Sampo Model, Data Services, and Series of Semantic Portals

This page presents the ”Sampo” model, series of Linked Open Data services, and semantic portals (Hyvönen, 2022), based on six principles:

Support collaborative data creation and publishing.
Use a shared open ontology infrastructure.
Support data analysis and knowledge discovery in addition to data exploration.
Provide multiple perspectives to the same data.
Standardize portal usage by a simple filter-analyze two-step cycle.
Make clear distinction between the Linked Open Data service and the user interface (UI).

Sampo portal data services are provided by the Linked Data Finland platform. For the user interfaces, the Sampo-UI framework has been used since 2019.

The Sampo portals listed below in the table have had millions of end users on the Web in total, suggesting feasibility and sustainability of the approach that has evolved gradually since 2002. The first video on the left, produced by the Research Council of Finland (Suomen Akatemia), introduces our work on Sampo portals. The second video in the middle (in English) presents the vision and results of our research group in Semantic Web and Digital Humanities research from 2001 to 2026. The third video on the right (in Finnish with English slides) is the emeritus lecture of Prof. Eero Hyvönen. It presents our way towards a Web of Wisdom starting from the history of AI, Semantic Web, and SeCo research in Finland, beginning from organizing the First Finnish AI Symposium in 1984 to the Semantic Web Kick-of in Finland seminar in 2001, and to publication of the system "SampoSampo - Connecting Everything to Everything Else" in 2026.

The Sampo model with the underlying Linked Open Data infrastructure in Finland (Hyvönen, 2022) are explained in the keynote presentation at the DCMI 2021 conference below:

Paradigm Shift in Publishing Cultural Heritage Contents

The Sampo model, data services, and portals aim at making a paradigm change in publishing and using Cultural Heritage content on the Web (Hyvönen, 2020). The contents are not only published as Linked Data but also integrated seamlessly with intelligent tools for data analysis. In our vision, AI should not only help the user in solving research problems, but also in finding new ones using Creative AI methods. We also focus on white box Explainable AI, which is important in humanities research. In Douglas Adam’s novel “Hitchhiker’s Guide to the Galaxy”, the computer was asked “What is the meaning of life”. The answer “42” may be right, but a researcher in humanities would also like to know “why”.

Sampo Series

The Sampo series of data services and semantic portals is listed below.

Table: Published and forth-coming semantic portals that have been implemented using the Sampo model adn Sampo-UI or its predecessors. The list includes applications created by the SeCo group and external groups in other universities and organizations. (updated 2026-06-12)

Portal project homepage	Public URL	Publication year	Domain	Unique users	Knowledge graph(s) triple count or size	Faceted search engine	User interface framework	Primary data owner
Internal portals
1. MuseumFinland	museosuomi.fi	2004	Museum collections	39 000	210 986	OntoViews	Apache Cocoon	National Museum of Finland
2. CultureSampo	kulttuurisampo.fi	2008	GLAM collections	107 000	11 400 000	Custom	Tapestry	Over 20 Finnish Memory Organizations
3. HealthFinland	-	2008	Health information	Unknown	6 000 documents	Custom	Tapestry	Finnish institute for health and welfare
4. TravelSampo	-	2011	Cultural travel	Unknown	17 000 000 places	Custom	Drupal and jQuery	Several Finnish Memory Organizations
5. WarSampo	sotasampo.fi/en	2015	Military history	over 1 000 000	14 322 426	SPARQL Faceter	AngularJS	National Archives of Finland
6. Norssi alumni on the Semantic Web	Norssit.fi	2017	Historical person registries	?	470 000	SPARQL Faceter	AngularJS	Vanhat Norssit ry
7. U. S. Congress Prosopographer	Demonstrator	2017	Historical person registries	?	828 000	SPARQL Faceter	AngularJS	https://github.com/unitedstates/congress-legislators
8. BiographySampo	biografiasampo.fi	2018	Biographies	52 000	5 373 496	SPARQL Faceter	AngularJS	Finnish Literature Society
9. NameSampo	nimisampo.fi/en	2019	Place names	39 000	241 068 456	Sampo-UI		Institute for the Languages of Finland
10. WarVictimSampo 1914–1922	sotasurmat.narc.fi/en	2019	Military history	29 000	9 815 265	Sampo-UI		National Archives of Finland
11. Mapping Manuscript Migrations	mappingmanuscriptmigrations.org	2020	Pre-modern manuscripts	7 800	22 472 633	Sampo-UI		Schoenberg Institute for Manuscript Studies, Bodleian Libraries, and Institut de recherche et d’histoire des textes
12. AcademySampo	akatemiasampo.fi/en	2021	Finnish Academic People 1640–1899	8200	6 552 629	Sampo-UI		University of Helsinki, Finland
13. FindSampo	findsampo.fi	2021	Archaeology	3200	1 008 720	Sampo-UI		Finnish Heritage Agency
14. WarMemoirSampo	sotamuistot.arkisto.fi	2021	Video memoirs of WW2 veterans	2000	TBA	Sampo-UI		Tammenlehvän Perinnesäätiö ry
15. LetterSampo projects	LetterSampo Demonstrator	2022	Early Modern Letters 1500-1800 (Republic of Letters)	TBA	TBA	Sampo-UI		Huygens Institute, correspSearch, University of Oxford, archives in several countries
16. ParliamentSampo	parlamenttisampo.fi	2023	Parliamentary data	TBA	TBA	Sampo-UI		Parliament of Finland
17. LawSampo	lakisampo.fi	2023	Legislation and case law	TBA	TBA	Sampo-UI		Ministry of Justice, Finland
18. ConfermentSampo	promootiosampo.ldf.fi/en/	2023	University traditions	TBA	TBA	Sampo-UI		University of Helsinki
19. BookSampo, using Sampo UI	analyysi.kirjasampo.fi/en/	2023	Finnish fiction literature etc.	TBA	TBA	Sampo-UI		Finnish public library consortium Kirjastot.fi
20. OperaSampo	oopperasampo.fi/en/	2023	Musical performances	TBA	TBA	Sampo-UI		University of Arts
21. CoinSampo	coinsampo.ldf.fi	2024	Archeaology	TBA	TBA	Sampo-UI		Fínnish Heritage Agency, British Museum (PAS), Fitzwilliam Museum
22. LetterSampo Finland	kirjesampo.fi/en/	2025	Finnish Nineteenth-Century Letters	TBA	TBA	Sampo-UI		16 Finnish Memory Organizations
23. SampoSampo	samposampo.fi/en/	2026	Sampos and data services on the Web	TBA	TBA	Sampo-UI		Lots od memory and other organizations
24. ArtSampo	TBA	TBA	Art collections	TBA	TBA	Sampo-UI		National Gallery of Finland
25. HistorySampo	TBA	TBA	Historical events	TBA	TBA	Sampo-UI		Agricola Network of Historians

