Thomas Risse


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Finding Individual Word Sense Changes and their Delay in Appearance
Nina Tahmasebi | Thomas Risse
Proceedings of the International Conference Recent Advances in Natural Language Processing, RANLP 2017

We present a method for detecting word sense changes by utilizing automatically induced word senses. Our method works on the level of individual senses and allows a word to have e.g. one stable sense and then add a novel sense that later experiences change. Senses are grouped based on polysemy to find linguistic concepts and we can find broadening and narrowing as well as novel (polysemous and homonymic) senses. We evaluate on a testset, present recall and estimates of the time between expected and found change.


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NEER: An Unsupervised Method for Named Entity Evolution Recognition
Nina Tahmasebi | Gerhard Gossen | Nattiya Kanhabua | Helge Holzmann | Thomas Risse
Proceedings of COLING 2012