When they first met, they left a bad impression on each other. They think each other is arrogant and annoying. Their personalities are also very different. Brin likes to socialize, and Page is taciturn. The two of them had an in-depth conversation during their visit. Although they sometimes quarrel, they are also attracted by each other's talents.
After entering Stanford University, Page studied under Professor Terry ViNograd for a doctorate. Since Page's father is also a professor at the University of Michigan, he knows the importance of the doctoral program to his academic career. After careful consideration, he chose the World Wide Web, which was still in its infancy at that time, as his research direction.
Page's interest in the World Wide Web mainly focuses on its complex mathematical structure. In the World Wide Web, every computer is a node, and the link between two pages is a line connecting the two nodes. Page believes that the World Wide Web is the largest network created by human beings, which contains a lot of useful information. However, how to obtain this information is a difficult problem. With the consent of his tutor Professor Nograd, Page began to devote himself to this research.
During the research, Page found that it is very simple to link from one webpage to another, but it is not easy to link back from one webpage. In other words, when you are browsing a webpage, you don't know which webpages can link to it. Page believes that if this information can be obtained, it may be of great use.
When studying how to evaluate the value of a web Page, the family background of Page plays a role. He found that evaluating a web page is similar to evaluating an academic paper, which depends not only on the content, but also on the level of the articles cited by it and the level of the articles cited by it. For a web page, the cited article refers to the web page to which it links.
With this idea, Page established an experimental search engine BackRub. BackRub initially analyzed only 654.38+00 billion web pages. However, there are complex relationships among these 6.5438+million web pages, which have already gone beyond the scope of general doctoral programs.
1In March, 996, Page put BackRub on his personal homepage. At this time, Page didn't know that he had unconsciously established the first web crawling tool.
Because the experiment was extremely complicated, Page needed help from others, so Brin joined his team. Brin is a Russian immigrant. His father is a scientist from NASA and a professor at the University of Maryland. When he was 6 years old, his family immigrated to America. Brin has an amazing talent in mathematics, and algorithm research is his strong point.
Page and Brin * * * jointly developed a web rating system PageRank. The principle of this system is that when a link is made from page A to page B, PageRank thinks that "page A voted for page B". PageRank evaluates the importance of a web page according to the number of votes it receives. However, PageRank not only considers the number of pure votes (that is, the number of links) of web pages, but also needs to analyze the voted web pages. The votes cast by "important" pages will have higher weight, which will help to improve the "importance" of other pages.
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After that, Page and Brin improved the system, combining the web page level with the perfect text matching technology to make it perfect day by day. At this time, BackRub is already a very powerful search engine, and the search effect is far better than those that only use text matching technology. And because PageRank works according to web links, the more web pages, the better the search effect, which is just the opposite of other search engines.
With more and more people using BackRub search engine, Page and Brin realized the value of BackRub. They were eager to sell BackRub, but at that time, the major portals were very indifferent to this technology, so they decided to do it themselves. They named their search engine Google, which is a mathematical term meaning the number "1" followed by a hundred "0" numbers.
1September 1998, Google was born in a garage. Recalling the difficult course at the beginning of his business, Page expressed his gratitude to his alma mater, Stanford University. He said: "Stanford University has many far-sighted teachers and students who have provided selfless help to our cause." When Brin told his tutor about his business plan, the tutor was very supportive, saying that if his business was unsuccessful, he could come back to continue his studies, so both of them went through the formalities of suspension from school and concentrated on starting a business.
Page and Brin were reluctant to publish PageRank in order to prevent others from copying their own technology, but they published related works a few years later.