalogStatement . ?catalogStatement ps:P528 ?numero . ?catalogStatement pq:P972 wd:Q14530 . OPTIONAL { ?item wdt:P18 ?pic } . SERVICE wikibase:label { bd:serviceParam wikibase:language "en" } } GROUP BY ?item ?itemLabel ?numero ORDER BY ?numero }

      SERVICE <http://dbpedia.org/sparql>
        { 
          SELECT ?item
                 ?dbpediaID
                 ?label
                 ?image
                 ?description
                 ?subjectText
          FROM  <http://dbpedia.org> 
          WHERE
            {
              ?dbpediaID  owl:sameAs      ?item ; 
                          rdfs:label      ?label ; 
                          foaf:depiction  ?image ;
                          rdfs:comment    ?description ;
                          dct:subject
                            [ rdfs:label  ?subjectText ] .
              FILTER ( LANG(?label) = "en" ) 
              FILTER ( LANG(?description) = "en" ) 
            }
        }
      

      } ```

  5. Sep 2023
  6. citation-js.toolforge.org citation-js.toolforge.org
    1. Descripción: Esta aplicación permite generar referencias bibliográficas utilizando literatura de Wikidata

      Formato para poner las citas https://citation-js.toolforge.org/api/v1/export/Q30000000,Q30000002/bibliography?format=html

      Reses Sociales https://mstdn.social/@citationjs@fosstodon.org

  7. Aug 2023
  8. Jul 2023
    1. Aktive Kompetenz

      Offene Metadaten für (eigene) Publikationen selbst zu produzieren bzw. zu pflegen und in der eigenen Wisskomm zu verwenden (z.B. für Nachrichten mit Thumbnails in Social Medias) ist m.E. eine Aktivität und Strategie, die am Rande hier mit Erwähnung finden könnte, vgl. https://redaktionsblog.hypotheses.org/5219 ++ selbsr erschleßen mit https://scholia.toolforge.org/doi/ + 10.17175/wp_2023b führt zu https://scholia.toolforge.org/doi/10.17175/wp_2023b, vgl. das Workshopbeispiel: https://de.wikiversity.org/wiki/Open_Science_Festival/Forschen_im_Wikiversum_(2023)#Publizieren_und_Erschlie%C3%9Fen

  9. Jun 2023
    1. ```sparql PREFIX pm20: http://purl.org/pressemappe20/folder/ PREFIX p: http://www.wikidata.org/prop/ PREFIX pq: http://www.wikidata.org/prop/qualifier/ PREFIX skos: http://www.w3.org/2004/02/skos/core# PREFIX wdt: http://www.wikidata.org/prop/direct/ PREFIX wd: http://www.wikidata.org/entity/

      SELECT ?wd ?skosRelation ?pm20

      construct {

      ?wd ?skosRelation ?pm20 .

      }

      where { service https://query.wikidata.org/sparql { # wd items with PM20 ID ?wd wdt:P4293 ?pm20Id . filter(isLiteral(?pm20Id)) # # mapping relation optional { ?wd p:P4293/pq:P4390 ?relation . # URL of the equivalent skos property ?relation wdt:P2699 ?skosRelation1 . } } # bind as URIs bind(uri(concat('http://purl.org/pressemappe20/folder/', ?pm20Id)) as ?pm20) bind(if(bound(?skosRelation1), ?skosRelation1, uri('http://www.w3.org/2004/02/skos/core#exactMatch')) as ?skosRelation) } ```

