Text Information Retrieval Systems (Library and Information Science) (Library and Information (Hardcover))

This edition teaches people using or designing text retrieval systems how the systems work. For the designer, it covers problems they will face and reviews solutions to provide a basis for more advanced study. For those involved in searching for information, its purpose is to describe why information retrieval (or IR) systems work as they do. The book is primarily about computer-based retrieval systems, but the principles apply to nonmechanised ones as well. The book covers the nature of information, how it is organized for use by a computer, how search functions are carried out and some of the theory underlying these functions. This edition is updated to cover not only the World Wide Web, but also new developments on how IR systems are being designed. A limited knowledge of mathematics and computing is assumed.