Hammer of Technology

If you lose interest in mathematics in the middle, you may also be diverted to other majors, and you will automatically lose the qualification for continuous undergraduate, master, and doctoral studies.

In short, this summer vacation has basically finalized Ningwei's teaching plan for the next five years, and the only problem is probably the selection of candidates.Tian Yanzhen also talked with Ning Weishen about this. For doctoral supervisors, many students need to be supported, so projects are needed, and supervisors can’t afford to support students by themselves; It is also the best, which means that there are bonuses for publishing papers.

Of course, this is the most ideal situation, but the deep-seated contradiction is that the tutor is afraid of choosing the wrong student, and the student is even more afraid of choosing the wrong tutor.

For an honest tutor, it is definitely a headache if the student is not selected well, cannot endure hardship, or has psychological problems.He refuses to contribute to important projects, or works hard, and the assigned tasks cannot be completed, so he can only be shared by other seniors. When it is time to graduate, he messes around and even threatens his tutor. In the end, the tutor has to compromise or even revise the thesis by himself, just want to hurry Needless to say how bitter the teacher who sent this student away felt.

For honest students, it is extremely sad that the tutor is not selected well.There is no money for a white job, and the graduation project may be made difficult, and life is even more laborious. After graduation, the tutor can't help much. After a few years, I will be depressed after a few years.

Fortunately, there are not many such situations in Yanbei University. After all, most of the tutors who can lead graduate students in Yanbei University are already big names in the industry, with relatively rich resources, so they will not bully students too much; Most graduate students and doctoral students in universities also have two brushes, and they are more ambitious, so they don't just want to get a diploma.

But when the forest is big, there are all kinds of birds. Even Yanbei University has the kind of students who just want to get a diploma, or the kind of students who lower their standards after passing the exam. This is a very headache for the instructor.

As for Ning Wei, he is definitely not too afraid of being threatened by students, because Ning Wei's current status is not the same as that of ordinary doctoral supervisors, but at least in four years, Ningwei is only willing to supervise five master's and doctoral students, and the doctoral supervisor recruits students again and again. It is something that can be very selfish. Tian Yanzhen is afraid that Ning Wei is too casual when picking students, and wastes time for nothing.

In fact, if Ning Wei is willing, Tian Yan really wants to give Ning Wei ten places directly.No way, Ning Wei directly created a new set of theories. Now the whole world is familiar with this set of theories, probably no more than two slaps. Even if most of them are concentrated in China, it is not enough. There is a shortage of talents in this direction. Naturally, the more the better.

Not only Ning Wei, but also Lu Dongyi was asked by Tian Yanzhen this year to lead at least three graduate students in the next year, focusing on the basic direction of artificial intelligence mathematics.

Of course, this is only discussed in advance, and the formal recruitment of master and doctoral students will be a matter of next year, but for this summer camp, Ning Wei and Lu Dongyi can already start to select seedlings that they think are not bad in the summer camp, but at this time It is to establish a general intention, and the focus is still on Ningban's side.

There was an episode during the summer camp, Yu Xingwei came back from Jiangcheng with his graduation certificate.

This time I stayed at Jiang University for about half a year. It wasn't that Lu Changbin deliberately stuck with Yu Xingwei's graduation thesis, but it was mainly because Yu Xingwei didn't want to give him preferential treatment. He had to participate in the defense with other doctoral students and then officially graduated.

But Ning Wei also knows that there are some more in-depth contents in it. Yes, Yu Xingwei finally pestered Director Lu to help him make a matchmaker, and fell in love with the daughter of a professor in the School of Biology of Jiang University. The girl I introduced to Ning Wei is now a graduate student in Jiangda University majoring in pharmacy, doing research on microbiology and biochemical pharmacy.

