WarSampo data service and semantic portal for publishing linked open data about the second world war history

Eero Hyvönen*, Erkki Heino, Petri Leskinen, Esko Ikkala, Mikko Koho, Claire Tamper, Jouni Tuominen, Eetu Mäkelä

*Corresponding author for this work

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

39 Citations (Scopus)
53 Downloads (Pure)


This paper presents the WarSampo system for publishing collections of heterogeneous, distributed data about the Second World War on the Semantic Web. WarSampo is based on harmonizing massive datasets using event-based modeling, which makes it possible to enrich datasets semantically with each others’ contents. WarSampo has two components: First, a Linked Open Data (LOD) service WarSampo Data for Digital Humanities (DH) research and for creating applications related to war history. Second, a semantic WarSampo Portal has been created to test and demonstrate the usability of the data service. The WarSampo Portal allows both historians and laymen to study war history and destinies of their family members in the war from different interlinked perspectives. Published in November 2015, the WarSampo Portal had some 20,000 distinct visitors during the first three days, showing that the public has a great interest in this kind of applications.

Original languageEnglish
Title of host publicationThe Semantic Web: Latest Advances and New Domains - 13th International Conference, ESWC 2016, Proceedings
EditorsHarald Sack, Eva Blomqvist, Mathieu d'Aquin , Chiara Ghidini, Simone Paolo Ponzetto, Christoph Lange
Number of pages16
ISBN (Electronic)978-3-319-34129-3
Publication statusPublished - May 2016
MoE publication typeA4 Article in a conference publication
EventInternational Semantic Web Conference - Heraklion, Greece
Duration: 29 May 20162 Jun 2016
Conference number: 13

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
ISSN (Print)03029743
ISSN (Electronic)16113349


ConferenceInternational Semantic Web Conference
Abbreviated titleISWC


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