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

Characteristics of extreme unencoded micro-instructions, Q. Characteristics...

Q. Characteristics of extreme unencoded micro-instructions? 1. Two sources can be attached by respective control signals to a single destination; though only one of these sourc

What is remote login, Remote Login  A login that permits a user termina...

Remote Login  A login that permits a user terminal to connect to a host computer by a network or direct telecommunications link, and to interact with that host computer as if t

Elaborate state space search briefly, Artificial Intelligence 1. Explai...

Artificial Intelligence 1. Explain about artificial intelligence? What are the achievements of AI? 2. Elaborate state space search briefly. 3. Prove that A* is optimal.

Fuzzy logic - artificial intelligence, Fuzzy set theory provides a means fo...

Fuzzy set theory provides a means for modeling the kind of uncertainty associated with vagueness, with imprecision, and/or with a lack of information regarding a particular element

What do you mean by complexity of an algorithm, What do you mean by complex...

What do you mean by complexity of an algorithm? The term complexity is used to define the performance of an algorithm. Typically performance is calculated in terms of time or s

Bounded rationality in decision making, Q.What do you mean by the term 'bou...

Q.What do you mean by the term 'bounded rationality in decision making'? Maximizing the outcomes of a decision is an ideal stage. Habitually it is an impossible thing. The caus

Determine the types of sensors, Determine the types of Sensors Differe...

Determine the types of Sensors Different types of sensors are used to give real time information to computers. Frequently, an analogue to digital converter (ADC) is required a

How do active web pages work, How do active web pages work? Describe with a...

How do active web pages work? Describe with a small example. Active Web Pages: An active document is not completely specified through the server. Instead an active documen

What are the "field" and "chain" statements, What are the "field" and "chai...

What are the "field" and "chain" Statements? The FIELD and CHAIN flow logic statements let you Program your own checks. FIELD and CHAIN tell the system which fields you are ch

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