*External portal projects using Sampo-UI, driven by researhers not in the SeCo research group*
1. BookSampo	kirjasampo.fi	2011	Finnish fiction literature	1.1 million annual users (2021)	8 700 000	None	Drupal	Finnish public library consortium
2. Norske stadnamn	toponymi.spraksamlingane.no	2019	Place names	Unknown	217 353 538	Sampo-UI		Norwegian Language Collections
3. Staff portal	-	2019	Human resources	Unknown	Unknown	Sampo-UI		Lingsoft Ltd.
4. KAVI RITVA portal	TBA	2023	National audiovisual archives, Finland	Unknown	834 000 000	Sampo-UI		Sofia Digital Ltd
5. Golem Lab, EU project	TBA	2024	Golem Lab - Graphs and Ontologies for Literary Evolution Models	Unknown	Unknown	Sampo-UI		University of Groningen, the Netherlands
6. PM-Sampo, VU University and Wereldmuseum, the Netherlands	TBA	2025	Pressing Matter project	Unknown	Unknown	Sampo-UI		VU University, Aalto University, and Wereldmuseum
7. DBLP-Sampo, University of Latvia	TBA	2025	TBA	Unknown	Unknown	Sampo-UI		DBLP database
8. SKCMDB Sampo, Reprex, Slovakia	TBA	2025	TBA	Unknown	Unknown	Sampo-UI		Slovakian music data
9. FinnoUgric Sampo, EU Horizon Project, Germany	TBA	2025	TBA	Unknown	Unknown	Sampo-UI		Open music data
10. Nobel Prize Sampo, University of Latvia	Nobel Prize Sampo	2025	TBA	Unknown	Unknown	Sampo-UI		Nobel Foundation
11. League of Nations Sampo, Geneva Graduate Institute (GDI), Switzerland	League of Nations Sampo	2026	Minutes of Multilateralism project	Unknown	Unknown	Sampo-UI		UN Archives et al.
12. EHRI Knowledge Graph Sampo, Belgium and The Netherlands	EHRI Knowledge Graph Sampo	2026	European Holocaust Research Infrastructure (EHRI)	Unknown	Unknown	Sampo-UI		Funded by Open Science Cluster's Action fort Research and Society (OSCARS)
13. BelHisFirm, University of Ghent, Belgium	BelHisFirm project	2026	BelHisFirm (open summer 2026)	Unknown	Unknown	Sampo-UI		Two centuries of Belgian corporate history, Belgium and The Netherlands
14. NuMAD, University of Ghent, Belgium	NuMAD (open summer 2026)	2026	NuMAD Belgium, National library and University of Ghent	Unknown	Unknown	Sampo-UI		Numismatic Roman coin collection
15. WenDang. WRITE Digital Archive, Italy	WRITE Collections	2026	University of Bologna	Unknown	Unknown	Sampo-UI		New Forms of Calligraphy in China: A Contemporary Culture Mirror
16. CHExRISH-sampo, Poland	CHExRISH, Cultural Heritage EXploration and Retrieval with Intelligent systes	2026	Jagiellonian University	Unknown	Unknown	Sampo-UI		Innterdisciplinary research on digital technologies and Artificial Intelligence (AI) in the area of cultural heritage

Related videos

LetterSampo - Republic of Letters 1500-1800 on the Semantic Web

AcademySampo - Finnish Academic People 1640-1899

BiographySampo - Artificial Intelligence Reading Biographies for the Semantic Web

WarSampo - World War II on the Semantic Web

ParliamentSampo - Parliament of Finland on the Semantic Web

LawSampo - Finnish Legislation and Case Law on the Semantic Web

WarMemoirSampo - Video Interviews of veterans of the Second World War in Finland

Building a National Level Linked Open Data Infrastructure for Digital Humanities in Finland

The keynote presentation video of the DCMI 2021 confence below gives an overview of our work on developing a national Semantic Web infrastructure in Finland and its applications.

