Arts movement
SPARQL and wikidata
So the pursuit was rather simple: to find all information about Art movements on wikipedia and visualise it, from the simple timeline visualisation to the network of related art movements and artists.
My colleagues on linked data and semantic web introduced me to the wonderful resources of Wikidata, dbpedia and the new query language SPARQL.
With Wikidata, the pursuit was rather simple, it is very similar to an already existing Wikidata project Art movements, and related projects of Cultural movements.
Useful properties from Art movements are:
-> art movement
. If you would like to use another term, feel free (see the rough distinction outlined at Wikidata:WikiProject Visual arts/Item structure)
. Optional. Used for the art discipline in which the art movement manifests itself (art of painting, art of sculpture, …)
, if the art movement is/was typical for a specific country.
, inf the art movement is/was typical for a specific region, city or other place – example: Utrecht Caravaggism
. For the date, year, decade or century in which the movement began.
. For the date, year, decade of century when the movement ended.
for the art movement itself
– can be other art movements, people, specific artworks…
– used to indicate the person who has coined (named) this art movement for the first time.
Which resulted as the following codes on Wikidata Query
PREFIX wdno: <http://www.wikidata.org/prop/novalue/>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
SELECT ?art ?artLabel ?start ?end ?end2 ?categoryLabel ?countryLabel ?sameLabel ?inventorLabel ?fieldLabel ?founderLabel ?influencebyLabel ?followbyLabel WHERE {
?art wdt:P31 wd:Q968159 .
OPTIONAL {?art wdt:P571 ?start .}
OPTIONAL {?art wdt:P576 ?end .}
OPTIONAL {?art wdt:P582 ?end2 .}
OPTIONAL {?art wdt:361 ?category .}
OPTIONAL {?art wdt:P17 ?country .}
OPTIONAL {?art wdt:P101 ?field .}
OPTIONAL {?art wdt:P17 ?country .}
OPTIONAL {?art wdt:P460 ?same .}
OPTIONAL {?art wdt:P61 ?inventor .}
OPTIONAL {?art wdt:P17 ?founder .}
OPTIONAL {?art wdt:P737 ?influenceby . }
OPTIONAL {?art wdt:P156 ?followby . }
SERVICE wikibase:label { bd:serviceParam wikibase:language “[AUTO_LANGUAGE],en”. }
}
The data is of course needs to be supplemented by dbpedia data.
SPARQL and dbpedia
Continuing on the pursuit of data and anything artistic, query on dbpedia is next (it should have been first).
The paper DBpedia – A Large-scale, Multilingual Knowledge Base Extracted from Wikipedia by Lehmann et al in 2012 is a very good over view of the structure of the site and the related query process.
The Linking Open Data cloud diagram shows the centrality of dbpedia
The endpoint is http://dbpedia.org/sparql and http://legacy.yasgui.org/
PREFIX owl: <http://www.w3.org/2002/07/owl#>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX dc: <http://purl.org/dc/elements/1.1/>
PREFIX : <http://dbpedia.org/resource/>
PREFIX dbpedia2: <http://dbpedia.org/property/>
PREFIX dbpedia: <http://dbpedia.org/>
PREFIX skos: <http://www.w3.org/2004/02/skos/core#>
SELECT ?m ?movementName ?comment ?wikidata ?famousName ?peopleName ?influenceName
WHERE {
?m dct:subject <http://dbpedia.org/resource/Category:Art_movements> ;
rdfs:label ?movementName ;
rdfs:comment ?comment ;
(owl:sameAs|^owl:sameAs) ?wikidata ;
^dbo:knownFor/rdfs:label ?famousName ;
^dbo:movement/rdfs:label ?peopleName ;
^dbo:influencedBy/rdfs:label ?influenceName .
FILTER regex(str(?wikidata), “wikidata.org”)
FILTER(LANG(?movementName) = “en”)
FILTER(LANG(?comment) = “en”)
FILTER(LANG(?famousName) = “en”) FILTER(LANG(?peopleName) = “en”) FILTER(LANG(?influenceName) = “en”)
}
ORDER BY DESC(?movementName)
LIMIT 100
#OFFSET 10