@prefix rdf: . @prefix xsd: . @prefix dcterms: . @prefix skos: . @prefix rdfs: . @prefix api: . @prefix foaf: . skos:narrower . a rdfs:Resource , skos:Concept ; dcterms:contributor ; dcterms:created "2018-01-26T16:22:15.000Z"^^xsd:dateTime ; dcterms:creator ; dcterms:modified "2020-11-03T21:16:32.263Z"^^xsd:dateTime ; skos:broader ; skos:definition "The process of converting crude observational data into usable information for scientific interpretation, by correcting, rearranging, ordering, and simplifying."@en ; skos:prefLabel "Astronomy data reduction"@en . a api:ItemEndpoint , api:Page ; api:definition ; api:extendedMetadataVersion ; foaf:primaryTopic .