Contact

Professor Eero Hyvönen
Aalto University and University of Helsinki (HELDIG)
first.last [ at ] aalto.fi

Publications about the Sampo Model and Sampo Series as a Whole

Publications of each particular Sampo portal are available on their respective homepages listed in the above table.

2026

Joren Six, Jahid Chetti, Annastiiina Ahola, Frederic Lamsens, Heikki Rantala, Eero Hyvönen: Sampo-UI Meets Ontop: Publishing Relational Digital Humanities Data on the Semantic Web. June, 2026. Submitted for evaluation. bib pdf

Eero Hyvönen, Petri Leskinen, Heikki Rantala and Jouni Tuominen: Using ParliamentSampo Linked Open Data Service and Portal for Analyzing Interruptions and Laughter in the Plenary Sessions of the Parliament of Finland. June, 2026. Submitted for evaluation. bib pdf

Annastiina Ahola, Lilli Peura, Rafael Leal, Heikki Rantala and Eero Hyvönen: Using generative AI and LLMs to enrich art collection metadata for searching, browsing, and studying art history in Digital Humanities. Humanizing Technology, Volume III - Artificial Intelligence and the Humanities (Silvia Lima, Gonçalves Araújo, Micaela Aguiar, Dalila Durães (ed.)), Peter Lang Verlag, March, 2026. In press. bib pdf

Eero Hyvönen, Petri Leskinen, Alexandre Lionnet, Blandine Blukacz-Louisfert, Pierre-Etienne Bourneuf, Davide Rodogno, Grégoire Mallard, and Florian Cafiero: Linked Open Data Approach to Study the Assembly Minutes of International Organizations and Their Underlying Prosopography in the Real World Context. Proceedings of Digital Humanities 2026 (DH 2026), Daejeon, South Korea, July 27-31, 2026. Accepted. bib pdf

Eero Hyvönen, Petri Leskinen, Grégoire Mallard, Pierre-Etienne Bourneuf, Alexandre Lionnet, Blandine Blukacz-Louisfert, Davide Rodogno, and Florian Cafiero: Minutes of Multilateralism on the Semantic Web – League of Nations Sampo (1920–1946) Portal for Digital Humanities Research. The Semantic Web: ESWC 2026 Satellite Events, Dubrovnik, Croatia, May 10 - 14, 2026, Proceedings, Springer-Verlag, 2026. Accepted. bib pdf

Eero Hyvönen, Petri Leskinen, Alexandre Lionnet, Blandine Blukacz-Louisfert, Pierre-Etienne Bourneuf, Davide Rodogno, Grégoire Mallard, and Florian Cafiero: A Linked Open Data Infrastructure for Studying Historical Activities of International Organizations: First Results on the League of Nations (1920-1946) (abstract). Proceedings of DARIAH Annual Meeting, Rome, Italy, May 26-29, 2026. Accepted. bib pdf

Heikki Rantala, Annastiina Ahola, Esko Ikkala, Eero Hyvönen: Applying the Sampo-UI Framework for Searching and Visualizing Linked Open Data (abstract). Proceedings of DARIAH Annual Meeting, May 26-29, 2026, 2026. Forth-coming. bib pdf

Petri Leskinen, Eero Hyvönen, Alexandre Lionnet, Blandine Blukacz-Louisfert, Pierre-Etienne Bourneuf, Davide Rodogno, Grégoire Mallard, and Florian Cafiero: A Linked Open Data Service and Semantic Portal to Study the Assembly Minutes and Prosopography of the League of Nations (1920–1946). The Semantic Web: ESWC 2026, Dubrovnik, Croatia, May 10 - 14, 2026, Proceedings, Springer-Verlag, 2026. In press. bib pdf

2025

Eero Hyvönen, Petri Leskinen, Henna Poikkimäki, Heikki Rantala, Jouni Tuominen, Senka Drobac, Ossi Koho, Ilona Pikkanen and Hanna-Leena Paloposki: LetterSampo Finland (1809–1917) Data Service and Portal: Searching, Exploring, and Analyzing Historical Letters and Their Underlying Networks. The Semantic Web: ESWC 2025 Satellite Events, Portoroz, Slovenia, June 1 - 5, 2025, Proceedings, Lecture Notes in Computer Science, vol. 15832, pp. 80-86, Springer-Verlag, 2025. bib pdf link

Annastiina Ahola, Telma Peura, Eero Hyvönen: Using Linked Data for Data Analytic Literary Research: Case BookSampo - Finnish Fiction Literature on the Semantic Web. Journal of the Association for Information Science and Technology, vol. 76, no. 7, pp. 937-958, 2025. DOI: 10.1002/asi.24984. bib link

Eero Hyvönen, Laura Sinikallio, Petri Leskinen, Senka Drobac, Rafael Leal, Matti La Mela, Jouni Tuominen, Henna Poikkimäki and Heikki Rantala: Publishing and Using Parliamentary Linked Data on the Semantic Web: ParliamentSampo System for Parliament of Finland. Semantic Web, vol. 16, no. 1, 2025. DOI: 10.3233/SW-243683. bib pdf link

