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پاورپوینت در مورد Internet Search Strategies

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پاورپوینت در مورد Internet Search Strategies

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تعداد اسلاید : 40 اسلاید

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1

Internet Search Strategies

© 2002 ATGCI

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Queries and Operators

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Queries

Queries are the combination of words and operators that we enter into search box of search engines and directories to show it what is our intention from the search.

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The Operators and Syntax in Boolean Searching

AND: terms on BOTH sides of this operator must be present somewhere in the document in order to be scored as a result

OR: terms on EITHER side of this operator are sufficient to be scored as a result

AND NOT: documents containing the term AFTER this operator are rejected from the results set

NEAR: similar to AND, only both terms have to be within a specified word distance from one another in order to be scored as a result

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