If you want to find a job that matches your major after graduation, you will probably work as a researcher in a research institute of a pharmaceutical company. If you want to work less hard or more securely, you can also choose to get a doctorate at this school and stay as a teacher at the school. There are two options The problem is not big, the main thing is stability.Ning Wei has seen photos of Yu Xingwei showing off in Moments. At least in the photos, the girl looks very pretty and quiet, at least it is enough to match Yu Xingwei.

Ning Wei's comment on this is that stupid people have simple blessings, but Yu Xingwei knows very well that he really has to thank Ning Wei for this marriage to go smoothly.Even in the academic world, there is a unified understanding that it is very important to follow the right mentor or the right boss.

Yu Xingwei's young boss is a professor at Huaxia University of Science and Technology, and his big boss is Academician Lu Changbin. He is also highly valued by the most famous mathematician and computer scientist in China, the youngest professor at Yanbei University, and the rich man Ning Wei. The capital develops together with Ningwei.Leaving aside the scientific research ability, this network alone can almost reach the top of the Chinese academic circle.Let's put it this way, with such connections, as long as Yu Xingwei doesn't kill himself, the rest of his life will definitely not be too bad...

Moreover, Yu Xing's words and deeds during the Weijiang University were actually quite honest, even if he occasionally behaved a little bit of Versailles, which made the brothers in the software laboratory envious and jealous, but if you really want to say that there is no bad evaluation , so at least the woman's parents really like this young man.

In addition, although this girl is the only daughter in the family, her parents are both school teachers. She has been taught very strictly since she was a child, or she was well protected, and her main life trajectory has always been around the campus. She is very simple. He had never been in a relationship before, so he was coaxed into submission by Yu Xingwei naturally.

Ning Wei also cared a few words about Yu Xingwei's love life.

How should I put it, I feel that people's love affairs are actually more normal than his. Of course, this normality is actually closer to life.For example, when the two met for the first time, Lao Lu took him to treat the family to dinner, and then they got to know each other and exchanged WeChat.

When he was revising his doctoral dissertation, he would invite people out for a meal, watch a movie, or take a walk on the campus of Jiangda University, or go to the playground. After getting acquainted with each other, he confessed his love, and then began to hold hands and talk about love. ...

how to say?The standard love template full of this sour smell makes Ning Wei feel that Yu Xingwei has become vulgar and looks even more unpleasant.

But there was no other way. He wanted to drive Yu Xingwei to be in charge of the laboratory. Mr. Chen moved the laboratory on his own initiative. Everything was still being rebuilt. In addition, there were quite a lot of things at hand, so Ning Wei simply followed Tian. Yan Zhen said hello, transferred Yu Xingwei's relationship and files to Yanbei University first, and asked Yu Xingwei to start receiving professional lecturer training directly in the research center, and then became a glorious first-year Ningban teacher, mainly in charge of the first grade The Enlightenment Course on Intelligent Mathematics is probably the simplest part of the theory of artificial intelligence.

This lecturer is very appropriate to use Yu Xingwei. After all, Yu Xingwei was the first to follow Ning Wei. Since Ning Wei first started classes in the research center, he has already studied this theory systematically. Especially in the past two years, he has been following Ning Wei. There are problems Being able to accept Ning Wei's guidance at any time, coupled with his good foundation and solid basic skills, and his doctoral dissertation is also about this aspect, he is naturally the best candidate for enlightenment.

The only problem is probably that he has no teaching experience in class. During the summer vacation, he will be strengthened by an experienced teaching teacher in the research center.

In fact, even if Yu Xingwei does not come to Yanbei University, Jiang University is actually very willing to keep Yu Xingwei in the number of colleges. With the relationship between Yu Xingwei and Ning Wei, plus so many years of getting along day and night, Jiang University's Hongyi College may start to specialize Open a class in the direction of artificial intelligence to keep up with the trend of social development, but Yu Xingwei has been brought by Ning Wei's side, and he has a taste of targeted training, so he can only give up.

After confirming Yu Xingwei's position, the online registration for Ning Ban ended.

