Importance of Information Retrieval

Information retrieval (IR) technique stands today at a crossroads. With the enormous increase in recent years in the number of text databases available on-line, and the consequent need for better techniques to access this information, there has been a strong resurgence of interest in the research done in the area of information retrieval (IR). Originally an outgrowth of librarianship, it has expanded into fields such as office automation, genome databases, fingerprint identification, medical image management, knowledge finding in databases, and multimedia management. This paper deals with importance of IR and classical models of IR.