Chapter 2 Weird things

Author: Bucket of Pudding

Chapter 2 Weird things

Many people confuse mathematical modeling competitions with mathematics competitions, but in fact the two are completely different concepts.

The former mainly tests how to use mathematical knowledge to solve practical problems, forming a logical closed loop with strong directionality; the latter only needs to solve pure mathematical problems.

Relatively speaking, the mathematical modeling competition is obviously more complicated. It requires not only mathematical knowledge, but also programming, and the ability to write papers in a standard format.

For pure mathematics competitions, it is enough to be able to solve mathematical problems.

Of course, this does not mean that mathematical modeling competitions are more difficult than mathematics competitions. After all, pure mathematics is also recognized as the most difficult subject in the world.

But for Ning Qing, the mathematical modeling competition obviously has a special meaning. To him, it seems to mean that God is guiding him.

For example, the competition that once changed the trajectory of his life put a new path in front of him when he was most confused. It was like helping him find the meaning of life.

The only problem now is probably that it is quite troubling for a poor student like him to suddenly sign up for a mathematical modeling competition. Whether it is a teacher or a classmate.

…

When the music that signaled the end of get out of class sounded, Ning Qing had already made up her mind, so she followed the math teacher out of the classroom and stopped Luo Zhen in the corridor.

"Teacher Luo, I want to sign up for this year's International Mathematical Modeling Competition."

"Okay, call your team members together. The registration fee is three... uh... Ning Qing? Did you just say that you wanted to sign up for this mathematical modeling competition?" Luo Zhen stopped and was surprised before he finished speaking.

He looked at the child in front of him.

For a responsible teacher, Luo Zhen knew everything about the level of the children in the class, not to mention that Ning Qing was still a celebrity in the second grade of high school.

My grades have plummeted for two consecutive semesters, from the rocket class to the key class, and then from the key class to the current low-achieving class, ah, no, it's the ordinary class... This kind of speed of decline has never been seen in Bilingual 1.

Pass.

As far as Luo Zhen knows, Ning Qing's two head teachers have not thought of ways, and parents have invited them many times. But after all, the main body of learning is the students themselves.

Now Ning Qing wants to sign up for a mathematical modeling competition?

In fact, Luo Zhenya was just talking about this in class nine.

The mathematical modeling competition is mainly for the training content of the rocket class, because it involves some advanced mathematical knowledge and programming content that can only be learned in universities, and only the rocket class has special related interest groups.

This is why Teacher Zhou, who is in charge of this mathematical modeling competition, is too lazy to come to the classroom to inform the students. Let him mention that the children of many families in these two classes are either rich or noble.

To put it simply, all schools are eligible to sign up for any competitions and activities in the name of the school. Students can ignore it and not sign up, but the school must not fail to notify them.

…

"Yes, Teacher Luo, I want to sign up for the modeling competition." Ning Qing nodded and replied seriously.

Luo Zhen thought for a while and said: "Well, Ning Qing, it's a good thing that you are interested in mathematical modeling, but mathematical modeling involves advanced mathematics and algorithms, which you may not have been exposed to. And you still need to be proficient.

Use multiple computer languages ​​to program and write summaries and papers..."

"Teacher Luo, I actually understand a little bit of what you're talking about." Ning Qing considered her words carefully.

"Do you know something about it? For example?" Luo Zhen asked in surprise.

"As for mathematics, I am actually very interested in mathematical analysis. I have also systematically taught myself linear algebra, probability theory, mathematical statistics and advanced mathematics.

I also have a general understanding of common algorithms such as linear regression, logistic regression, gradient boosting, decision trees, random forests, naive Bayes, and deep learning;

In addition, I read many papers when I was studying these, so I also know some paper formats and writing standards." Ning Qing explained carefully.

There is no way, his statement must be consistent with his current status as a scumbag. So he really can't use the word "proficient" to describe his knowledge reserve.

Understand a little, understand roughly, know a little, these descriptions should be able to dispel the doubts of the math teacher in front of me, right?

However, the already modest description still made Luo Zhen a little confused. He looked at Ning Qing doubtfully and asked: "Wait a minute, Ning Qing, what kind of algorithm is the Naive Bayes algorithm you just mentioned?"

"Well...it's just..." Looking at the teacher's confused eyes, Ning Qing was about to explain and suddenly realized a cheating question.

Many theorems on earth are named directly after the person who proposed them. Although the naming rules in this world are similar, and some scientists have shined their own light, such as the famous Jean Fourier, some scientists seem to have never appeared.

Bayes, the British scholar who proposed Bayes' theorem, is probably one of them.

The Naive Bayes algorithm is based on Bayes’ theorem...

So Ning Qing quickly changed his words: "It is an algorithm derived based on the marginal probability theorem of random events. The theorem describes that when random events AB are independent of each other, event B has occurred, then the probability of event A also occurring is equal to event A alone

The probability of occurrence, the product of the probability of event B occurring alone and the probability of event B occurring after event A occurs.”

"Oh, this is Statham's theorem, you should be talking about Statham's classification algorithm." Luo Zhen suddenly realized.

"I'm sorry, teacher, I remembered it wrong."

Ning Qing admitted his mistake without changing his expression. He is a poor student now, so he should understand if he misremembered a name. But Luo Zhen was even more confused in his heart.

Although Ning Qing said some things wrong, he was able to accurately describe Statham's theorem, which shows that Ning Qing has really studied probability theory. A child who failed two consecutive final exams plus the usual unit test mathematics, studied by himself in college.

Luo Zhen found that he could no longer understand the child in front of him as he needed to learn advanced math content.

"Okay, self-study is a good thing, but you still have to be serious. By the way, have you signed up for this competition and chosen your teammates?"

"Does it have to be a team of three?" Ning Qing asked. He was not familiar with mathematical modeling competitions in this world.

"The competition at the high school level usually involves five people. Of course, three people can do it. In this way, I will have a high school mathematics teaching and research conference to attend. Come to my office after school in the afternoon." Luo Zhen explained.

"Okay, Teacher Luo."

Ning Qing agreed, then turned and returned to the classroom.

Luo Zhen looked at Ning Qing's back and suddenly felt that the child's back looked a little lonely.

What happened today is strange...
Chapter completed!