What is it about?
The purpose of this article is to provide a critical review of Bergman's study on the deep web. In addition, this study brings a new concept into the discussion, the academic invisible web (AIW). The paper defines the academic invisible web as consisting of all databases and collections relevant to academia but not searchable by the general‐purpose internet search engines. Indexing this part of the invisible web is central to scientific search engines. This paper provides an overview of approaches followed thus far. The article provides a discussion of measures and calculations, estimation based on informetric laws. Also gives a literature review on approaches for uncovering information from the invisible web. Bergman's size estimate of the invisible web is highly questionable. This paper demonstrates some major errors in the conceptual design of the Bergman paper. A new (raw) size estimate is given. The precision of this estimate is limited due to a small sample size and lack of reliable data. This study can show that no single library alone will be able to index the academic invisible web. The study suggests a collaboration to accomplish this task.
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Why is it important?
Provides library managers and those interested in developing academic search engines with data on the size and attributes of the Academic In-visible Web.
Read the Original
This page is a summary of: Exploring the academic invisible web, Library Hi Tech, October 2006, Emerald,
DOI: 10.1108/07378830610715392.
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Exploring the Academic Invisible Web: Das wissenschaftliche Invisible Web erkunden
Agenda: 1. Introduction 2. The (Academic) Invisible Web defined 3. The size of the (Academic) Invisible Web 4. AIW relevant to... 5. Opening the AIW – different models
Zugang zum Academic Invisible Web
Gliederung: 1. Definition des Academic Invisible Web 2. Größe und Inhalte des AIW 3. Wer erschließt das AIW?
SearchStudies: Prof. Dr. Dirk Lewandowski
Prof. Dr. Dirk Lewandowski is a professor of information research and information retrieval at the Hamburg University of Applied Sciences, Germany. He is the editor of Aslib Journal of Information Management (formerly: Aslib Proceedings), a ISI-ranked information science journal.
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