  10. May 2023
    1. ```php

      $record) { if ($name<>"count" and $name<>"specials") { foreach ($record["site"] as $sitelink) { $site[$sitelink["dbname"]]=$sitelink["url"]; } } if ($name==="specials") { foreach ($record as $sitelink) { $site[$sitelink["dbname"]]=$sitelink["url"]; } } } /* Open files */ $fp = fopen('data/'.$entity_proc.'.ttl', 'w'); fwrite($fp, "@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .\n"); fwrite($fp, "@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .\n"); fwrite($fp, "@prefix skos: <http://www.w3.org/2004/02/skos/core#> .\n"); fwrite($fp, "@prefix wd: <http://www.wikidata.org/entity/> .\n"); fwrite($fp, "@prefix wdt: <http://www.wikidata.org/prop/direct/> .\n"); fwrite($fp,"\n"); fwrite($fp,"<http://www.wikidata.org/categories> rdf:type skos:ConceptScheme ;\n"); fwrite($fp," skos:prefLabel \"Wikidata categories\"@en .\n\n"); // echo $list_entities."\n"; $url = "https://www.wikidata.org/w/api.php?action=wbgetentities&ids=".$entity_proc."&props=labels|aliases|sitelinks&format=php&utf8="; $a = unserialize(file_get_contents($url)); foreach ($a["entities"] as $entity=>$data_entity) { fwrite($fp,"wd:".$entity." rdf:type skos:Concept ;\n"); fwrite($fp," skos:inScheme <http://www.wikidata.org/categories> "); if (isset($data_entity["labels"])) { foreach ($data_entity["labels"] as $label) { fwrite($fp,";\n skos:prefLabel \"".$label["value"]."\"@".$label["language"]." "); } } if (isset($data_entity["aliases"])) { foreach ($data_entity["aliases"] as $item) { foreach ($item as $label) { fwrite($fp,";\n skos:altLabel> \"".$label["value"]."\"@".$label["language"]." "); } } } foreach ($data_entity["sitelinks"] as $item) { if (in_array($item["site"],$array_sources)) { /* GET BROADER CATEGORIES */ $repeat_query=true; $cmcontinue=""; while ($repeat_query==true) { $repeat_query = false; $url_wiki = $site[$item["site"]]."/w/api.php?action=query&generator=categories&titles=".urlencode($item["title"])."&prop=pageprops|categoryinfo&format=php&utf8=".$cmcontinue; $b = unserialize(file_get_contents($url_wiki)); if (isset($b["continue"]["cmcontinue"])) { $repeat_query = true; $cmcontinue = $b["continue"]["cmcontinue"]; } if (isset($b["query"]["pages"])) { foreach ($b["query"]["pages"] as $broadcat) { if (isset($broadcat["pageprops"]["wikibase_item"])) { if (!isset($broader[$broadcat["pageprops"]["wikibase_item"]])) {$broader[$broadcat["pageprops"]["wikibase_item"]]=$broadcat["title"];} // fwrite($fp,"<http://www.wikidata.org/entity/".$entity_proc."> <http://www.w3.org/2004/02/skos/core#broader> <http://www.wikidata.org/entity/".$broadcat["pageprops"]["wikibase_item"]."> <http://www.wikidata.org/categories/".$item["site"]."> .\n"); } } } } /* GET NARROWER CATEGORIES */ $repeat_query=true; $cmcontinue=""; while ($repeat_query==true) { $repeat_query = false; $url_wiki = $site[$item["site"]]."/w/api.php?action=query&generator=categorymembers&gcmtitle=".urlencode($item["title"])."&gcmtype=subcat&prop=pageprops|categoryinfo&format=php&utf8=".$cmcontinue; $b = unserialize(file_get_contents($url_wiki)); if (isset($b["continue"]["cmcontinue"])) { $repeat_query = true; $cmcontinue = $b["continue"]["cmcontinue"]; } if (isset($b["query"]["pages"])) { foreach ($b["query"]["pages"] as $narrowcat) { if (isset($narrowcat["pageprops"]["wikibase_item"])) { if (!isset($narrower[$narrowcat["pageprops"]["wikibase_item"]]) or $item["site"]=="enwiki") {$narrower[$narrowcat["pageprops"]["wikibase_item"]]=$narrowcat["title"];} // fwrite($fp,"<http://www.wikidata.org/entity/".$entity_proc."> <http://www.w3.org/2004/02/skos/core#narrower> <http://www.wikidata.org/entity/".$narrowcat["pageprops"]["wikibase_item"]."> <http://www.wikidata.org/categories/".$item["site"]."> .\n"); } } } } } } } $prevalue=""; foreach ($broader as $target=>$value) { fwrite($fp,";".$prevalue."\n skos:broader wd:".$target); $prevalue=" # ".$value; } if ($prevalue!=="") {fwrite($fp,$prevalue);} $prevalue=""; foreach ($narrower as $target=>$value) { fwrite($fp,";".$prevalue."\n skos:narrower wd:".$target); $prevalue=" # ".$value; } if ($prevalue!=="") {fwrite($fp,$prevalue);} fwrite($fp,".\n\n"); fclose($fp); ?>

      ```

    1. sparql SELECT ?type (COUNT(DISTINCT ?oeuvre) AS ?c) WHERE { VALUES ?type { wd:Q838948 } ?oeuvre wdt:P31 ?type. { ?oeuvre ?link ?museum. } union { ?museum ?link ?oeuvre. } ?museum wdt:P31 wd:Q33506. } GROUP BY ?type ORDER BY DESC (?c)

  11. Apr 2023
    1. EsposibletambiénutilizarWikidataparahacermapeosycartografíadigitaldebibliotecasodeotrasinstitucioneseducativasyculturales.ObregónSierra(2022)hautilizadoWikidata,atravésdeOpenRefine,Mix’n’matchyQuickStatements,parainsertar7861bibliotecasdeEspaña,ampliarloscampos,propiedadesydatosfaltantes,ytambiéndemuestracómoreutilizarestecontenidoenWikipedia.
    2. Asimismo,Wikidataesunacomunidadparticipativa,conusuariosyusuariasactivasdetodoelmundo,quegeneranproyectosdeinvestigaciónyconectividadentreconocimientosdiversos

      Me gusta que presenta a Wikidata como una herramienta, una ontología y una comunidad.

  12. Feb 2023
  13. Jan 2023
  14. Dec 2022
  15. Nov 2022
  16. Oct 2022