Chapter 93

After the dinner, Zhang Yuan hurriedly returned to his room and opened his personal tablet. There is an idea left by my father - "a new community discovery algorithm".

The ideas left by dad are very innovative.

After half an hour of thinking, Zhang Yuan was surprised to find that this community discovery algorithm can be very suitable for turbulence problems!

"Can I use it?"

A hot flame rises from the heart!

Community discovery is a very classic problem in graph theory, especially in complex networks. It is a major research focus in informatics.

The nodes in the network can be divided into groups. The connections between the nodes in the group are dense. These dense node groups are called a community structure.

According to Zhang Yuan's intuitive idea, a turbulence can be regarded as a complete community structure.

It will be much less difficult to analyze and study a single community.

"However, after the analysis of a single community is clear, how can the data be combined?"

Can not analyze the whole, the value of the algorithm is not very great.

This problem is very confusing. The difficulty of solving it is unknown.

Zhang Yuan frowned tightly for a while and a half. He didn't have a good idea.

Now, two roads are in front of Zhang Yuan. According to his current understanding, this article is not a problem to be published in the top journals in the first district. It is more than enough to be used as a graduation thesis.

Money?

Reputation?

He doesn't need these now.

Zhang Yuan opened his father's photo again. His past memory seemed to be plated with a layer of golden light after the baptism of time.

Zhang Yuan said in a low voice, "father, thank you."

……

Time, like running water, passes day and night.

With the increase of communication delay, communication with the earth has become more and more difficult, and the atmosphere in the spacecraft is slowly becoming depressed. There are fewer people chatting on the roadside and exercising in the gym.

We work after dinner and sleep after work. It seems that only when we are busy can we forget those troubles.

Like it or not, people have to adapt to the universe.

Zhang Yuan's hot spot has finally passed, and the falls wealth list has been changed to federal currency. Several more newcomers emerged from the list, but there was no big splash.

We are only interested in the first 100 million yuan, but not in the second and third.

Money on earth is not money that can be used on a spaceship. It's just a number. If you read too much, you won't feel much.

However, the competition in the academic list is very fierce, and the first place has changed several times in a row.

The truth in the universe, in this small society, began to become more eye-catching.

"Outside the nickname! The ranking of star university has officially entered the 500th place of all mankind! "

"Our deep space university has been killed. The 1000th place of all mankind can't get in! " Ye Kaifu is a PHS. That's the first thing we said when we met.

He said with a sad face, "young master Zhang, as a graduate student of Deep Space University, you have to do something. My teacher urges me to send papers all day. It's really annoying. "

Zhang Yuan was surprised. "I can't blame the ranking of Deep Space University... What about the professors?"

"The professors are busy debugging the spacecraft. Where are they free to write papers? Such a big ship! "

"Wait a minute, does star University have good results? They can't do it after taking drugs, so awesome? "

"I'll forward it to you."

A guy named Zhang Yingbo wrote an innovative paper on "light stagnation technology", which caused a small sensation.

Light stagnation is a hot research topic at present. Its principle is to interleave light waves to make them stop on the natural orbit. This technique relies on adjusting the light waves so that they meet at the so-called "exception point".

With this principle, people can use laser to send and store information.

Zhang Yuan read it with interest for a long time and marveled at the innovation of this paper. He was a little confused about how Zhang Yingbo wrote such a paper when the experimental conditions were so poor.

A few days ago, a boy named Xiao Weixing wrote a paper on "Photocatalyst". Because there are too many professional terms involved, Zhang Yuan can't understand it and can't evaluate it.

Anyway, the industry has a good response.

By the way, this guy is also from star University.

There is also a paper on "gene matching", written by a female student named Gina, which explores the mutual selection between genes from the perspective of big data, and the mathematical model is quite good.

This guy is from star University!

The age of more than 20 is the most imaginative age. The fierce competition also led to Zhang Yuan's ranking gradually falling down to more than 100 all the way.

"Zhang Xueba, aren't you doing turbulence? One turbulence can kill them all! " Ye Kaifu said maliciously.

Zhang Yuan said bitterly, "go, do you think this problem is so easy to do?"

"Aren't you the first in your major? I'm just a weak chicken. In these eight months, there's only one paper... Ranking 233. "

Zhang Yuan suddenly realized that ye Kaifu came to pull hatred. He hasn't published his paper for such a long time, and ye Kaifu is about to catch up with him.

Zhang Yuan couldn't help being a little angry, but he had to stick to the topic he chose anyway, "are you so sure I can't do it? I tell you, lean over... "

"I mastered the real essence of turbulence problem and created an equation called leaf equation. Specifically, its vector form is = - Ñ P+ ρ F+ μΔ v……”

"What?! True or false? "

After swallowing and spitting, ye Kaifu felt his heart stop beating. Although he didn't quite understand it, he was deeply aware of the importance of turbulence. Moreover, as long as you don't understand, even if the other party talks nonsense, there's no way!

"Wait a minute, why is it called leaf equation?"

"Ye Kaifu equation, because your encouragement just now gives me the motivation to move forward and gives me the determination to continue. If I really make achievements, I will call it Ye Kaifu equation."

Ye Kaifu suddenly realized that he immediately smiled and said, "all right! In order to show my gratitude, all the machines I repaired in the future, including all kinds of mobile phones repaired by girls, are secretly engraved with your Zhang Yuan's name. How about it? "

"You dare!"