search engine

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Prepared By:- NIRAV MEVCHA SEARCH ENGINE

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Post on 22-May-2015

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This PPT is related to how actually search engine works.

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Page 1: Search engine

Prepared By:- NIRAV MEVCHA

SEARCH ENGINE

Page 2: Search engine

Search engines are programs that search documents for specified keywords and

returns a list of the documents.

 A search engine is really a general class of programs.

A February 2012 Pew Internet survey finds that 91% of internet users use search

engines to find information on the web, up from 84% in June 2004.

Types of Search Engine:

Crawler-based search engines

Human-powered search engines

Page 3: Search engine
Page 4: Search engine

Crawler-based search engines are those that use automated software agents

that visit a Web site.

The crawler returns all that information back to a central depository, where

the data is indexed.

Human-powered search engines rely on humans to submit information that

is subsequently indexed and catalogued.

To obtain a high-ranking placement in the search results page, we have to

use search engine optimiser(SEO).

SEO is typically a set of "white hat" best practices that webmasters and Web

content producers follow to help them achieve a better ranking in search

engine results.

Page 5: Search engine

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