After the dinner, Zhang Yuan returned to his room in a hurry and opened his personal tablet. There is an idea left by my dad on it - "A New Community Discovery Algorithm".

The ideas left by Daddy are very innovative.

After half an hour of pondering, Zhang Yuan was surprised to find that this community found that the algorithm can be used very appropriately for turbulence problems!

"Can it be used?"

A scorching flame rises from my heart!

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

The nodes in the network can be divided into small groups, and the connections between the nodes in the group are relatively dense, and these dense node groups are called a community structure.

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

It will be much less difficult to analyze and study individual societies.

"However, after the analysis of individual communities, how can the data be combined?"

Without analyzing the whole, the value of the algorithm is not very great.

This problem is very confusing and wants to solve it, the difficulty is unknown.

Zhang Yuan's brows furrowed tightly, and for a while, he didn't have too good ideas.

Now, there are two paths in front of Zhang Yuan, first, copy his father's inspiration, sort out this "community discovery algorithm in a complex network", and write a good article.

According to his current understanding, this article is not a problem to be published in a top journal in the first district, and it is more than enough to be used as a graduation thesis.

The second direction is to continue to solve the turbulence problem and integrate this "community discovery algorithm" into a small part of the paper.

But if the subsequent part is handled badly, this good idea will be in vain.

"How do you choose?"

Zhang Yuan pondered for a moment, his face cloudy, and finally let out a long sigh.

He found that deep down, he still wanted to choose the second path, and he really didn't want to copy his father's ideas again—even though those were the articles that his father was willing to give him.

Money?

Reputation?

He doesn't need any of that now.

Zhang Yuan reopened his father's photo, and the memories of the past 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 flows like water, day and night.

As the communication delay increases, communication with the Earth side becomes more and more difficult, and the atmosphere inside the spacecraft is slowly becoming oppressive. There are also significantly fewer people chatting on the side of the road and exercising in the gym.

Everyone goes to work after eating, and goes to bed after work, as if only by being busy can they forget those troubles.

Whether you want to or not, people have to adapt to this universe.

Zhang Yuan's hot spot finally passed, and the Falls' wealth list was changed to federal currency denomination again. A few more newcomers popped up from the list, but they didn't make much of a splash.

Everyone is only interested in the first Mr. 100 million, and there is not much interest in the second and third ones.

Money on Earth is not money that can be used on a spaceship. It's just a number, and if you look at it too much, you won't feel much of it.

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

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

"Nickname Outside! The ranking of Xingchen University has officially entered the 500th place in all mankind! ”

"Our Deep Space University has been killed in seconds. The 1000th place in all mankind can't get in! Ye Kaifu's news is PHS, and the first thing he said when he met was this.

He said with a sad face: "Master Zhang, as a graduate student of Deep Space University, you have to do something." My teacher urged me to post papers all day long, which was really annoying. ”

Zhang Yuan was shocked, "The ranking of Deep Space University can't go up, you can't blame me...... What about the professors? ”

"The professors are busy debugging the spacecraft, where do they have time to write papers? Such a big spaceship! ”

"Wait a minute, Star University has good results again? They can't make the medicine, so awesome? ”

"I'll forward it to you."

There was a guy named Zhang Yingbo who wrote an innovative paper on "light condensation technology" and caused a small sensation.

Light condensation is currently a hot topic in research, and its principle is to intertwine light waves so that they stop in their inherent orbits. This trick relies on adjusting the light waves so that they meet at so-called "exception points".

With this principle, people are able to use lasers to send and store information.

Zhang Yuan read it with relish for a long time and was amazed by the innovativeness of this paper. He couldn't figure out how Zhang Yingbo could write such a paper when the experimental conditions were so poor.

And a few days ago, a boy named Xiao Weixing wrote a paper on "photocatalyst", because there are too many professional terms involved, and Zhang Yuan can't understand it very well, so he can't evaluate it.

Anyway, the response from the industry has been good.

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

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

This guy is still from Stellar University!

The 20s are the most whimsical age, and the fierce competition has also caused Zhang Yuan's ranking to gradually decline, all the way down to more than 100.

"Zhang Daba, aren't you doing turbulence? One turbulence can kill them all! Ye Kaifu said ill-intentionedly.

Zhang Yuan made a bitter face, "Go and go, do you think this problem is so easy to do?" ”

"Aren't you the number one in your major? I'm just a weak chicken, and in the past eight months, I only have one paper...... Rank 233. ”

Zhang Yuan suddenly realized that this Ye Kaifu was here to pull hatred. He has not published papers for so long, and he is about to be caught up by Ye Kaifu.

Zhang Yuan couldn't help but feel a little annoyed, but he had to stick to the topic he chose no matter what, "Are you so sure I can't do it?" I'm telling you, you lean over ......."

"I grasped the true essence of the turbulence problem and created an equation called the leaf-equation, which is like this, and its vector form is =-Ñp+ρF+μΔv......"

"What?! Really? ”

Swallowing and spitting, Ye Kaifu felt that his heartbeat had stopped. Although he didn't understand it well, he knew the importance of the turbulence problem deeply. Moreover, as long as you don't understand, even if the other party is talking nonsense, it's okay!

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

"Ye Kaifu equation, because of your spur just now, gave me the motivation to move forward and gave me the determination to continue, so if I really make results, call it Ye Kaifu equation."

Ye Kaifu suddenly realized, he immediately smiled and said, "That's okay!" In order to show my gratitude, all the machines I repaired in the future, including the mobile phones that various girls repaired for me, are all secretly engraved with your Zhang Yuan's name, how about it? ”

"You dare!"