Types of search engine, Basic Computer Science

Assignment Help:

Types of Search Engine:  

Some of the basic categories of Search engines are : 

a. Primary Search Engines: Such search engines use web crawlers or spiders to traverse the web and scan websites for key words, phrases, to generate database of web pages having some indexing or classification. Google and Alta Vista are examples of primary search engines. 

b. Web directory: Web directories organize information into categories and subcategories or directories. You can search a web directory for all those entries that contain a particular set of keywords. Directories differ from search engines in the way they organize information. Yahoo is an example of web directory. 

c. Meta search engines: Such search engines pass your queries to many search engines and web directories and present summarized results to the users. Some of the examples of meta search engines are - Dogpile, Infind, Metacrawler, Metafind and Metasearch.  


Related Discussions:- Types of search engine

What are anti-patterns, QUESTION Developers spend much more time extend...

QUESTION Developers spend much more time extending and changing code than they did originally while developing it. (a) As a team leader, illustrate how you will introduce to

Cmis, how much it cost for 8 week class

how much it cost for 8 week class

Powerpoint presentation of qualitative analysis approaches, Compare and con...

Compare and contrast two qualitative analysis approaches. You must select two that are a true contast eg  CAQADS (say leximancer ) v discourse analysis or thematic analysis by hand

C, Padovan sequence

Padovan sequence

Unix, How do I change file permissions? Every time I execute chmod commands...

How do I change file permissions? Every time I execute chmod commands it tells me permission denied.

Coaxial cables, Coaxial Cables: Another metallic transmission medium w...

Coaxial Cables: Another metallic transmission medium which offers a large bandwidth, is the coaxial cable. Such cables consist of an outer protective shell made of copper tube

Understanding human intelligence in social, Understanding human intelligenc...

Understanding human intelligence in social AI can be taken as just the current tool in the philosopher's toolbox for answering of questions for the behaviour of human intellig

Internal structure of agents - artificial intelligence, I n t e rnal St...

I n t e rnal Structure of Agents We have looked at agents in terms of their external influences and behaviors: they take input from the environment and perform rational act

What is Decode or execution cycle?, just the once the instruction has bee...

just the once the instruction has been fetched and is accumulated, the next step is to decode the instruction so as to work out what actions should be performed to execute it. This

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd