Examples of search engines and how they work

They can be categorized into groups depending on how they work.

Examples of search engines and how they work

Use each search term on each engine and record the results you get. You can save a copy of the webpage, or just take notes on how relevant the results are to your search.

Keep trying search terms, especially if you found what you were looking for the first time. What kinds of search terms always find relevant sites? Were there any results that were unexpected to you?

How did the search engines differ? Results Search engines are really good at looking for web pages that include a combination of words. Search terms that indicate something very specific may sometime yield desired results, but they can also fail to generate anything related to what you have in mind.

For search engines to dig through all the webpages on the internet, they use special program called a web crawler, also known as a spider. A web crawler goes to a webpage and follows every link it can find, and then searches the next webpage for more links, and on and on.

Its goal is to look at all the websites on the Internet and make a map for them. It then saves most of the text it sees as well as most of the pictures and some of the more data-intensive things such as video, depending on how it was programmed.

This process is called caching.

Examples of search engines and how they work

Once the web pages are cached, another program moves through them and indexes them. Indexing is much like what a librarian does. The program goes through every cached page and links it to any relevant item in the index.

Most of the time individual items point to multiple websites. Indexing makes it faster for a computer to look for a specific search term.

After everything is indexed, it is stored until a user searches for it. The engine then has to decide in which order to present these findings to the user.

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This is where relevancy and many of these secret algorithms come into play. One of the approaches to figuring out the correct order is to sort the matches by which ones people clicked on after typing in certain words and phrases.

Google was one of the first companies to use this approach.Links allow the search engines' automated robots, called "crawlers" or "spiders," to reach the many billions of interconnected documents on the web. Once the engines find these pages, they decipher the code from them and store selected pieces in massive databases, to be recalled later when needed for a search query.

Examples of search engines and how they work

Sep 08,  · Examples of Web Search Engines regardbouddhiste.com regardbouddhiste.com regardbouddhiste.com regardbouddhiste.com regardbouddhiste.com regardbouddhiste.com regardbouddhiste.com regardbouddhiste.com and many more There are actually many different search engines available out there.

They can be categorized into groups depending on how they work. Search engines have two major functions: crawling and building an index, and providing search users with a ranked list of the websites they've determined are the most relevant.

Imagine the World Wide Web as a network of stops in a big city subway system. Search engines each use their own software programs, but the way they work is pretty similar.

They all perform three tasks: First, they examine content they learn about and . Apr 05,  · The best job search engines are Indeed, Glassdoor, LinkedIn, and Google for Jobs.

Most of the top job search websites let you post a resume. They’ll also notify you when they find jobs that match your saved job searches/5(53).

So these are the best and most popular web search engines in the world. Among them, Google, Bing, and Yahoo are dominating the search engine market and been used by most people in the world. These three are the most popular and best search engines to use.

How Internet Search Engines Work | HowStuffWorks