Search (5 results, page 1 of 1)

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Source

Password. 2000, H.5, S.22-31

Type

a

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Abstract

The World Wide Web is rapidly filling with more text than anyone could have imagined even a short time ago, but the task of isolating relevant parts of this vast information has become just that much more daunting. Richard Belew brings a cognitive perspective to the study of information retrieval as a discipline within computer science. He introduces the idea of Finding Out About (FDA) as the process of actively seeking out information relevant to a topic of interest and describes its many facets - ranging from creating a good characterization of what the user seeks, to what documents actually mean, to methods of inferring semantic clues about each document, to the problem of evaluating whether our search engines are performing as we have intended. Finding Out About explains how to build the tools that are useful for searching collections of text and other media. In the process it takes a close look at the properties of textual documents that do not become clear until very large collections of them are brought together and shows that the construction of effective search engines requires knowledge of the statistical and mathematical properties of linguistic phenomena, as well as an appreciation for the cognitive foundation we bring to the task as language users. The unique approach of this book is its even handling of the phenomena of both numbers and words, making it accessible to a wide audience. The textbook is usable in both undergraduate and graduate classes on information retrieval, library science, and computational linguistics. The text is accompanied by a CD-ROM that contains a hypertext version of the book, including additional topics and notes not present in the printed edition. In addition, the CD contains the full text of C.J. "Keith" van Rijsbergen's famous textbook, Information Retrieval (now out of print). Many active links from Belew's to van Rijsbergen's hypertexts help to unite the material. Several test corpora and indexing tools are provided, to support the design of your own search engine. Additional exercises using these corpora and code are available to instructors. Also supporting this book is a Web site that will include recent additions to the book, as well as links to sites of new topics and methods.

RSWK

Suchmaschine / World Wide Web / Information Retrieval

Subject

Suchmaschine / World Wide Web / Information Retrieval

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Signature

77 TWP 3911(2)+22

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Abstract

Das Internet entwickelt sich zunehmend zu einem Medium, das prinzipiell jedem Informationen aus allen Bereichen zugänglich macht, egal, ob es sich um Themen wie Recycling, Fussballbundesliga, Geldanlage oder Urlaubsreisen handelt. Durch die Fülle der zu durchsuchenden Daten übersteigt der Zeitaufwand für die Prüfung und Auswertung der Daten jedoch häufig den eigentlichen Nutzen der gesuchten Information. Genau hier setzt dieses Buch an, indem es systematisch die wichtigsten Hilfsmittel für die Informationssuche im Internet auf ihre Leistungsfähigkeit und Eignung bei der Suche beschreibt und bewertet. Außerdem werden Strategien zur richtigen Kombination von Suchhilfsmitteln vermittelt, Tips zur schnellen Beurteilung der gefundenen Informationen gegeben und Möglichkeiten beschrieben, wie man als Informationsanbieter im Internet gefunden werden kann

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Type

a