An algorithm for modelling key terms

The ability to analyse and represent formally semantic relations of terms is a core issue in information retrieval (IR), natural language processing (NLP), and in many related areas. In the application of evidential theory to IR, in particular, the problem of analysis and representation becomes more apparent since evidential theory is based on set theory and individual terms have to be modelled as subsets of the frame of discernment. How to find the frame and model the terms is a challenge. The problem leads to other problems of application, as pointed out repeatedly in the literature. In this study, we focus on the problem, present a method for normalizing a thesaurus, and propose an algorithm for establishing the frame of discernment and for modelling terms as subsets of the frame. The key aim of this study is to treat semantic relations of terms by means of a normalized thesaurus. Keyword: Thesaurus normalization; Semantic representation; Term classification

• Type: Journal
• Year: 2008
• Where: IJIS
• Authors: D. Cai, C. J. van Rijsbergen
• Keywords: Core Issue, Evidential Theory, IJIS 2008, Semantic Relations