The admissions office recommended 73 students before, and 173 application forms were received on the Internet, which is enough to show that the admissions videos Ningwei made were good.

Despite the fact that the Ning class can admit 40 people in total, there are only 246 candidates who apply. This ratio is completely incomparable with the application ratio for some civil servant positions.

For example, to participate in online registration, the minimum requirements for college entrance examination scores are the top [-] science subjects in the province, or at least have won first prizes in official mathematics or computer programming competitions.

The first and most basic requirement alone has already eliminated more than 90.00% of Huaxia's high school students.More importantly, this is tantamount to a second screening among the science students of Yanbei University, because students who have been admitted by other schools obviously cannot apply for the Kaoning class.

There must be some impact, and it's quite big. For example, the quality of students in the opposite Yao class and Zhi class this year has dropped significantly compared to previous years...

Elder Yao must be in a bad mood about this.

After all, the decline in the quality of students means higher requirements for teaching difficulty. With the same textbook and the same teacher teaching, maybe more than half of the students in the previous class could understand it, but now it may be only a small half or even only the previous class. Ten children can understand.The same is true for research ability. Maybe there were children in the class who were able to publish high-quality papers in the sophomore and junior years, but it is difficult to have such a genius appearing in this issue...

This means that Mr. Yao was also specially hired to the research center to be the dean of the Institute of Artificial Intelligence Mathematics. At the same time, he also hoped that the children who graduated from the Yao class and the smart class in the past two years can continue to do theoretical research in the future artificial intelligence research center. It's time for another spat.

Of course, these differences are finally reflected in the average admission scores of the two schools. Among the 34 provincial-level administrative regions in China, the average admission scores of Yanbei University’s science and engineering subjects in 31 provinces this year have surpassed the school opposite the school, and the margin of excess is not much higher than that of the opposite school. Small.Some good people made a special statistics, and on average, Yanbei University's average admission score for science and engineering was 11.6 points higher than that of the school opposite.

It is said that several school leaders of the opposite school directly lost their temper. Of course, these are just rumors, just gossip.Ning Wei does his own work in the yard every day, and has never been to the opposite side. Naturally, he is not sure if he really lost his temper, but the gossip came from Director Tian at the dinner table, so it is naturally credible. .

But if you lose your temper, just lose your temper, there is nothing he can do.Of course, he has made outstanding contributions in this regard, not only helping the school's admissions office to record those videos, but more importantly, the teachers in the admissions office of Yanbei University have already regarded what he once said as famous quotes...

"What? What year is it? You still go to that school? Do you know what Professor Ning answered when the teacher from the Huaqing Research Institute Recruitment Office called to recruit people? The school opposite is not very serious. ,classmate!"

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323 The Back Waves Are the Real Waves

It was the first time for Ning Wei to sit in the interviewer's seat. To be honest, how can I put it...very strange.In fact, Ning Wei has no experience, no matter whether he is sitting opposite to be interviewed by others, or sitting in the interviewer's position and interviewing others, he has no such experience.

Strictly speaking, Ning Wei has even really entered the society. After graduating from university, he came to Yanbei University directly, and is still in the ivory tower, so he has not had time to experience the so-called beatings of the society. Now Ning Wei even wants to experience There is probably no chance for the beatings of the society.

The boss couldn't rub the sand in his eyes, and whoever wanted to beat him would most likely provoke the anger of a group of people.For example, the one who was beaten up by Liu Wei before, it is said that the development after that is not so good.

Although they are all rumors and gossip, Ningwei's news channels often come from famous bigwigs, so the degree of credibility is often relatively high.It's just that they were all left behind by him.

He still remembers the words of Dean Kong of Jiang University of Mathematics, his task is to do his own thing well, and paying too much attention to other clowns is a crime against himself.

