Instructor How Search Engines Work The World W

NameCourseCourse InstructorDateHow Search Engines WorkThe World Wide Web has hundreds of millions of pages each with a wide range of topics. These pages are usually hosted in servers distributed all over the world. When interested in a particular topic one has to search the Worlds Wide Web. The application for doing this is known as Internet search engine. Internet search engines are special sites designed to assist people search and find information on other websites. The basic functions of the search engine can be divided into three activities.Search the internet or relevant section of the internet based on the key words Index the words found and their locationProvide feedback to the user on the words or their combinationsThe search engine employs software robots technically known as spiders to build a list of words found in the internet. The process of searching and building a list of keywords is called Web crawling. The spiders start web crawling from the seed URL. The seed URL good quality websites mostly hosted in the busiest servers and are linked to many high quality Web sites. The spider will index the words in the seed URL and follow every link emanating