Search Engine
The “Search Engine” plays a vital role in our “Internet” work. The “Search Engine” refers to a “Software System” that is set up to “Search” for “Internet Information” on the “World Wide Web (WWW)”. Usually, “Search Results” are accessible in a line of results often referred to as “Search Engine Results Pages (SERPs)” in the “Internet”. The information may be a specialist in Information, Web Pages, Images, and other types of Files in the “Internet”. So, you should know about the “Search Engine” for doing the “Internet” work in your Computer.
History of Search Engines
The “Google” launched in 1998 from a small “Search Engine Company” named “goto.com”. Around 2000, “Google’s Search Engine” rose to reputation. The “Google” achieved better results for many “Searches” with an improvement called “Page Rank”. It is known as “Google Page Rank”. “Google” analysis to a “Website” by using its “Search Engine”. This iterative “Algorithm” ranks “Website Pages” based on the “Number” and “Page Rank” of “Other Websites” and “Pages” that link there. Good or desirable “Website Pages” are linked to more than others. “Google” also maintained a simple interface to its “Search Engine”. In fact, “Google Search Engine” became so popular within a short time to all over the World.
By 2000, “Yahoo!” was providing “Search Services” based on “Inktomi’s Search Engine”. “Yahoo!” acquired Inktomi in 2002 and Overture (which owned AlltheWeb and AltaVista) in 2003. “Yahoo!” switched to “Google’s Search Engine” in 2004. It launched its own “Search Engine” based on the combined technologies of its acquisitions.
Microsoft’s re-branded “Search Engine Bing” launched on June 1, 2009. On July 29, 2009, “Yahoo!” and “Microsoft Company” finalized a deal wherein “Yahoo! Search” would be powered by “Microsoft Bing Technology”.
“Microsoft Company” first launched the search Engine MSN Search” in 1998 using “Search Results” from “Inktomi”. In 1999 the “MSN Search” began to display listings from Look Smart, blended with results from “Inktomi”. In 1999, “MSN Search” used results from “AltaVista” were instead. In 2004, “Microsoft Company” began a transition to its own “Search Technology” which is powered by its own Web Crawler (Known as “msnbot”).
Ask.com founded in 1996. Usually, “Natural Language Queries” allows the “Internet User” to “Type a Question” in the same form where one would ask it to a human.
“Baidu, Inc.” established on January 18, 2000. It is a “Chinese Website Services Company” headquartered in the “Baidu Campus” in “Haidian District” in “Beijing”. “Baidu” offers many services including a “Chinese Language Search Engine for Websites, Audio Files, Images etc. “Baidu” was established in 2000 by “Robin Li” and “Eric Xu”. Both cofounders are “Chinese Nationals” who studied and worked overseas before returning to “China”.
Features of search engine
a) Using Software System
The “Search Engine” refers to a “Software System” that is set up to “Search” for “Internet Information” on the “World Wide Web (WWW)”.
b) Search engine results pages (SERPs)
Usually, “Search Results” are accessible in a line of results often referred to as “Search Engine Results Pages (SERPs)” in the “Internet”.
c) Types of search engine result
The information may be a specialist in “Information, Web Pages, Images and other types of Files” in the “Internet”.
d) Available data in Databases
Sometimes, “Search Engine’s Mine Data” are also available in “Databases” or “Open Directories”.
e) Boolean operators to specify a search query
Most “Search Engines” support the use of the “Boolean” operators “AND, OR and NOT” to further specify the “Search Query”. “Boolean” operators are for literal searches that allow the “Internet User” to refine and extend the terms of the “Search”. The “Search Engine” looks for the “Words” or “Phrases” exactly as entered by the “Internet User”.
f) Advanced Search option
Sometimes, “Search Engines” provide an advanced facility called “Proximity Search”. It allows “Internet Users” to define the distance between “Keywords”. The concept-based searching where the research involves using “Statistical Analysis” on “Website Pages” containing the “Words” or “Phrases” that you “Search” for.
g) Relevance of result
The effectiveness of a “Search Engine” depends on the “Relevance” of the “Result Set” it gives back. There may be Billions of “Website Pages” that include a particular “Word” or “Phrase” where some “Website Pages” may be more relevant, popular, or reliable than others. Most “Search Engines” use methods to “Rank” the results to provide the “Greatest Results” first. How a “Search Engine” decides which “Website Pages” are the best matches and what category the results should be revealed in. It varies widely from one “Search Engine” to another “Search Engine”.
h) Search engine methods
The “Search Engine Methods” also change any time as “Internet” usage changes and new techniques are developed for “Search Engine”. There are two main types of “Search Engine” that have been developed. The first one is a system of predefined and hierarchically ordered keywords that humans have programmed extensively. The other one is a system that generates an “inverted index” by analyzing “Website Texts” it locates.
i) Search-related ads
Most “Web Search Engines” are “Commercial Ventures” supported by “Advertising Revenue”. Some of them allow “Advertisers” to have their listings “Ranked Higher” in “Search Results” for a “Fee”. Usually, “Search Engines” that do not accept money for their “Search Results” make money by running “Search Related Ads” beside the regular “Search Engine Results”. The “Search Engines” make money every time someone “Clicks” on one of these “Search Related Ads”.
j) Search engine competition
Usually, most of the “Search Engines” appear and compete for popularity.