Eero Hyvönen, Annastiina Ahola, Petri Leskinen and Jouni Tuominen: SampoSampo: A Portal for Studying Enriched Data and Semantic Connections on a Cultural Heritage Linked Open Data Cloud. The Semantic Web: ESWC 2025 Satellite Events, Portoroz, Slovenia, June 1 - 5, 2025, Proceedings, Lecture Notes in Computer Science, vol. 15832, pp. 67-74, Springer-Verlag, 2025. bib pdf link

Ilona Pikkanen, Matti La Mela, Hanna-Leena Paloposki and Jouni Tuominen: A Critical Collection History of Nineteenth-century Women’s Letters: Overcoming the Occluded Archive with Data-Driven Methods. Digital Humanities Quarterly, vol. 19, no. 4, 2025. bib pdf link

Aija Valleala, Eero Hyvönen, Heikki Rantala and Jouni Tuominen: Using Legislative Change History of Statutes Based on a Linked Open Data Knowledge Graph. Proceedings of the 7th International Knowledge Graph and Semantic Web Conference, Leipzig, Germany, November 26-28, 2025, pp. 256-264, Springer-Verlag, November, 2025. bib pdf link

Heikki Rantala: Publishing, Exploring, and Analyzing Cultural Heritage Linked Data. Dissertation, Aalto University, School of Science, Department of Computer Science, November, 2025. bib pdf link

Eero Hyvönen: Digital Humanities on the Semantic Web: from Infrastructure to Practical Applications, AI-based Knowledge Discovery, and Web of Wisdom. 29th International Conference on Theory and Practise of Digital Libraries, September 23-28, Tampere, Extended keynote abstract, Proceedings, Springer-Verlag, September, 2025. Forth-coming. bib pdf

Eero Hyvönen, Petri Leskinen, Henna Poikkimäki, Heikki Rantala, Rafael Leal, Jouni Tuominen, Senka Drobac, Ossi Koho, Ilona Pikkanen and Hanna-Leena Paloposki: Searching, exploring, and analyzing historical letters and the underlying networks: LetterSampo Finland – Finnish 19th-Century Letters on the Semantic Web. DHNB 2025 Conference Proceedings. Volume 2, Digital Humanities in the Nordic and Baltic Countries Publications, vol. 7, no. 4, University of Oslo Library, Norway, September, 2025. bib pdf link

Sarah Binta Alam Shoilee, Victor de Boer, Annastiina Ahola, Heikki Rantala, Eero Hyvönen, Jacco van Ossenbruggen and Susan Legene: Bridging Data Gaps: Harnessing Semantic Associations for Knowledge Discovery in Colonial Heritage. Springer-Verlag, August, 2025. Submitted for evaluation. bib pdf

Sarah Binta Alam Shoilee, Annastiina Ahola, Heikki Rantala, Eero Hyvönen, Victor de Boer, Jacco van Ossenbruggen and Susan Legene: Enhancing Provenance Research with Linked Data: A Visual Approach to Knowledge Discovery. Proceedings of the Second International Workshop of Semantic Digital Humanities (SemDH 2025), co-located with the Extended Semantic Web Conference 2025 (ESWC 2025), vol. 4009, CEUR Workshop Proceedings, June, 2025. bib pdf link

Eero Hyvönen, Annastiina Ahola, Petri Leskinen, Heikki Rantala and Jouni Tuominen: How to Create a Portal for Digital Humanities Research Using a Linked Open Data Cloud of Cultural Heritage Knowledge Graphs: Case SampoSampo. Proceedings of the Second International Workshop of Semantic Digital Humanities (SemDH 2025), co-located with the Extended Semantic Web Conference 2025 (ESWC 2025), vol. 4009, CEUR Workshop Proceedings, June, 2025. bib pdf link

Eero Hyvönen: Serendipitous knowledge discovery on the Web of Wisdom based on searching and explaining interesting relations in knowledge graphs. Journal of Web Semantics, vol. 85, Elsevier, May, 2025. DOI: 10.1016/j.websem.2024.100852. bib pdf link

Heikki Rantala, Eero Hyvönen, Eljas Oksanen and Jouni Tuominen: Opening Archaeological Public Finds Data with Semantic Web Technologies: Demonstrating FindSampo, CoinSampo, and PASampo. Digital Humanities in Nordic and Baltic Countries (DHNB 2025). Book of Abstracts, March, 2025. Demo paper. bib pdf link

Rafael Leal, Annastiina Ahola and Eero Hyvönen: Enriching Metadata with LLMs and Knowledge Graphs: Case Finnish Named Entity Linking. Digital Humanities in Nordic and Baltic Countries (DHNB 2025). Book of Abstracts, March, 2025. Long papers. bib pdf link

Annastiina Ahola, Eero Hyvönen, Heikki Rantala, Rafael Leal and Anne Kauppala: Digital Humanities on the Semantic Web for visual, literary, and performing arts: Demonstrating ArtSampo, BookSampo, and OperaSampo Linked Open Data services and semantic portals. Digital Humanities in Nordic and Baltic Countries (DHNB 2025). Book of Abstracts, March, 2025. Demo paper. bib pdf link

