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  1. #1
    Registered User
    Join Date
    Jan 2019
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    531

    What are the 3 types of search engines?

    What are the 3 types of search engines?

  2. #2
    Registered User
    Join Date
    Dec 2018
    Posts
    637
    Hello Friends,

    Different Types of Search Engines

    Crawler based search engines
    Human powered directories
    Hybrid search engines

  3. #3
    Senior Member
    Join Date
    Mar 2020
    Posts
    275
    There are three types of Search engines:
    Crawler-based searches. There are four basic steps, every crawler-based search engines follow before displaying any sites in the search results. ...
    Human-powered directories. ...
    Hybrid searches.

  4. #4
    Senior Member
    Join Date
    Dec 2019
    Posts
    630
    Search engines are classified into the following three categories based on how it works.
    Crawler based search engines.
    Human powered directories.
    Hybrid search engines.
    Other special search engines.

  5. #5
    Senior Member
    Join Date
    Mar 2017
    Location
    Bangalore
    Posts
    250
    There are mainly three types of search engines

    Crawler based search engines
    Human powered directories
    Hybrid search engines
    Other special search engines

  6. #6
    Member
    Join Date
    Aug 2019
    Location
    London
    Posts
    30
    Search engines are classified into the following three categories based on how it works.

    • Crawler-based search engines: All crawler-based search engines use a crawler or bot or spider for crawling and indexing new content to the search database. There are four basic steps, every crawler-based search engines follow before displaying any sites in the search results. Crawling, Indexing, Calculating Relevancy and Retrieving the Result. Example are Google, Bing, and Yahoo!
    • Human-powered directories: Human-powered directories also referred to as open directory system depends on human-based activities for listings. Yahoo! Directory and DMOZ were perfect examples of human-powered directories.
    • Hybrid search engines: Hybrid Search Engines use both crawler-based and manual indexing for listing the sites in search results. Most of the crawler-based search engines like Google basically uses crawlers as a primary mechanism and human-powered directories as a secondary mechanism. For example, Google may take the description of a webpage from human-powered directories and show in the search results. As human-powered directories are disappearing, hybrid types are becoming more and more crawler-based search engines.
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