Basic need of search engines, Computer Engineering

Assignment Help:

Q. Basic need of Search Engines?

Search Engines are programs which search the web. Web is a big graph with pages being the nodes and hyperlinks being the arcs. Search engines collect all hyperlinks on each page they read, remove all the ones which have already been processed and save the rest. Web is then searched breadth-first, i.e. every link on page is followed and all the hyperlinks on all the pages pointed to are collected however they aren't traced in the order obtained. Automated search is the service which is provided by Search engines. An automated search service enables an individual to find information that resides on remote computers. Automated search systems use computer programs to find web pages that comprise information related to a given topic. It allows to locate:

  • Web pages which contain information about a particular product.
  • Web pages associated with a particular company or individual
  • Web pages which contain information about a particular topic.

Results of an automated search can be used immediately or stored in a file on disk to use it later. Results of a search are returned in the form of a web page that has a link to each of the items that was found. Automated search is helpful when a user wants to explore a new topic. Automated search produces a list of candidate pages which may contain information. The user reviews every page in the list to see whether contents are related to topic or not. If so, user records the location or if not user moves on to the page in the list. Search mechanisms uses a similar method of search as in telephone book i.e. before any user invoke search mechanism a computer program contacts computers on the Internet, gathers a list of available information, sorts the list and then stores result on a local disk on computer which runs a search server. When a user invokes a search, user client program which contacts the server. Client sends a request which contains the name the user entered. When request arrives at the server, it consults that list of file names on its local disk and provides the result.


Related Discussions:- Basic need of search engines

Define digital computers system, Q. Define Digital computers system? Di...

Q. Define Digital computers system? Digital computers, in general, are automatic machines that accept data and instructions, perform predefined operations very quickly on the d

Advantages of specifying parameter assignment using defparam, State The adv...

State The advantages of specifying parameter assignments using defparam are: - This method always has precedence over specifying parameters at the instance of instantiation.

The average height or weight, A script kept information on potential subjec...

A script kept information on potential subjects for an experiment in a vector of structures known as "subjects".  The following show an example of what the contents may be: >> subj

What is parsing in grammatical structure, What is Parsing? Parsing: ...

What is Parsing? Parsing: It is the process of analyzing a text, made of an order of tokens, to find out its grammatical structure regarding a given formal grammar. Parsing

IEEE802, 1. (a) Given a baseband bus with station 1 located at 10m, station...

1. (a) Given a baseband bus with station 1 located at 10m, station 2 located at 1000m, and station 3 located at 1010 meters (see diagram above). If the data rate of the bus is 10 M

Illustrate 16-bit isa, Illustrate 16-bit ISA?  Compare it with 8-bit ISA bu...

Illustrate 16-bit ISA?  Compare it with 8-bit ISA bus.  The only difference between 8 and 16-bit ISA bus is that an extra connector is attached behind the 8-bit connector. 16-b

Appropriate problems for ann learning, Appropriate Problems for ANN learnin...

Appropriate Problems for ANN learning: Conversely as we did for decision trees there it's important to know where ANNs are the right representation scheme for such job. Howeve

Illustrate the term extranet, Illustrate the term Extranet? Extranet:...

Illustrate the term Extranet? Extranet: Extranet is Extension of an Intranet that makes thelatter accessible to outside companies or individuals with or without an intran

Macroscopic and microscopic approaches - thermodynamics, Macroscopic and Mi...

Macroscopic and Microscopic approaches - Thermodynamics: Thermodynamic studies are undertaken by following two different approaches.  l. Macroscopic approach (Macro mean big)

Computer networks, distributed & centralized system in computer network

distributed & centralized system in computer network

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