Niks Kristofers Grislis, Kārlis Čerāns, Mikus Grasmanis, Heikki Rantala, and Eero Hyvönen: How to Add a User Interface on Top of an External SPARQL Endpoint: Case Nobel Prize Sampo. SEMANTiCS-PDWT 2025, Posters, Demos, Workshops, and Tutorials at SEMANTiCS 2025, vol. 4064, CEUR Workshop Proceeding, 2025. bib pdf link

Sarah Binta Alam Shoilee, Annastiina Ahola, Heikki Rantala, Eero Hyvönen, Victor de Boer, Jacco van Ossenbruggen and Susan Legene: PM-SAMPO: Semantic Portal for Heritage Object Provenance Research. The Semantic Web: ESWC 2025 Satellite Events, Portoroz, Slovenia, June 1 - 5, 2025, Proceedings, Springer-Verlag, 2025. Accepted, forth-coming. bib pdf

Eero Hyvönen, Annastiina Ahola, Petri Leskinen and Jouni Tuominen: Aggregating and Aligning Knowledge Graphs into a Global Service: SampoSampo System for Cross-cultural Data Search, Exploration, and Analysis. Digital Humanities in Nordic and Baltic Countries (DHNB 2025). Book of Abstracts, 2025. Short papers. bib pdf link

Eero Hyvönen, Petri Leskinen, Henna Poikkimäki, Heikki Rantala, Jouni Tuominen, Senka Drobac, Ossi Koho, Ilona Pikkanen and Hanna-Leena Paloposki: Searching, exploring, and analyzing historical letters and the underlying networks: LetterSampo Finland (1809–1917) data service and semantic portal. Digital Humanities in Nordic and Baltic Countries (DHNB 2025). Book of Abstracts, 2025. Long papers. bib pdf link

2024

Eljas Oksanen, Frida Ehrnsten, Heikki Rantala and Eero Hyvönen: Semantic Solutions for Democratising Archaeological and Numismatic Data Analysis. ACM Journal of Computing and Cultural Heritage, vol. 16, no. 4, Association for Computing Machinery, 2024. bib pdf link

Eero Hyvönen: How to Create and Use a National Cross-domain Ontology and Data Infrastructure on the Semantic Web. Semantic Web - Interoperability, Usability, Applicability, vol. 15, no. 4, pp. 1499-1513, 2024. DOI: 10.3233/SW-243468. bib pdf link

Petri Leskinen: Modeling and Using Biographical Linked Data for Prosopographical Data Analysis. Dissertation, Aalto University, School of Science, Department of Computer Science, October, 2024. bib pdf link

Eero Hyvönen and Jouni Tuominen: 8-star Linked Open Data Model: Extending the 5-star Model for Better Reuse, Quality, and Trust of Data. Posters, Demos, Workshops, and Tutorials of the 20th International Conference on Semantic Systems (SEMANTiCS 2024), vol. 3759, CEUR Workshop Proceedings, September, 2024. bib pdf link

Henna Poikkimäki, Kati Katajisto, Petri Leskinen and Eero Hyvönen: Applying Network and Bibliometric Analyses to Mentions of Politicians in Plenary Speeches: Case ParliamentSampo - Parliament of Finland on the Semantic Web. July, 2024. Submitted for evaluation. bib pdf

Eero Hyvönen: Military History on the Semantic Web: Lessons Learned from Developing Three In-use Linked Open Data Services and Semantic Portals for Digital Humanities. Intelligent Computing for Cultural Heritage: Global Developments and China´s Innovations, Francis & Taylor, Routledge, July, 2024. Book chapter. bib pdf link

Eero Hyvönen: Creating and Using Biographical Dictionaries for Digital Humanities Based on Linked Data: A Survey of Web Services in Use in Finland. Proceedings of the Biographical Data in a Digital World 2022 (BD 2022), Tokyo, Institute of Cultural History, ZRC SAZU, Ljubljana, Slovenia, January, 2024. bib pdf link

Petri Leskinen and Eero Hyvönen: Biographical and Prosopographical Analyses of Finnish Academic People 1640–1899 Based on Linked Open Data. Proceedings of the Biographical Data in a Digital World 2022 (BD 2022), Tokyo, Institute of Cultural History, ZRC SAZU, Ljubljana, Slovenia, January, 2024. bib pdf link

Eero Hyvönen: Sampo-järjestelmien verkosto avaa linkitettyä kulttuuridataa tutkijoille ja kansalaisille semanttisessa webissä. Tieteessä tapahtuu, no. 2, 2024. bib pdf

2023

Heikki Rantala, Eero Hyvönen and Petri Leskinen: Finding relations between entities in a knowledge graph: Case artists of the Getty Union List of Artist Names (ULAN). 2023. Submitted for review. bib pdf

Eero Hyvönen: Parlamenttisampo avaa eduskunnan miljoona puhetta ja kansanedustajien verkostot kaikkien tutkittaviksi. Tieteessä tapahtuu, vol. 41, no. 1, Tieteellisten seurain valtuuskunta (TSV), 2023. bib pdf link

Senka Drobac, Laura Sinikallio and Eero Hyvönen: An OCR Pipeline for Transforming Parliamentary Debates into Linked Data: Case ParliamentSampo – Parliament of Finland on the Semantic Web. Digital Humanities in the Nordic and Baltic Countries Publication, DHNB2023 Conference Proceedings, vol. 5, no. 1, pp. 287-296, University of Oslo Library, Norway, 2023. bib pdf link

