现代信息检索原书第2版

This book aims to provide a thorough and updated introduction to the key Information Retrieval (IT) concepts nad technologes 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 Gonçalves, David Hawking, Marti Jearst, Mounia Lalmas, Yoelle Maarek, Christian Middleton, Gonzalo Navarro, Dulce Ponceleón, 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 INformaiton 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. 1 Introduction . -- 2 User Interfaces for Search / by Marti Hearst. -- 3 Modeling . -- 4 Retrieval Evaluation . -- 5 Relevance Feedback and Query Expansion . -- 6 Documents: Languages & Properties / with Gonzalo Navarro and Nivio Ziviani. -- 7 Queries: Languages & Properties with Gonzalo Navarro. -- 8 Text Classification / with Marcos Goņcalves. -- 9 Indexing and Searching / with Gonzalo Navarro. -- 10 Parallel and Distributed IR / with Eric Brown. -- 11 Web Retrieval / with Yoelle Maarek. -- 12 Web Crawling / with Carlos Castillo. -- 13 Structured Text Retrieval / with Mounia Lalmas. -- 14 Multimedia Information Retrieval by Dulce Ponceleón and Malcolm Slaney. -- 15 Enterprise Search / by David Hawking. -- 16 Library Systems / by Edie Rasmussen. -- 17 Digital Libraries / by Marcos Goņcalves. -- A Open Source Search Engines / with Christian Middleton. -- B Biographies . -- Bibliography . -- Index Ben shu lun shu xin xi jian suo de gai nian he ji shu,Zhei xie ji shu zai sou suo yin qing zhong de ying yong,Ji qi dui xiang guan ling yu zhi shi de ying xiang deng,Zhu yao nei rong bao kuo:yong hu jie mian she ji;Jing dian de xin xi jian suo mo xing,Jie guo zhi liang ping gu he yong hu xiang guan fan kui;Wen dang he cha xun gai nian ji qi xiang guan ji shu;Wen dang ji suo yin he sou suo ji shu;Web wen dang de pa qu,Jian suo he pai xu;Jie gou hua wen ben jian suo,Duo mei ti jian suo he qi ye sou suo;Tu shu guan xi tong he shu zi tu shu guan deng