Extending and Updating the Finnish Wordnet

  • Krister Lindén
  • Jyrki Niemi
  • Mirka Hyvärinen


This paper presents simple methods for adding new words to a wordnet. We use the Finnish wordnet, FinnWordNet, as an example. We pay particular attention to high- and medium-frequency words thus far missing from FinnWordNet, and arrive at an estimate for the number of culture-specific words among them. We also find that the majority of the high- and medium-frequency words are compounds, which makes them relatively easy to add by using the head word of a compound to locate hypernym synset candidates. Another goal of ours is to add new synonyms to the existing synsets of FinnWordNet. We present a method that finds candidates for new synonyms from a bilingual lexical resource by exploiting the direct word sense translation correspondences between FinnWordNet and the Princeton WordNet. We apply the method to the interlanguage links between articles on the same topic in the Finnish and English Wikipedias on the one hand, and to the translations in the Finnish and English Wiktionaries on the other, and compare the results.


Noun Phrase English Word Common Word Word Sense Proper Noun 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



We are grateful to our two reviewers, Prof Lars Borin and Dr Antti Arppe, for their many insightful comments that helped us clarify many of our claims and statements. All remaining errors are of course our own.

We also wish to acknowledge the FIN-CLARIN and META-NORD funding for making this work possible. The META-NORD project has received funding from the European Union’s ICT Policy Support Programme as part of the Competitiveness and Innovation Framework Programme under grant agreement no. 270899.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Krister Lindén
    • 1
  • Jyrki Niemi
    • 1
  • Mirka Hyvärinen
    • 1
  1. 1.Department of Modern LanguagesUniversity of HelsinkiHelsinkiFinland

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