Marcia J. (University of California, Los Angeles, CA, USA) Bates 
Understanding Information Retrieval Systems [EPUB ebook] 
Management, Types, and Standards

In order to be effective for their users, information retrieval (IR) systems should be adapted to the specific needs of particular environments. The huge and growing array of types of information retrieval systems in use today is on display in Understanding Information Retrieval Systems: Management, Types, and Standards, which addresses over 20 typ