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  • × classification_ss:"54.51 / Programmiermethodik"
  • × classification_ss:"54.32 / Rechnerkommunikation"
  1. Belew, R.K.: Finding out about : a cognitive perspective on search engine technology and the WWW (2001) 0.01
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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
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    Suchmaschine / World Wide Web / Information Retrieval
  2. Wendt, S.: Nichtphysikalische Grundlagen der Informationstechnik : interpretierte Formalismen (1991) 0.00
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    Abstract
    Informationstechnik wird im vorliegenden Werk umfassend als diejenige Technik verstanden, die der Speicherung, dem Transport und der Verarbeitung von Information dient. Im Gegensatz zu jeder sonstigen Technik, die ausschließlich vom Erkenntnisfundament der Physik getragen wird, benötigt die Informationstechnik zusätzlich ein nichtphysikalisches Erkenntnisfundament, welches man Informatik nennen kann, falls man diese nicht als die "Wissenschaft des Programmierens", sondern als die "Wissenschaft von den interpretierten Systemen" versteht. Die Machbarkeit informationstechnischer Systeme beruht auf der Formalisierbarkeit der Strukturen, die man bei der Analyse des menschlichen Kommunizierens und logischen Schließens findet. Diese informationellen Strukturen werden in den drei Kapiteln des Buches behandelt. Zuerst wird der Informationsbegriff und sein Umfeld - mit den Schwerpunkten Sprache und Logik - besprochen. Anschließend folgt die Betrachtung des Systembegriffs und seines Umfeldes, wobei die Modellierung im Mittelpunkt steht. Im letzten Kapitel werden die vorgestellten Begriffswelten zur umfassenden Begriffswelt der informationellen Systeme mit den Schwerpunkten Kommunikation und Programmierung integriert. Aus den Besprechungen: "...ein ungewöhnliches Lesevergnühen mit einem Technik-"Erzähler" hohen Ranges. Alle wesentlichen Grundphänomene der Informatik, die unmittelbaren Bezug auf die zugeordnete Elektrotechnik (die Informationstechnik) haben, werden ausführlich erörtert und ... auch für fachliche Laien schön verständlich abgehandelt. ... trotz der Eleganz der Präsentation ein sehr ernsthaftes Lehrbuch. ..."
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