Section9.0 - Module 9 Introduction The last unit on search...

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Module 9 Introduction The last unit on search engines examines their effect on business and on society. The Web is a tremendous resource for learning about nearly any topic, and search engines provide the primary means to find what we want. Because we cannot wade through billions of pages, the ranked order in which search engines show us what s there provides invaluable assistance. However, it also serves as a filter and a screen, possibly distorting our views of what s known. In this last unit examining search engines we will read about: computer viruses and worms; web spam; business opportunities to exploit search engines powers; why new information may remain difficult to find. Unlike the other modules, this one does not include new algorithms and new computing skills. Instead, we ask you to reflect on the benefits and the potential dangers made possible by the technology.
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CS 100 Module 9 9.2 9.0 Web's Social and Business Impacts © 2009, University of Waterloo At the start of the last module, we asked: Among the billions of pages on the Web, which are the ones that should be returned to you when you pose a query? If hundreds or thousands of webpages contain most of the words from your query, which ones should be returned first and which should be further down in the list of results? The invaluable sifting and
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This note was uploaded on 02/04/2011 for the course CS 100 taught by Professor Bb during the Spring '11 term at University of Warsaw.

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Section9.0 - Module 9 Introduction The last unit on search...

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