Evolution of the Search Engine Techniques

  • November 18, 2015
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In today’s age, search engine and the techniques they employ have revolutionized the way the people live their lives. From banking to shopping to meeting new people online, the internet search algorithms enable it to take users query and return accurate results amidst a vast data information mine. Since their early prototypes, the technology that search engines employ have evolved. Improvements are seen in web crawlers, categorizing and indexing the webpage and new protocols called robots. Want to know more? Just continue reading….

–> The first search engine named “Archie” came into existence in the year 1990. It was a primitive search engine that comprised of a database of archived file names, which it would try to match with users’ queries.

–> Introduction of “robots” in the search engine “World Wide Web Wanderer” is considered the next step in revolutionizing search engine technique. Robots are automated data retrieval programs that scan the internet for URL’s information and links. However, if not written properly robots lowered the system performance.

–> In the year 1993, “aliweb”,  web directories came out to combat problems associated with robots. These web directories comprised of  sites listed from human editors, who used to review sites and place them in the directory unlike automated robots.

–> In the same year a new robot was born called “spider”. Unlike the older robots that only indexed the url and titles of a page, spider indexed the entire webpage. This robot spider greatly improved the relevancy ranking of the results by ensuring that some pertinent keywords were not missing from indexing.

–> In the year 1994, Yahoo  became the most popular web directory wherein humans manually placed websites into their index. In the same year, “AltaVista” emerged as the fastest growing search engine. It used the spider technology where results were ranked by keyword relevancy. While yahoo was indexing about 1 percent of the internet, altavista was indexing near about 10 million webpages  a day.

–> Then in late 1997, Google came out employing a very different search engine technique called  PageRank system.  Google PageRank technique works by counting the number and quality of links pointing  to a web page. It makes  a rough estimate of how important is the website based on how many links are pointing to the  particular website. Now Google is considered as the most popular search engine around the globe.

Thus with the advent of new search engine techniques, let’s wait to see what is the future search engines and how it will affect the lives of 9 billion people.

 

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