Productivity of concepts in Serbian Wordnet

Abstract

Wordnet is an online lexical database designed for use under program control. It is based on word meaning, rather than word forms. All of the words that can express a given sense are grouped together in a synonym set (synset) representing a concept. All concepts are linked with semantic relations forming semantic network. The network is basically a forest consisting of concept hierarchies rooted in top ontology concepts. In this paper we describe several measures for determining productivity of some concept in order to find those concepts that most effectively represent hierarchy they belong to. They are different from top ontology concepts (which are too general), and could be considered as ontological concepts associated with classes characterized by hierarchies rooted in them. Determining most productive concepts may be applied to text classification in different ways. Information retrieval and information extraction could be made more efficient if they are based on such kind of classification.