Mehwish Alam, Victor de Boer, Enrico Daga, Marieke van Erp, Eero Hyvönen and Albert Meroño-Peñuela: Editorial of Special Issue on Cultural Heritage and Semantic Web. Semantic Web - Interoperability, Usability, Applicability, vol. 14, no. 2, pp. 155-158, IOS Press, 2023. bib link

Heikki Rantala, Eero Hyvönen and Petri Leskinen: Finding and explaining relations in a biographical knowledge graph based on life events: Case BiographySampo. ESWC 2023 Workshops and tutorials joint proceedings, CEUR Workshop Proceedings, 2023. Forth-coming. bib pdf

Eero Hyvönen, Petri Leskinen and Jouni Tuominen: A Data-driven Approach to Create an Ontology of Parliamentary Work: Case Parliament of Finland on the Semantic Web. Proceedings of SWODCH 2023. Semantic Web and Ontology Design for Cultural Heritage. Co-located with the 22nd International Semantic Web Conference (ISWC 2023) in Athens, Greece, CEUR Workshop Proceedings, Vol-3540, November, 2023. bib pdf link

Heikki Rantala, Annastiina Ahola, Esko Ikkala and Eero Hyvönen: How to create easily a data analytic semantic portal on top of a SPARQL endpoint: introducing the configurable Sampo-UI framework. VOILA! 2023 Visualization and Interaction for Ontologies, Linked Data and Knowledge Graphs 2023, pp. 28-39, CEUR Workshop Proceedings, Vol. 3508, October, 2023. bib pdf link

Eero Hyvönen, Laura Sinikallio, Petri Leskinen, Senka Drobac, Rafael Leal, Matti La Mela, Jouni Tuominen, Henna Poikkimäki and Heikki Rantala: Plenary Speeches of the Parliament of Finland as Linked Open Data and Data Services. Joint Proceedings of the Second International Workshop on Knowledge Graph Generation From Text and the First International BiKE Challenge co-located with 20th Extended Semantic Conference (ESWC 2023), pp. 1-20, CEUR Workshop Proceedings, Vol. 3447, August, 2023. bib pdf link

Annastiina Ahola and Eero Hyvönen: Visualizing Literary Linked Data for Public Library Users in the New User Interface for BookSampo – Finnish Fiction Literature on the Semantic Web. VOILA! 2023 Visualization and Interaction for Ontologies, Linked Data and Knowledge Graphs 2023, pp. 2-17, CEUR Workshop Proceedings, Vol. 3508, July, 2023. bib pdf link

Annastiina Ahola, Telma Peura and Eero Hyvönen: Interfacing the BookSampo Knowledge Graph of Finnish Literature for Data Analyses in Digital Humanities. DARIAH Annual Event 2023, poster paper, DARIAH-EU, June, 2023. bib link

Annastiina Ahola, Eero Hyvönen and Heikki Rantala: A User Interface Model for Digital Humanities Research: Case BookSampo – Finnish Fiction Literature on the Semantic Web. Proceedings of ESWC 2023, poster and demo papers, Springer-Verlag, June, 2023. bib pdf

Eero Hyvönen, Petri Leskinen and Heikki Rantala: Integrating Faceted Search with Data Analytic Tools in the User Interface of ParliamentSampo - Parliament of Finland on the Semantic Web. The Semantic Web: ESWC 2023 Satellite Events, pp. 16-21, Sringer-Verlag, June, 2023. bib pdf

Eero Hyvönen: Creating and Using a Linked Open Ontology and Data Infrastructure for Digital Humanities in Finland: Lessons Learned 2003-2023. Paper presented at the DARIAH-EU Annual Event 2023, Budapest, June, 2023. bib pdf

Frida Erhnsten, Eljas Oksanen, Heikki Rantala and Eero Hyvönen: DigiNUMA ja Rahasampo – uusi digitaalinen palvelu rahalöydöistä kiinnostuneille. Numismaattinen aikakausilehti, April, 2023. bib pdf link

Eero Hyvönen: How to Create a National Cross-domain Ontology and Linked Data Infrastructure and Use It on the Semantic Web. Programming and Data Infrastructure in Digital Humanities, Book of Abstracts, pp. 7, High Performance Computing Centre, University of Évora, Portugal, March, 2023. bib link

Eero Hyvönen, Petri Leskinen, Laura Sinikallio, Senka Drobac, Rafael Leal, Matti La Mela, Jouni Tuominen, Henna Poikkimäki and Heikki Rantala: ParliamentSampo Infrastructure for Publishing the Plenary Speeches and Networks of Politicians of the Parliament of Finland as Open Data Services. Aalto University, Dept. of Computer Science, February, 2023. Paper published at the publication event of the ParliamentSampo data service and portal. bib pdf

Eero Hyvönen: Digital Humanities on the Semantic Web: Sampo Model and Portal Series. Semantic Web – Interoperability, Usability, Applicability, vol. 14, no. 4, pp. 729-744, IOS Press, 2023. bib pdf link

2022

Eljas Oksanen, Heikki Rantala, Jouni Tuominen, Michael Lewis, David Wigg-Wolf, Frida Ehrnsten and Eero Hyvönen: Digital Humanities Solutions for Pan-European Numismatic and Archaeological Heritage Based on Linked Open Data. DHNB 2022 The 6th Digital Humanities in Nordic and Baltic Countries Conference, pp. 352-360, CEUR Workshop Proceedings, Vol. 3232, 2022. bib pdf link

