Heterogeneous knowledge sources in graph-based expansion of the polish wordnet

Authors:
Maciej Piasecki;Roman Kurc;Bartosz Broda
Affiliations:
Institute of Informatics, Wrocław University of Technology, Poland;Institute of Informatics, Wrocław University of Technology, Poland;Institute of Informatics, Wrocław University of Technology, Poland
Venue:
ACIIDS'11 Proceedings of the Third international conference on Intelligent information and database systems - Volume Part I
Year:
2011

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ACIIDS'11 Proceedings of the Third international conference on Intelligent information and database systems - Volume Part I

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Abstract

The paper presents an algorithm of automatic wordnet expansion on the basis of heterogeneous knowledge sources extracted from a large corpus. The algorithm is the reformulation of the algorithm used in the WordnetWeaver system in terms of the SOM model. Integration of knowledge sources is based on the weighted voting scheme. Several wordnet relations are explored to define attachment points for a new word. Influence of different knowledge sources on the algorithm performance was experimentally investigated. The new version presents better precision than the previous one.