……

The interview of the Ning class was held in an office in the courtyard of the Mathematics Research Center. This is also Ning Wei’s opinion. After the opening of the Ning class, students can come to ask questions directly, so it is convenient for everyone to familiarize themselves with the environment during the interview. .

Today is the first day of interviews in Class Ning. There are two days of interviews in total. Among the total of 207 students recommended by the admissions teacher and who have passed the writing skills, at least 60 students will be selected from among the best candidates. They will enter the second round of written examinations, so The task of the interview is still heavy.

The selected 60 people need to eliminate about 20 people in the second round of examinations, but even if these 20 people are eliminated, they can directly enter the School of Mathematics of Yanbei University, and there is no need for another interview, so the first round Assessment is actually very important for students.

The order is based on the written test scores from high to low. The first batch of 207 people basically scored above 80 points in the written test, which is actually very rare.After all, the difficulty of the test questions in this exam is not comparable to that of the college entrance examination.Especially the last big question is not only a mathematical question, but also involves some computer algorithm ideas, which is extremely difficult.

Basically, as long as the last big question can get a high score, even if the total score is a little bit worse, you will be given an interview opportunity.

The interview lineup for these two days is also very luxurious. Ning Wei is the main interviewer. Tian Yanzhen, Lu Dongyi and Professor Xiao Liang from the School of Numerology came to support Ning Wei. Views.

According to the rules of this interview, Ning Wei has the right to decide, that is to say, whichever child Ning Wei likes can pass the interview directly. After all, Ning Ban's surname is Ning.If Ning Wei is not sure, other interviewers will give their opinions for Ning Wei's reference.

This time, it is not only to select high-quality students for the Ning class, but also to select high-quality students for the future school of mathematics.

The interview officially started at [-] o'clock in the morning. The first student called to enter the interview office was Chen Diancheng, who graduated from Mingzhu Middle School and was the only student who got full marks in the first round of written examination.Ranking him first has nothing to do with his previous grades, the main reason is that his idea for the last question is very creative, so Ning Wei directly rated it as an excellent after reading the paper.

In the interview, there will be no specific questions for students to answer. The main thing is to examine these students' attitudes and talents towards mathematics.

"Hello, examiner, and professor Ning." Chen Diancheng walked into the classroom, said hello, and sat down.

Ning Wei was specially brought out to greet him, in exchange for the joking smiles of several examiners on the opposite side. It must be admitted that now Ning Wei's reputation among the younger generation of outstanding students is indeed extremely high.

So the three assistant examiners didn't speak first, but turned their attention to Ning Wei, who was not quite used to it yet.

"Ahem...you should introduce yourself first." Ning Wei said casually.

The omnipotent question, in fact, has read the resume, but it can test the candidate's language organization ability, of course, because Ning Wei has no experience in interviews.

"My name is Chen Diancheng. I come from Mingzhu Middle School. I have been interested in mathematics since I was a child. I once took..."

Simple self-introduction, but with all the important points.

Ning Wei nodded, and then continued to ask: "Well, since when or why did you become interested in mathematics?"

Chen Diancheng thought for a while, and then answered: "Well, that was when I was in the first grade of junior high school, because I really liked to play the No. When raising the head and aiming the muzzle at the sky, as long as the mouse shakes with a small float, the character under control will rotate 1 degrees greatly. In some games, when the head is lowered to operate, the same situation will happen in this operation. "

"This operation allows me to perform an extremely fast turn operation. Then one day after I finished playing the game, I suddenly wondered why this happened? Then I started to consult some information and realized that this operation can be done using topology. It is explained by the hairball theorem, that is, a sphere covered with hairs, it is absolutely impossible to comb all the hairs so that no twists like those on the hair are left."

"Expressed in mathematical language, it is impossible to have a continuous unit vector field on the surface of a sphere. According to this theorem, it can also be deduced that the wind speed and wind direction on the earth's surface are continuous, so it can be concluded from the hairball theorem that the total There will be a place where the wind speed is 0, which means that cyclones and storm eyes are inevitable and must exist."

