Search (5 results, page 1 of 1)

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Date

23. 7.2017 13:49:22

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Abstract

Interested in how an efficient search engine works? Want to know what algorithms are used to rank resulting documents in response to user requests? The authors answer these and other key information on retrieval design and implementation questions is provided. This book is not yet another high level text. Instead, algorithms are thoroughly described, making this book ideally suited for both computer science students and practitioners who work on search-related applications. As stated in the foreword, this book provides a current, broad, and detailed overview of the field and is the only one that does so. Examples are used throughout to illustrate the algorithms. The authors explain how a query is ranked against a document collection using either a single or a combination of retrieval strategies, and how an assortment of utilities are integrated into the query processing scheme to improve these rankings. Methods for building and compressing text indexes, querying and retrieving documents in multiple languages, and using parallel or distributed processing to expedite the search are likewise described. This edition is a major expansion of the one published in 1998. Neuaufl. 2005: Besides updating the entire book with current techniques, it includes new sections on language models, cross-language information retrieval, peer-to-peer processing, XML search, mediators, and duplicate document detection.

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Abstract

Today's publishing infrastructure is rapidly changing. As electronic journals, digital libraries, collaboratories, logic servers, and other knowledge infrastructures emerge an the internet, the key aspects of this transformation need to be identified. Knowledge is becoming increasingly dynamic and integrated. Instead of writing self-contained articles, authors are turning to the new practice of embedding their findings into dynamic networks of knowledge. Here, the author details the implications that this transformation is having an the creation, dissemination and organization of academic knowledge. The author Shows that many established publishing principles need to be given up in order to facilitate this transformation. The text provides valuable insights for knowledge managers, designers of internet-based knowledge infrastructures, and professionals in the publishing industry. Researchers will find the scenarios and implications for research processes stimulating and thought-provoking.

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Content

Inhalt: Bawden, D.: Encountering on the road to serendip? Browsing in new information environments. - Slavic, A.: Classification revisited: a web of knowledge. - Vernitski, A. u. P. Rafferty: Approaches to fiction retrieval research, from theory to practice? - Inskip, C.: Music information retrieval research. - Peters, I.: Folksonomies, social tagging and information retrieval. - Kopak, R., L. Freund u. H. O'Brien: Digital information interaction as semantic navigation. - Thelwall, M.: Assessing web search engines: a webometric approach

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Footnote

Weitere Rez. in: ZfBB 56(2009) H.2, S.131-133 (J. Bertram): "Alles in allem gelingt es den Autoren aber, ein facettenreiches, umfassendes und detailliertes Bild der Wissensorganisation und -repräsentation zu zeichnen, das durch eine Fülle von Literatur fundiert und zugleich praxisorientiert ist. Die behandelten Inhalte gehen über Grundlagen erheblich hinaus. Dies ist einerseits eine Schwäche des Buchs, zugleich aber auch seine Stärke. Als Novize mag man mit ihm zu kämpfen haben, als Experte wird man viele wertvolle Anregungen finden und noch die eine oder andere Wissenslücke schließen können. Entlastendes bieten die Autoren zudem all denjenigen, die von der Wichtigkeit der von einigen bereits als Anachronismus abgeschriebenen Hierarchierelation überzeugt sind, geben sie dieser doch den ihr gebührenden Raum." Weitere Rez. in: IWP 60(2009) H.5, S.300 (R. Ferber); KO 36(2009) no.1, S.63-65 (V. Petras)