Survey on Ontology Construction Methodologies

Retrieval of relevant information from the large repositories of information system is a challenging task in today's scenario. Information repositories are much voluminous and stores data in various formats [1]. Most of the information retrieval systems are mainly based on keyword based text matching and retrieve unlimited volume of relevant and irrelevant information. In order to organize the data, a common terminology needs to be adopted. In this regard Ontology plays a major role which is used to capture the domain knowledge and it represents the knowledge Base. This paper discuss about the various methods used for the construction of the Ontology.