@prefix foaf: . @prefix ns1: . @prefix ns2: . ns1:mikko-koho foaf:made ns2:iswc-2018-industry-264 . ns1:eero-hyvonen foaf:made ns2:iswc-2018-industry-264 . ns1:esko-ikkala foaf:made ns2:iswc-2018-industry-264 . @prefix ns3: . @prefix ns4: . ns4:proceedings ns3:hasPart ns2:iswc-2018-industry-264 . @prefix rdf: . ns2:iswc-2018-industry-264 rdf:type ns3:InProceedings . @prefix rdfs: . ns2:iswc-2018-industry-264 rdfs:label "Maintaining the WarSampo Linked Data Cloud" . @prefix dc: . ns2:iswc-2018-industry-264 dc:creator ns1:mikko-koho , ns1:eero-hyvonen , ns1:esko-ikkala ; ns3:abstract "Plenty of data exists about the Second World War (WW2), but the data is scattered in various places, written in multiple languages, and collected in heterogeneous formats. This makes a promising use case for Linked Data, as various pieces of data can be connected and harmonized in a flexible way. WW2 information is of great interest not only to historians, but to potentially hundreds of millions of citizens globally whose relatives participated in the war, creating a global shared trauma.\n\nWarSampo provides a novel infrastructure for publishing WW2 data as Linked Open Data. The infrastructure is built to support integrating new datasets into WarSampo, by extending both the domain ontologies (DO) and the data graphs. Published in 2015, WarSampo is to our best knowledge the first large scale system for serving and publishing WW2 Linked Open Data (LOD) on the Semantic Web. It is a part of the global LOD cloud, and was awarded with the LODLAM Challenge Open Data Prize in 2017.\n\nWe discuss lessons learned from two case studies, in which the Linked Data Cloud was first extended by a dataset of hundreds of war cemeteries and thousands of photographs of them, and then by another dataset of 4450 Finnish prisoners of war. " . @prefix ns8: . ns2:iswc-2018-industry-264 ns3:hasAuthorList ns8:iswc-2018-industry-264 ; ns3:isPartOf ns4:proceedings . @prefix xsd: . ns2:iswc-2018-industry-264 ns3:keyword "Ontology Evolution"^^xsd:string , "Linked Data Cloud"^^xsd:string , "Web of Data"^^xsd:string , "War history"^^xsd:string , "Cultural Heritage"^^xsd:string , "Semantic Web"^^xsd:string , "Change Propagation"^^xsd:string , "World War II"^^xsd:string , "Digital Humanities"^^xsd:string , "CIDOC CRM"^^xsd:string , "Named Entity Linking"^^xsd:string , "Linked Open Data"^^xsd:string , "Linked Data"^^xsd:string ; ns3:title "Maintaining the WarSampo Linked Data Cloud" . @prefix ns10: . ns10:iswc2018-author-eero-hyvonen-iswc-2018-industry-264 ns3:withDocument ns2:iswc-2018-industry-264 . ns10:iswc2018-author-esko-ikkala-iswc-2018-industry-264 ns3:withDocument ns2:iswc-2018-industry-264 . ns10:iswc2018-author-mikko-koho-iswc-2018-industry-264 ns3:withDocument ns2:iswc-2018-industry-264 .