technological heresy

Chapter 2 Strange Things
Many people confuse the Mathematical Modeling Contest with the Mathematical Contest, 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.Not only knowledge of mathematics is required, but also programming, and the ability to write papers in a standard format.

A pure math competition only needs to be able to solve math problems.

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

But for Ning Qing, the Mathematical Modeling Contest obviously has a special meaning.In his opinion, this seemed to mean that God's will was guiding him somewhere.

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

The only problem now is probably that it is quite troublesome for a scumbag like him to suddenly sign up for the Mathematical Modeling Contest.Whether it is a teacher or a classmate.

……

When the music that represented 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.

"Ms. Luo, I want to sign up for this year's International Mathematical Contest in Modeling."

"Okay, call your team members together, the registration fee is three...er..., Ning Qing? You just said that you want to sign up for this mathematical modeling competition?" Luo Zhen stopped, subconsciously surprised before he finished speaking He looked at the child in front of him.

For a responsible teacher, Luo Zhen knew all 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.

Grades have plummeted for two consecutive semesters, from the rocket class to the key class, and then from the key class to the current scumbag class, ah, no, it is an ordinary class... This kind of speed of grade decline has never happened in Bilingual No. [-] Middle School Pass.

According to Luo Zhen's knowledge, it's not that Ning Qing's two class teachers have thought of a way, and their parents have invited them many times.But the subject of learning is the students themselves after all.

Now Ning Qing wants to sign up for the Mathematical Contest in Modeling?

In fact, when Luo Zhen talked about this in class nine, he was really just talking.

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

This is why Mr. 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 expensive.

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 and refuse to sign up, but the school must not fail to notify.

……

"Yes, Mr. 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 numbers and algorithms, and you may not have been exposed to it. And you need to be proficient Programming in multiple computer languages ​​and writing summaries and papers..."

"Mr. Luo, I actually understand a little bit about what you said." Ning Qing carefully chose his words.

"You know a little bit? For example?" Luo Zhen asked in surprise.

"In mathematics, I am actually very interested in mathematical analysis, and I have 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 enhancement, decision tree, random forest, naive Bayesian, 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 carefully explained.

There is no way, his statement must be in line with his current status as a scumbag.So it is really impossible to use the word proficiency to describe my knowledge reserve.

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

However, the already modest description still made Luo Zhen a little confused. He looked at Ning Qing suspiciously and asked, "Wait, Ning Qing, what kind of algorithm is the naive Bayesian algorithm you mentioned just now?"

"Hmm...that's..." Looking at the teacher's puzzled eyes, Ning Qing was trying to explain a problem that he suddenly realized was a trick.

Many theorems on the earth are named directly after the names of the authors.Although the naming rules of this world are similar, and some scientists have also shown their brilliance, such as the famous Jean Fourier, but some scientists seem to have never appeared.

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

And 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, and event B has already occurred, then the probability of event A also occurring is equal to the probability of event A alone. The probability of occurrence, 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 the Statham classification algorithm." Luo Zhen suddenly realized.

"Sorry, teacher, I remembered wrongly."

Ning Qing admitted her mistake without changing her face.His current status is a scumbag, and he should be able to understand if he misremembered a name.It's just that Luo Zhen was more puzzled.

Although Ning Qing said something wrong, but he can accurately describe Statham's theorem, which shows that Ning Qing has really studied probability theory.A child who failed two consecutive final exams and the usual unit test in mathematics, taught himself the advanced mathematics content that is required for university, Luo Zhen found that he could not understand the child in front of him at all.

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

"Must be a team of three?" Ning Qing asked, he was not familiar with the mathematical modeling competition in this world.

"There are usually five people in high school competitions, of course three people are fine. In this way, I will have a high school mathematics teaching and research conference to attend, and you can come to my office after school in the afternoon." Luo Zhen confessed.

"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.

Today, this matter is strange...

(End of this chapter)