A set of SPARQL examples that are used in different TGX resources
License: https://www.gnu.org/licenses/gpl-3.0
Uses method in: https://github.com/WDscholia/scholia/tree/master/scholia/app/templates/event-series_recent-publications.sparql
Event-series aspect: recent publications
PREFIX bd: <http://www.bigdata.com/rdf#>
PREFIX p: <http://www.wikidata.org/prop/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
PREFIX target: <http://www.wikidata.org/entity/Q47501052>
SELECT
?publication_date
?work ?workLabel (CONCAT("/work/", SUBSTR(STR(?work), 32)) AS ?workUrl)
?authors ?authorsUrl
WITH {
SELECT
DISTINCT ?person
WHERE {
?event wdt:P179 | wdt:P31 target: .
{
# speaker
?event wdt:P823 ?person .
}
UNION
{
# organizer
?event wdt:P664 ?person .
}
UNION
{
# participant
?person wdt:P1344 | ^wdt:P710 ?event .
}
UNION
{
# author
?person ^wdt:P50 / wdt:P1433 / wdt:P4745 ?event .
}
}
} AS %people
WITH {
SELECT
(xsd:date(MAX(?publication_datetime)) AS ?publication_date)
?work
(GROUP_CONCAT(DISTINCT ?person_label; separator=", ") AS ?authors)
(CONCAT("../authors/", GROUP_CONCAT(DISTINCT SUBSTR(STR(?person), 32); separator=",")) AS ?authorsUrl)
WHERE {
INCLUDE %people .
?work wdt:P50 ?person ; wdt:P577 ?publication_datetime .
?person rdfs:label ?person_label . FILTER(LANG(?person_label) = 'en')
}
GROUP BY ?work
} AS %results
WHERE {
INCLUDE %results
SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],mul,en,da,de,es,fr,jp,no,ru,sv,zh". }
}
ORDER BY DESC(?publication_date)
LIMIT 500
graph TD