"In the same way, if this theorem is applied to games, then the 3D engine of the game needs to solve the same mathematical problem. When the data input by the player with the mouse is only a line of sight axis, the game screen can actually rotate arbitrarily around this axis theoretically. Then Where should the actual screen be up and where should be down? This requires a direction for each mouse data—that is, a vector field.”

"But because the hairball theorem has proved that this vector field must have at least one discontinuous point, so around this point, an extremely small movement of the mouse will cause the screen to flip sharply. The reason why I can turn around quickly. When I discovered that mathematical theorems are closely related to the games I love to play, I have a strong interest in mathematics since then.”

……

After hearing this answer, several interviewers glanced at each other.

What is talent?That's it!

Ning Weidu found that there is really nothing to say about talent. This kind of gunfight game is the favorite of his classmate and friend Luo Xiang for four years. As a student of mathematics, he has played many similar games in the past four years. Survival in the wilderness, eating chicken and so on, everyone is playing games, some have become professional gamers, some have learned the truth of mathematics from it, and some have delayed their studies...

Talent is really incomparable between people.

"Then do you know why some games that use AR technology don't have similar problems?" Ning Wei asked casually.

"Well... I think this is because the equipment used is the same, because when using an AR device to play a similar game, the variable of the absolute AR screen is not just the data axis of the mouse, but a combination of data from many devices, so it will not appear. this phenomenon."

Ning Wei nodded, this is indeed the correct answer.

"How do you usually relieve your stress?" Tian Yanzhen asked another question.

"I mainly play games. During the holidays, I will occasionally go to the park and climb mountains with my good classmates, and discuss some issues of concern to each other. Every summer vacation, I also have the opportunity to travel around with my father. My colorful and rich life can be effectively solved. Some academic pressure."

"Then have you ever thought that you will always insist on research in mathematical theory in the future?"

"Yes, this is my hobby. I think it will be a very good thing to combine my hobby with the future. I am very interested in the mathematical theory of artificial intelligence, so I also thought about going to a smart class to study or go to I studied abroad at Berkeley, but the Ning class gave me the hope of in-depth research in this field in the future, so I finally decided to go to the Ning class.”

"Okay, that's it for today's interview, and I look forward to seeing you again in September at the University of Jiangxi University of Mathematics." Ning Wei nodded and said.

The entire interview took a total of 5 minutes, and Ning Wei directly put a √ under the name.

Before the next student walked into the interview office, Tian Yanzhen said with emotion: "Sure enough, the times are different. Children in this era can show their interest in mathematics through playing games."

Ning Wei nodded and said: "The key is that you can have this kind of thinking ability in the first grade of junior high school, and you can also learn algebraic topology by yourself, which is beyond my expectations."

"Don't expect too much from the next interview just because the first student performed well enough." Professor Xiao said to Ning Wei with a smile.

"Haha, Professor Xiao, it's not necessarily true. You have to believe in our Professor Ning's appeal."

……

"I like mathematics because I use mathematical thinking to solve a physical problem, and then find that mathematics is really wonderful..."

"When I came into contact with Riemannian geometry and found that parallel lines can also intersect, when the interior angle of a triangle is not necessarily equal to 90 degrees, it seemed to open a mathematical window for me."

"I started programming when I was in junior high school, and then I found that if you want to be an excellent engineer, you need to study mathematics in depth. Since then, I have become interested in mathematics..."

……

After getting a rather unexpected answer from Chen Diancheng, Ning Wei asked almost every interviewee the same question, and got various answers, most of which were excellent of.

In this way, a total of 100 interviews were arranged on the first day, and all interviews were completed from [-]:[-] am to [-]:[-] pm.

Yu Xingwei immediately made the statistics. Ning Wei's list has already checked 22 people, and there are 17 people to be confirmed.

