- FIN-CLARIAH Research Infrastructure
A new national research infrastructure initiative FIN-CLARIAH for...
8.12.2021 8:12 by eahyvone - WarMemoirSampo published on December 3, 2021
A new “Sampo” application, “WarMemoirSampo”...
8.12.2021 8:04 by eahyvone - Five new SeCo papers accepted for the ISWC 2021
The 20th International Semantic Web Conference (ISWC 2021), the...
2.8.2021 6:53 by eahyvone
- Pieterjan Deckers, Eero Hyvönen, Michael Lewis, Eljas Oksanen, Heikki Rantala and Jouni Tuominen: ARCH-ON: A new ontological framework to describe archaeological objects for Digital Humanities research
- Eero Hyvönen, Annastiina Ahola, Petri Leskinen and Jouni Tuominen: Connecting Everything to Everything Else in a Cloud of Cultural Heritage Knowledge Graphs: SampoSampo Data Linking Service and Semantic Portal (Abstract)
- Petri Leskinen, Annastiina Ahola, Heikki Rantala, Jouni Tuominen and Eero Hyvönen: Consistency checking in a cloud of interlinked Cultural Heritage knowledge graphs – first results of using the SampoSampo data service and portal
- Annastiina Ahola, Petri Leskinen, Heikki Rantala, Jouni Tuominen and Eero Hyvönen: Using Large Language Models for searching explainable relations in a cloud of Cultural Heritage knowledge graphs: SampoSampo as a neuro-symbolic system
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Knowledge Extraction from Natural Language
Case Finnish (and Swedish) Texts |
Knowledge Extraction from Finnish Texts
Goals of Research
In Digital Humanities (DH) the data comes in often in textual form (e.g., news, biographies, articles, novels). When publishing such content as Linked Data for DH analysis, the meaning of literal mentions of entities (such as names of persons and places), concepts, relations, events, topics, etc. have to be extracted from unstructured texts and represented as structured semantic data for the computer. In our own work, for example, such knowledge extraction has been needed when developing the Sampo series of semantic portals.
During this research, various natural language processing (NLP) tools and linguistic datasets have been developed. In our view, such tools and resources should be made openly available on the Web as web services. NLP tools and resources would be an important part of the Linked Open Data Infrastructure for Digital Humanities in Finland.
Services for NLP
More information will appear here later.
Contact Persons
Dr. Cand. Rafael Leal, Aalto University
Prof. Eero Hyvönen, University of Helsinki (HELDIG) and Aalto
Publications
2025
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
2024
Rafael Leal, Annastiina Ahola and Eero Hyvönen: Using LLMs for Enriching Metadata with Links to KOS and Knowledge Graphs: Case Finnish Named Entity Linking. Paper presented at NKOS Workshop on AI and KOS at DCMI-2024 in Toronto, June, 2024. Accepted, https://www.dublincore.org/news/2024/06-29_nkos-workshop/. bib pdf
2021
Rafael Leal, Joonas Kesäniemi, Mikko Koho and Eero Hyvönen: Relevance Feedback Search Based on Automatic Annotation and Classification of Texts. 3rd Conference on Language, Data and Knowledge (LDK 2021) (Dagmar Gromann, Gilles Sérasset, Thierry Declerck, John P. McCrae, Jorge Gracia, Julia Bosque-Gil, Fernando Bobillo and Barbara Heinisch (eds.)), Open Access Series in Informatics (OASIcs), vol. 93, pp. 18:1-18:15, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2021. bib pdf link
2020
Minna Tamper, Arttu Oksanen, Jouni Tuominen, Aki Hietanen and Eero Hyvönen: Automatic Annotation Service APPI: Named Entity Linking in Legal Domain. The Semantic Web: ESWC 2020 Satellite Events (Harth, Andreas, Presutti, Valentina, Troncy, Raphaël, Acosta, Maribel, Polleres, Axel, Fernández, Javier D., Xavier Parreira, Josiane, Hartig, Olaf, Hose, Katja and Cochez, Michael (eds.)), Lecture Notes in Computer Science, vol. 12124, pp. 208-213, Springer-Verlag, 2020. bib pdf link
Sami Sarsa and Eero Hyvönen: Searching Case Law Judgements by Using Other Judgements as a Query. Artificial Intelligence and Natural Language. 9th Conference, AINL 2020, Helsinki, Finland, October 7–9, 2020 (Filchenkov A., Kauttonen J. and Pivovarova L. (eds.)), pp. 145-157, Springer-Verlag, 2020. bib pdf link
Minna Tamper, Petri Leskinen, Jouni Tuominen and Eero Hyvönen: Modeling and Publishing Finnish Person Names as a Linked Open Data Ontology. 3rd Workshop on Humanities in the Semantic Web (WHiSe 2020), pp. 3-14, CEUR Workshop Proceedings, vol. 2695, June, 2020. bib pdf link
2019
Arttu Oksanen, Minna Tamper, Jouni Tuominen, Aki Hietanen and Eero Hyvönen: Anoppi: A Pseudonymization Service for Finnish Court Documents. Legal Knowledge and Information Systems. JURIX 2019: The Thirty-second Annual Conference (Araszkiewicz, M. and Rodríguez-Doncel, V. (eds.)), pp. 251-254, IOS Press, December, 2019. bib pdf link
Petri Leskinen and Eero Hyvönen: Extracting Genealogical Networks of Linked Data from Biographical Texts. The Semantic Web: ESWC 2019 Satellite Events (Hitzler, P., Kirrane, S., Hartig, O., de Boer, V., Vidal, M.-E., Maleshkova, M., Schlobach, S., Hammar, K., Lasierra, N., Stadtmüller, S., Hose, K., Verborgh, R. (ed.)), pp. 121-125, Springer, June, 2019. bib pdf
Matti La Mela, Minna Tamper and Kimmo Kettunen: Finding Nineteenth-century Berry Spots: Recognizing and Linking Place Names in a Historical Newspaper Berry-picking Corpus. The Fourth Digital Humanities in the Nordic Countries 2019 (DHN2019), CEUR Workshop Proceedings, Copenhagen, Denmark, March, 2019. bib pdf link
2018
Minna Tamper, Petri Leskinen, Kasper Apajalahti and Eero Hyvönen: Using Biographical Texts as Linked Data for Prosopographical Research and Applications. Digital Heritage. Progress in Cultural Heritage: Documentation, Preservation, and Protection. 7th International Conference, EuroMed 2018, Nicosia, Cyprus (Marinos Ioannides, Eleanor Fink, Raffaella Brumana, Petros Patias, Anastasios Doulamis, João Martins and Manolis Wallace (eds.)), pp. 125-137, Springer-Verlag, November, 2018. bib pdf link
Eero Hyvönen: Semanttinen web. Linkitetyn avoimen datan käsikirja (Semantic Web. Handbook of Linked Open Data). pp. 271, Gaudeamus, Helsinki, Finland, March, 2018. bib pdf link
