Heili Orav


2014

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Proceedings of the Seventh Global Wordnet Conference
Heili Orav | Christiane Fellbaum | Piek Vossen
Proceedings of the Seventh Global Wordnet Conference

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Some structural tests for WordNet with results
Ahti Lohk | Heili Orav | Leo Võhandu
Proceedings of the Seventh Global Wordnet Conference

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Dense Components in the Structure of WordNet
Ahti Lohk | Kaarel Allik | Heili Orav | Leo Võhandu
Proceedings of the Ninth International Conference on Language Resources and Evaluation (LREC'14)

This paper introduces a test-pattern named a dense component for checking inconsistencies in the hierarchical structure of a wordnet. Dense component (viewed as substructure) points out the cases of regular polysemy in the context of multiple inheritance. Definition of the regular polysemy is redefined ― instead of lexical units there are used lexical concepts (synsets). All dense components are evaluated by expert lexicographer. Based on this experiment we give an overview of the inconsistencies which the test-pattern helps to detect. Special attention is turned to all different kind of corrections made by lexicographer. Authors of this paper find that the greatest benefit of the use of dense components is helping to detect if the regular polysemy is justified or not. In-depth analysis has been performed for Estonian Wordnet Version 66. Some comparative figures are also given for the Estonian Wordnet (EstWN) Version 67 and Princeton WordNet (PrWN) Version 3.1. Analysing hierarchies only hypernym-relations are used.

2013

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Nordic and Baltic Wordnets Aligned and Compared through “WordTies”
Bolette Sandford Pedersen | Lars Borin | Markus Forsberg | Neeme Kahusk | Krister Lindén | Jyrki Niemi | Niklas Nisbeth | Lars Nygaard | Heili Orav | Eirikur Rögnvaldsson | Mitchell Seaton | Kadri Vider | Kaarlo Voionmaa
Proceedings of the 19th Nordic Conference of Computational Linguistics (NODALIDA 2013)

2001

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Sensiting Inflectionality: Estonian Task for SENSEVAL-2
Neeme Kahusk | Heili Orav | Haldur Õim
Proceedings of SENSEVAL-2 Second International Workshop on Evaluating Word Sense Disambiguation Systems