The Millennium Semiconductor Survival Guide.

Chapter 74 Robin's Quora First Experience (for further reading))

"Thanks to @Jimmy Wales for the invitation, as the founder of Quora, I thought it was necessary for me to answer this question.

The channels for people to obtain knowledge are constantly increasing. At first, they obtained knowledge from teachers, and later they obtained knowledge from books. In modern times, we rely more and more on obtaining knowledge from the Internet, such as search engines.

After starting the Riot Electronics community, I saw a lot of posts on it that players had various questions about the game, such as which race is the strongest for the enduring posts on the StarCraft board, and how each race starts the best start .

Including the "Plants vs. Zombies" we launched, newcomers often ask questions, hoping to know how to configure plants in some difficult levels to pass the level smoothly.

So I came up with an idea, that is, whether it is possible to build a community that focuses on answering questions, so that everyone's knowledge can converge here.

When I had this idea, I had to choose a partner. I have other companies that don't have the energy to do this.At that time I heard that there were people in Silicon Valley who had a similar idea to me, and that person was @Jimmy Wales and @Lawrence Sanger.

They tried to build an online encyclopedia Nupedia to solve this problem, but Nupedia's progress was slow. When I found them, they heard my idea and thought that the knowledge question and answer community is a better solution than an online encyclopedia. The solution to this problem.

So after the two joined, the development of Quora entered a fast lane.

Users can ask questions, answer questions, edit and rate questions and answers on Quora, and follow specific topics or other users.

Jimmy Wells and Larry Sanger felt frustrated and suspicious. After Zhou Xin found them, the three hit it off. The knowledge quiz community can not only achieve what they want to do, but also have higher commercial value.

The perspective returns to Robin. As a master of computer science at the State University of New York, Robin was very concerned about technology in the early days. After he entered the computer subdivision field, he found that there were various problems in it.

We assign a numerical weight to each element of a collection of hyperlinked documents in order to "measure" its relative importance in the collection.The algorithm can be applied to any collection of entities that have mutual references and references.The numerical weight it assigns to any given element E is called the PageRank of E, denoted as PR(E).

Originally, Zhou Xin also planned to package online encyclopedia and Quora into one enterprise, and the users of these two were free labor for online encyclopedia.

More importantly, the two worked on Nupedia before and accumulated a large number of academic contacts.

Zhou Xin's answer received hundreds of likes, and it is the answer with the most likes under this question.

Jimmy Wales and Lawrence Sanger mentioned in Zhou Xin's answer should have been the founders of Wikipedia.

Through this service, he also has a certain influence among college students.

For Zhou Xin, not to mention the fact that the two founded Wikipedia, the fact that they were able to set up Wikipedia has fully proved their management ability.

Our feature is that users can vote, comment and edit answers to ensure high-quality content is seen by more people.

PageRank is derived from a webgraph-based mathematical algorithm created with all World Wide Web pages as nodes and hyperlinks as edges, taking into account authoritative centers such as cnn.com or mayoclinic.org.Rank values ​​indicate the importance of a particular page.Hyperlinks to pages count as support tickets.The PageRank of a page is defined recursively, depending on the number of all pages linking to it ("incoming links") and the PageRank metric.Pages that are linked to by many pages with high PageRank will rank highly themselves.”

Zhou Xin's plan for Quora is that the initial users will be mainly students and university professors, followed by Internet practitioners and Internet bosses in Silicon Valley.

The academic experts that Zhou Xin met were all concentrated in the field of integrated circuits. The two of them were different, and the academic experts they knew were all over the field.

Nupedia can be regarded as a journal with a lower threshold, and because of this, the progress of this work is very slow.

They are engaged in the predecessor of wiki, Nupedia Encyclopedia, which is a purely academic-oriented online encyclopedia, all written by experts and scholars, and must undergo strict review and review after writing.

Robin thinks it's very creative, "It's Newman's idea again. Below the questions, you can choose to sort by the number of approvals or answer time, which not only allows users to see high-quality answers, but also allows users to see the latest answers.

"I'm a freshman majoring in computer science, but I haven't had any fun in computer learning, what should I do?"

Zhou Xin's reputation in Silicon Valley alone has never failed since he started his business, and his valuations are all in billions of dollars.Moreover, Zhou Xin has a good reputation in Silicon Valley and is willing to share shares. Whether it is the earliest Ashley and Stephen, or NewPay's von Louis and Warren Jensen, they all got shares.

"Why is the DSL service model faster than the traditional dial-up connection?"

Colleagues are friends, Robin knows each other, everyone is engaged in search engines, and their PageRank algorithm is very similar to the algorithm he invented.

This answer is quite professional, Robin glanced at the ID of the respondent, Sergey Brin.

When designing this algorithm, we mainly considered the quality and quantity of links, and used the relationship between these links to construct a link map between web pages, so as to sort the web pages.

In addition, Larry Sanger set up a mailing list server during college to establish a communication platform for students and tutors who need tutoring, and to establish a forum to provide personalized tutoring courses and personalized tutoring methods.

Of course, there are also very professional questions, such as "What are the advantages of the PageRank algorithm?"

At the same time, the design of both is ingenious enough. "

"The PageRank algorithm provides a brand-new idea for the ranking algorithm of search engines.

In addition, the direction of Quora and the online encyclopedia have a high degree of overlap, so Jimmy Wells and Larry Sanger agreed to join Quora without hesitation.

As for the two who knew about Zhou Xin's idea, they would leave Zhou Xin behind to do it on their own, not to mention that Quora's website framework and beta version had already been made, and they were far behind in terms of time to do it alone.

Finally, I hope you can have a good time here. "

And Quora has strict community guidelines and management measures to prevent abuse and spam.With the example of the fist electronic community in front, you can fully believe in our ability to manage a high-quality community.

Robin's site scoring algorithm for IDD is the earliest algorithm that uses hyperlinks to measure search quality.

Robin couldn't help but also wrote the answer below: "PageRank has a place to learn from Rankdex site scoring algorithm."

　The release time is either this Friday or next Friday.

　　The last follow-up is very important to the author, please!

　　
　
(End of this chapter)