The results given by the other three deputy interviewers are actually similar. The more controversial ones are concentrated on two students, but in any case, at least these students performed very well. Tian Yanzhen even gave this round of test results. There are [-] more places, anyway, the next round of Ningban test can still go to the mathematics academy to study.

By the time of their sophomore year, maybe this group of students from the School of Numbers could be replaced by the students eliminated from the Ning class.

This suggestion is actually very reasonable. After all, I have stayed in the Mathematics Department of Yanbei University for a long time, and I must have more experience in various aspects than Ning Wei.Many children performed very well in basic elementary mathematics in high school, and even won national awards; but after being exposed to advanced mathematics, their grades began to plummet; Suddenly enlightened, and the grades began to improve by leaps and bounds...

The main reason is abstract thinking. Many children can feel the beauty of mathematics when they are exposed to elementary mathematics, and they are very interested in it.Let's put it this way, competitions generally test the depth of thinking and the proficiency of skills, but to do mathematics research, you must first learn a huge system. understand the difference.

At this time, it is no longer the proficiency of the problem-solving skills, but the breadth of thinking.After all, many mathematical research directions have never thought of solving any practical problems, especially the research of mathematical theory. This is why many people advocate the theory that mathematics is useless, but having this kind of thinking ability is the most important talent for doing number theory research. .

Why is Ningwei favored by the bosses?Because this guy not only has this kind of talent, but also has goals, and the research he does is particularly directional.

Back to the enrollment of Ningban, since the quality of students this year is better than expected, it is natural to apply a few more enrollment indicators.Not to mention that this was proposed by Tian Yanzhen, and everyone naturally had no opinion.

After the interview, Tian Yanzhen wanted to organize everyone to have a meal together, but it happened that Professor Xiao and Lu Dongyi were both busy, so he gave up.I just asked Ning Wei to go back to the R&D center for lunch.

"By the way, I have something to tell you. Mr. Pichai from Google is going to visit China in two days. The first stop is our Mathematics Research Center. Then you should make time to meet him. If you have anything to say, please do so. explain."

"Sander Pichai?" Ning Wei asked.

"Ah."

"Okay, when will you come?"

"It should be in the afternoon of July 7, and in the morning of July 11. Then you can accompany him around the center, and then go to your office to chat casually. I won't join in the fun."

"Oh!"

Ning Wei responded casually.

This news is a bit sudden, but Ning Wei is already used to it. Anyway, the bosses of these high-tech companies can appear to be free from time to time and come to Huaxia.

To be honest, I don't feel anything.

After all, he has seen a lot of important people. Ning Wei has already met the chairman of Ericsson, the president of Cisco, the CEOs of Apple and Intel in his office, and now it is nothing more than the president of Google.

What's more, it's not interesting to communicate with these bigwigs. The main reason is that the thinking mode is different. Others have a business thinking mode, and he has a purely academic thinking mode. If you don't recognize yourself, it's easy to not speculate.

However, the arrival of the Google CEO this time did not surprise him. It is estimated that the main reason is that Android is not very popular in the market now, which makes the big boss of Google a little bit impatient.It should have been in contact with Huawei, and the focus of this visit to China must still be at Huawei's headquarters in Shencheng. Looking for him probably means paying homage to the dock.

After all, for Google, the loss of Android means that the layout of many years is gone at once, which is somewhat unbearable.Especially so that investors can not bear.What's more embarrassing is that Google's self-developed fuchsia os operating system has signed some agreements with Samsung before, but now it is likely to be yellow, and a large amount of research and development costs have been wasted. For shit-stirring high-tech companies, it is undoubtedly a huge blow.

But Ning Wei still doesn’t like this company very much. There is no other reason. Some time ago, he had the strongest resistance to the March smart platform, and the one who made the most quibbles was Google, not to mention that Google also did a very nasty thing. , It was agreed to pay 100 million US dollars to implement Ningwei's compilation of big data theory textbooks, but in the end it turned out to be a promise...