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

Education and society, mention the aims of education in present scenario

mention the aims of education in present scenario

Discuss about xpointer, Question 1 How PHP works? Explain the structure of...

Question 1 How PHP works? Explain the structure of PHP Question 2 Write a note on links and webs Question 3 Explain why do you need Document Type Definition (DTD)?

What is electrical energy, the chemical reactions in a battery produce ____...

the chemical reactions in a battery produce ____________, each of which carries energy.

How to avoid race conditions with critical section?, • The key to preventi...

• The key to preventing problem involving shared storage is get some way to prohibit more than one process from reading and writing the shared data concurrently. That part of the p

Iterative deepening search-artificial intelligence, Iterative Deepening Sea...

Iterative Deepening Search- Artificial intelligence: So, breadth first search is guaranteed to find a solution (if one exists), but it grape whole memory. However, Depth first

How to crack a password, how can i crack the password of vmware virtual mac...

how can i crack the password of vmware virtual machine

Determine recursive c function computes, QUESTION (a) Give the two cond...

QUESTION (a) Give the two conditions required by a binary tree of depth d to be an almost complete binary tree. (b) Determine what the following recursive C function compute

Explain the concept of a transition graph, Question 1 Define the concept o...

Question 1 Define the concept of equivalence relation. Give atleast two examples of equivalence relation Question 2 Prove that a graph G is connected if and only if it has a

Some CPUs provide multiple modes of operation, even though most systems onl...

even though most systems only distinguish among user and kernel modes, some CPUs provide multiple modes. Multiple modes could be used to provide a finer-grained security strategy.

Assembly Language Project, Our instructor gave us a project in making a mec...

Our instructor gave us a project in making a mechanical game or simple device using assembly language, can anyone give me a an example of a project description for our proposal?

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