Telma Peura, Petri Leskinen and Eero Hyvönen: What Linked Data Can Tell about Geographical Trends in Finnish Fiction Literature - Using the BookSampo Knowledge Graph in Digital Humanities. 2022. Abstract under peer review. bib

Arttu Oksanen, Eero Hyvönen, Minna Tamper, Jouni Tuominen, Henna Ylimaa, Katja Löytynoja, Matti Kokkonen and Aki Hietanen: An Anonymization Tool for Open Data Publication of Legal Documents. AI4LEGAL-KGSUM 2022: Artificial Intelligence Technologies for Legal Documents and Knowledge Graph Summarization 2022, vol. 3257, pp. 12-21, CEUR Workshop Proceedings, August, 2022. bib pdf link

Henna Poikkimäki, Petri Leskinen, Minna Tamper and Eero Hyvönen: Analyses of Networks of Politicians Based on Linked Data: Case ParliamentSampo - Parliament of Finland on the Semantic Web. New Trends in Database and Information Systems, pp. 585-592, Springer International Publishing, August, 2022. bib pdf link

Eero Hyvönen, Esko Ikkala, Mikko Koho, and Rafael Leal, Heikki Rantala and Minna Tamper: How to Search and Contextualize Scenes inside Videos for Enriched Watching Experience: Case Stories of the Second World War Veterans. The Semantic Web: ESWC 2022 Satellite Events, Lecture Notes in Computer Science, vol. 13384, pp. 163-167, Springer, July, 2022. bib pdf link

Eero Hyvönen, Laura Sinikallio, Petri Leskinen, Matti La Mela, Jouni Tuominen, Kimmo Elo, Senka Drobac, Mikko Koho, Esko Ikkala, Minna Tamper, Rafael Leal and Joonas Kesäniemi: Linked Data Approach for Studying Parliamentary Speeches and Networks of Politicians in Finland 1907-2021 (long paper). Digital Humanities 2022, Conference Abstracts, July 25-29, 2022 Online, Tokyo. Japan, University of Tokyo, pp. 254-257, ADHO, July, 2022. bib link

Eero Hyvönen, Laura Sinikallio, Petri Leskinen, Matti La Mela, Jouni Tuominen, Kimmo Elo, Senka Drobac, Mikko Koho, Esko Ikkala, Minna Tamper, Rafael Leal and Joonas Kesäniemi: Finnish Parliament on the Semantic Web: Using ParliamentSampo Data Service and Semantic Portal for Studying Political Culture and Language. Digital Parliamentary data in Action (DiPaDA 2022), Workshop at the 6th Digital Humanities in Nordic and Baltic Countries Conference, long paper, pp. 69-85, CEUR Workshop Proceedings, Vol. 3133, May, 2022. bib pdf link

Mikko Koho, Rafael Leal, Esko Ikkala, Minna Tamper, Heikki Rantala and Eero Hyvönen: Building Lightweight Ontologies for Faceted Search with Named Entity Recognition: Case WarMemoirSampo. Proceedings of the 1st International Workshop on Knowledge Graph Generation From Text and the 1st International Workshop on Modular Knowledge co-located with 19th Extended Semantic Conference (ESWC 2022) (Sanju Tiwari, Nandana Mihindukulasooriya, Francesco Osborne, Dimitris Kontokostas, Jennifer D’Souza and Mayank Kejriwal (eds.)), vol. 3184, pp. 19-35, CEUR Workshop Proceedings, May, 2022. International Knowledge Graph Generation From Text (TEXT2KG). bib pdf link

Heikki Rantala and Eero Hyvönen: Who is Related to What and How? Using Biographical Knowledge Graphs for Explainable Relational Search in BiographySampo. May, 2022. Submitted for review. bib pdf

Petri Leskinen, Heikki Rantala and Eero Hyvönen: Analyzing the Lives of Finnish Academic People 1640–1899 in Nordic and Baltic Countries: AcademySampo Data Service and Portal. DHNB 2022 The 6th Digital Humanities in Nordic and Baltic Countries Conference, CEUR Workshop Proceedings, long papers, Vol. 3232, March, 2022. bib pdf link

Arttu Oksanen, Minna Tamper, Jouni Tuominen, Aki Hietanen and Eero Hyvönen: A Tool for Pseudonymization of Textual Documents for Digital Humanities Research and Publication. 6th Digital Humanities in Nordic and Baltic Countries Conference, poster paper, book of abstracts, pp. 107-108, March, 2022. bib pdf link

Jouni Tuominen, Mikko Koho, Ilona Pikkanen, Senka Drobac, Johanna Enqvist, Eero Hyvönen, Matti La Mela, Petri Leskinen, Hanna-Leena Paloposki and Heikki Rantala: Constellations of Correspondence: a Linked Data Service and Portal for Studying Large and Small Networks of Epistolary Exchange in the Grand Duchy of Finland. DHNB 2022 The 6th Digital Humanities in Nordic and Baltic Countries Conference, pp. 415-423, CEUR Workshop Proceedings, Vol. 3232, March, 2022. bib pdf link

