i0 BOOK REVIEW H. S. Heaps Information Retrieval: C o ~ u t a t i o n a l and Theoretical A s ~ t s Academic Press, Inc. iii Fifth Avenue, New York, NY 10003 The author of this book has done an excellent job of achieving least one portion science of his two-fold purpose: at ".~.to introduce the computer student to some of the basic problems of information retrieval required to develop suitable computer and to describe the techniques programs, ... (and) ... to describe the general structure of the relemay be under- vant computer programs so that basic design considerations stood by information officers and librarians will find this text palatable " Heaps expertly covers the various topics essential for the computer scientist to design practical document retrieval scientist, he expounds systems, while, for the science all non-computer on some very basic computer topics such as data structures, sorting and searching strategies, in the context of these document retrieval systems. Chapters 1 through 4 deal with " .. aspects of information retrieval that are not directly concerned with the computational izations of the structure of the computer programs." In Chapter 1 (Introduction) subject by
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