05_info_and_search

05_info_and_search - CS 6 Topic 5 Search and Information...

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CS 6 Topic 5 Search and Information Credibility
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Search
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• Vocabulary: o Query: your question o Search Engine : accesses database to give answer. o Crawler/Spider : programs the engine sends out to explore the web via links. o Page Rank : how important a page is, given the pages that link to it.
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Types of Questions • Three types of questions: o Joe Friday question. o Voyager question. o Deep Thought question.
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Types of Questions • Joe Friday: o What day is Labor Day? • Voyager Question: o I want to learn more about modern labor relations in America. • Deep Thought question: o Are unions still a good idea?
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Four types of Resources • General Search Engine : o Google, Yahoo, etc. • Specialized Search Engine : o LegalEngine.com (for lawyers, rulings) o thomas.loc.gov (Library of Congress) • Subject Tree : o ‘browsing Yahoo’ o About.com o dmoz.org open directory project
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Four Types of Resources • Clearinghouse: o Gathers articles and resources on a specific topic.
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05_info_and_search - CS 6 Topic 5 Search and Information...

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