Maintaining a Linked Data Cloud and Data Service for Second World War History

Mikko Koho*, Esko Ikkala, Erkki Heino, Eero Hyvönen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2 Citations (Scopus)


One of the great promises of Linked Data is to provide a shared data infrastructure into which new data can be imported and aligned with, forming a sustainable, ever growing Linked Data Cloud (LDC). This paper studies and evaluates this idea in the context of the WarSampo LDC that provides a data infrastructure for Second World War related ontologies and data in Finland, including several mutually linked graphs, totaling ca 12 million triples. Two data integration case studies are presented, where the original WarSampo LDC and the related semantic portal were first extended by a dataset of hundreds of war cemeteries and thousands of photographs of them, and then by another dataset of over 4450 Finnish prisoners of war. As a conclusion, lessons learned are explicated, based on hands-on experience in maintaining the WarSampo LDC in a production environment.

Original languageEnglish
Title of host publicationDigital Heritage. Progress in Cultural Heritage
Subtitle of host publicationDocumentation, Preservation, and Protection - 7th International Conference, EuroMed 2018, Proceedings
EditorsEleanor Fink, Raffaella Brumana, Manolis Wallace, Anastasios Doulamis, Petros Patias, Marinos Ioannides, Joao Martins
Number of pages12
Publication statusPublished - 1 Jan 2018
MoE publication typeA4 Article in a conference publication
EventInternational Conference on Digital Heritage - Nicosia, Cyprus
Duration: 29 Oct 20183 Nov 2018
Conference number: 7

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume11196 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


ConferenceInternational Conference on Digital Heritage
Abbreviated titleEuroMed
Internet address


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