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Date

23. 3.2008 19:10:22

Footnote

In 13 chapters, Part Two provides an introduction to KDD, an overview of data mining techniques, and examples of the usefulness of data model visualizations. The importance of visualization throughout the KDD process is stressed in many of the chapters. In particular, the need for measures of visualization effectiveness, benchmarking for identifying best practices, and the use of standardized sample data sets is convincingly presented. Many of the important data mining approaches are discussed in this complementary context. Cluster and outlier detection, classification techniques, and rule discovery algorithms are presented as the basic techniques common to the KDD process. The potential effectiveness of using visualization in the data modeling process are illustrated in chapters focused an using visualization for helping users understand the KDD process, ask questions and form hypotheses about their data, and evaluate the accuracy and veracity of their results. The 11 chapters of Part Three provide an overview of the KDD process and successful approaches to integrating KDD, data mining, and visualization in complementary domains. Rhodes (Chapter 21) begins this section with an excellent overview of the relation between the KDD process and data mining techniques. He states that the "primary goals of data mining are to describe the existing data and to predict the behavior or characteristics of future data of the same type" (p. 281). These goals are met by data mining tasks such as classification, regression, clustering, summarization, dependency modeling, and change or deviation detection. Subsequent chapters demonstrate how visualization can aid users in the interactive process of knowledge discovery by graphically representing the results from these iterative tasks. Finally, examples of the usefulness of integrating visualization and data mining tools in the domain of business, imagery and text mining, and massive data sets are provided. This text concludes with a thorough and useful 17-page index and lengthy yet integrating 17-page summary of the academic and industrial backgrounds of the contributing authors. A 16-page set of color inserts provide a better representation of the visualizations discussed, and a URL provided suggests that readers may view all the book's figures in color on-line, although as of this submission date it only provides access to a summary of the book and its contents. The overall contribution of this work is its focus an bridging two distinct areas of research, making it a valuable addition to the Morgan Kaufmann Series in Database Management Systems. The editors of this text have met their main goal of providing the first textbook integrating knowledge discovery, data mining, and visualization. Although it contributes greatly to our under- standing of the development and current state of the field, a major weakness of this text is that there is no concluding chapter to discuss the contributions of the sum of these contributed papers or give direction to possible future areas of research. "Integration of expertise between two different disciplines is a difficult process of communication and reeducation. Integrating data mining and visualization is particularly complex because each of these fields in itself must draw an a wide range of research experience" (p. 300). Although this work contributes to the crossdisciplinary communication needed to advance visualization in KDD, a more formal call for an interdisciplinary research agenda in a concluding chapter would have provided a more satisfying conclusion to a very good introductory text.

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Date

3. 3.2008 16:41:26

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Date

1. 3.2008 16:16:44

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Date

21. 3.2011 16:49:34

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Abstract

In diesem Handbuch steht die Nutzerorientierung im Vordergrund. Namhafte Autoren aus Wissenschaft und Praxis beschäftigen sich in 16 Kapiteln mit Web-Suchmaschinen, die die Vorreiter hinsichtlich des sich verändernden Nutzerverhaltens sind. Das bei Google und Co. erlernte Verhalten wird auf andere Suchsysteme übertragen: die Website-Suche, die Intranet-Suche und die Suche in Spezialsuchmaschinen und Fachdatenbanken. Für alle Anbieter von Informationssystemen wird es zunehmend wichtig, einerseits die Arbeitsweise von Suchmaschinen zu kennen, andererseits mit dem Verhalten Ihrer Nutzer vertraut zu sein. Auf der Seite der Wissenschaftler werden Informatiker, Informationswissenschaftler, Medienwissenschaftler und Bibliothekswissenschaftler angesprochen. Für Entwickler bietet dieses Handbuch einen Überblick über Möglichkeiten für Suchsysteme, gibt Anregungen für Umsetzung und zeigt anhand von bestehenden Lösungen, wie eine Umsetzung aussehen kann. Für Entscheider, Rechercheure und Informationsvermittler bietet das Buch lesbare Überblicksartikel zu relevanten Themenbereichen, auf deren Basis eine Strategie für individuelle Suchlösungen erarbeitet werden kann. Als dritte Praktiker gruppe sind u.a. Berater, Lehrer, Journalisten und Politiker zu nennen, die sich zu den wichtigsten Themen rund um die Suche informieren möchten.

Date

10. 5.2009 19:16:13