Modern information retrieval : the concepts and technology behind search

This is a rigorous and complete textbook for a first course on information retrieval from the computer science perspective. It provides an up-to-date student oriented treatment of information retrieval including extensive coverage of new topics such as web retrieval, web crawling, open source search engines and user interfaces.This book aims to provide a thorough and updated introduction to the key Information Retrieval (IT) concepts and technologies behind search engines. In the modern online world, seeking and finding informaiton of value is of paramound importance and, for this, people often refer to search engines because of their inherent effectiveness and simplicity. Search engines work because they are anchored on the field of IR--the primary goal of an IR system is to retrieve all teh documents as possible. This ambitious view of the problem naturally leads to a wealth of concepts and technologies, which are required to implement the search box paradigm. From parsing to indexing, clustering to classification, retrieval to ranking, and user feedback to retrieval evaluation, all of the most important concepts are carefully introduced and exemplified. The contents and structure of the book have been carefully designed by the two main authors, and the contributions of Eric Brown, Carlos Castillo, Marcos Gonc?alves, David Hawking, Marti Jearst, Mounia Lalmas, Yoelle Maarek, Christian Middleton, Gonzalo Navarro, Dulce Ponceleo?n, Edie Rasmussen, Malcolm Slaney, and Nivio Ziviani greatly enrich the text with individual expertise from leaders in the field. This completely reorganized, revised and enlarged second edition of Modern Information Retrieval contains four new chapters and double the number of pages nad bibliographic refrences of the first edition, and a companion website with teaching material. It will prove invaluable to students, professors, researchers, practitioners, and scholars of this fascinating field of IR.Table of ContentsUser interfaces for search / by Marti Hearst --Modeling --Retrieval evaluation --Relevance feedback and query expansion --Documents : languages & properties / with Gonzalo Navarro and Nivio Ziviani --Queries : languages & properties / with Gonzalo Navarro --Text classification / with Marcos Gonc?alves --Indexing and searching / with Gonzalo Navarro --Parallel and distributed IR / with Eric Brown --Web retrieval / with Yoelle Maarek --Web crawling / with Carlos Castillo --Structured text retrieval / with Mounia Lalmas --Multimedia information retrieval / by Dulce Ponceleo?n and Malcolm Slaney --Enterprise search / by David Hawking --Library systems / by Edie Rasmussen --Digital libraries / by Marcos Gonc?alves --Open source search engines / with Christian Middleton.xxx, 913 hlm. : ilus ; 24 c