Rafael Leal, Heikki Rantala, Mikko Koho, Esko Ikkala, Markus Merenmies and Eero Hyvönen: WarMemoirSampo: A Semantic Portal for War Veteran Interview Videos. DHNB 2022 The 6th Digital Humanities in Nordic and Baltic Countries Conference, CEUR Workshop Proceedings, long papers, Vol. 3232, March, 2022. bib pdf link

Mikko Koho, Heikki Rantala and Eero Hyvönen: Digital Humanities and Military History: Analyzing Casualties of the WarSampo Knowledge Graph. DHNB 2022 The 6th Digital Humanities in Nordic and Baltic Countries Conference (Karl Berglund, Matti La Mela and Inge Zwart (eds.)), vol. 3232, CEUR Workshop Proceedings, Uppsala, Sweden, March, 2022. bib pdf link

Esko Ikkala, Eero Hyvönen, Heikki Rantala and Mikko Koho: Sampo-UI: A Full Stack JavaScript Framework for Developing Semantic Portal User Interfaces. Semantic Web – Interoperability, Usability, Applicability, vol. 13, no. 1, pp. 69-84, January, 2022. Online version published in 2021, print version in 2022. bib pdf link

Eero Hyvönen, Annastiina Ahola and Esko Ikkala: BookSampo Fiction Literature Knowledge Graph Revisited: Building a Faceted Search Interface with Seamlessly Integrated Data-analytic Tools. Theory and Practice of Digital Libraries (TPDL 2022), Accelerating Innovations Track, Padova, Italy, pp. 506–511, Springer, 2022. bib pdf link

2021

Eero Hyvönen, Esko Ikkala, Mikko Koho, Jouni Tuominen, Toby Burrows, Lynn Ransom and Hanno Wijsman: Mapping Manuscript Migrations on the Semantic Web: A Semantic Portal and Linked Open Data Service for Premodern Manuscript Research. The Semantic Web - ISWC 2021, Lecture Notes in Computer Science, vol. 12922, pp. 615-630, Springer, 2021. bib pdf link

Eero Hyvönen, Petri Leskinen, Minna Tamper, Heikki Rantala, Esko Ikkala, Jouni Tuominen and Kirsi Keravuori: Biografiasampo yhdistää ja rikastaa suomalaiset elämäkerrat linkitettynä datana semanttisessa webissä (Biographysampo links and enriches Finnish biographies as linked data on the Semantic Web. Informaatiotutkimus, vol. 40, no. 3, pp. 346-368, November, 2021. bib pdf link

Eero Hyvönen, Laura Sinikallio, Petri Leskinen, Senka Drobac, Jouni Tuominen, Kimmo Elo, Matti La Mela, Mikko Koho, Esko Ikkala, Minna Tamper, Rafael Leal and Joonas Kesäniemi: Parlamenttisampo: eduskunnan aineistojen linkitetyn avoimen datan palvelu ja sen käyttömahdollisuudet. Informaatiotutkimus, vol. 40, no. 3, pp. 216-244, November, 2021. bib pdf link

Eero Hyvönen: Sammon taontaa semanttisessa webissä (Forging Sampos on the Semantic Web). Tekniikan Waiheita, vol. 39, no. 2, pp. 87-105, Tekniikan Historian Seura ry, July, 2021. bib pdf link

Eero Hyvönen: Digitaalisten ihmistieteiden keskus HELDIG profiloi Helsingin yliopiston humanistisia aloja (Helsinki Centre for Digital Humanitites HELDIG Profiled Areas in Humanities at the University of Helsinki). Tieteessä tapahtuu, no. 1, Tieteellisten seurain valtuuskunta, February, 2021. bib pdf link

2020

Eero Hyvönen: Semantic Sampo Portals for Digital Humanities Based on a National Linked Open Data Infrastructure. 2020. White paper, Aalto University, Semantic Computing Research Group (SeCo). bib pdf

Eero Hyvönen: Sampo Model and Semantic Portals for Digital Humanities on the Semantic Web. DHN 2020 Digital Humanities in the Nordic Countries. Proceedings of the Digital Humanities in the Nordic Countries 5th Conference, pp. 373-378, CEUR Workshop Proceedings, vol. 2612, Riga, Latvia, October, 2020. bib pdf link

Chris A. Sula, Kalani Craig, Michelle Dalmu, Alex Humphreys, Eero Hyvönen, Hannah L. Jacobs, Humphrey Keah, Joseph Kiplangat, Thea Lindquist, Nicholas Weber, Scott B. Weingart: Infrastructures of Digital Humanities. 83rd Association for Information Science and Technology (ASIS&T) Annual Meeting, proceedings, Association for Information Science and Technology, Silver Spring, Maryland, USA, October, 2020. bib pdf link

Eero Hyvönen: Tekoäly ja semanttinen web tarjoavat huikeat mahdollisuudet suurten aineistojen hallintaan. Kansallisarkiston strategia 2025, näkökulmia tulevaan (Jussi Nuorteva, Päivi Happonen (ed.)), pp. 20-21, Kansallisarkisto, Helsinki, May, 2020. bib link

Eero Hyvönen: Using the Semantic Web in Digital Humanities: Shift from Data Publishing to Data-analysis and Serendipitous Knowledge Discovery. Semantic Web, vol. 11, no. 1, pp. 187-193, 2020. bib pdf link