Deriving Concepts Hierarchy
نویسنده
چکیده
Information Retrieval (IR) covers the problems relating to the effective storage, access, searching and locating documents that are relevant for user’s information need or query from large collection documents. Many techniques and tools have been developed to improve these processes. One of these tools is the thesaurus. This paper will present a tool for users to build thesauri according to their own requirements. The objective of this paper is to present an overview of how thesauri can be created automatically. The main goal is to design a comprehensive thesaurus-building tool that can be used in any specialty field. The system provides sufficient structure to represent different relationships among concepts and terms as well as to extract these relationships. In addition a thesaurus builder can also use different methods to extract terms and relation between them from document corpus. So, the system provides a set of interface functions through which the user can easily build a thesaurus.
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