Rebirth: I carry a desktop computer inside me

Jiang Cheng also did not expect that his first game on the shelves would actually catch fire.

But it's also normal to think about it.

Today's games, Jiang Cheng has also looked at most of them, and they are still in the preliminary stage, and there are not many high-quality games.

Jiang Cheng's game, the picture elements are excellent, and the gameplay is very eye-catching, and it takes some thought to complete the level.

The fragments of only one level are random every time, not to mention the design of thirty levels.

This really cost Jiang Cheng a lot of brain cells, and Zhu Jian, Hao Yongjun and Xu Siyuan also gave advice in this regard, and thought a lot.

Therefore, each level is very classic.

Therefore, it was able to spread by word of mouth and spread rapidly.

The existence of the PK system makes everyone interested in fighting a sequence.

It seems that whoever comes first can prove who is smarter.

After the fruit system was also launched, Jiang Cheng felt that the number of downloads was rising, and the money he recharged was also rising.

Although the commission received was not much, Jiang Cheng believed that there was no problem in returning the capital.

Jiang Cheng took several classes of his own profession normally.

When I arrived at the class, I glanced at it and found that there were still a few people who did not come to the class.

After thinking about it, I also remembered that Hao Yongjun said that there are also several big bulls in his class, and now they are already doing projects with their supervisors, and it is estimated that the papers are all opening thesis.

Sure enough, there are also great gods, and Jiang Cheng is just a good memory and hands-on ability.

In addition to the compulsory courses, Jiang Cheng's self-selected courses were also fully arranged, but it was useless, Jiang Cheng had already completed all self-study.

Therefore, in terms of course selection, he is still free to listen to the classes of his junior year.

Specially guarding Professor Yang Mingde, finally let him guard.

"Professor Yang, I'm Jiang Cheng from this department, can I ask you a question when you delay for a minute?" Jiang Cheng took the notebook and prepared to ask questions first.

Everything has to be familiar.

Yang Mingde still has gray hair, which is not sparse. At this time, he looked at Jiang Cheng with glasses, "If it's not urgent, you can send me an email." Given

an array of size n, find the majority of its elements. Professor Yang, I have tried the algorithm several times, but I feel that the complexity of time and space is somewhat high..." Jiang Cheng simply described the problem directly.

Sure enough, when it came to the algorithm problem, Professor Yang Mingde stopped and his mind began to think.

Yang Mingde thought for only half a minute, and said, "This is a good question, but you can start counting from the first number, encounter the same is +1, encounter different poop -1, if you reduce to 0, then start again from the next number."

"Got it." Jiang Cheng also reacted instantly.

Yang Mingde said, "Young man, algorithm is something worth constantly studying intensively, and you have the heart to constantly challenge, which is good."

"Okay, Professor Yang, my name is Jiang Cheng, I am from the one-word class, can I give me a business card, can I email you some questions?" After asking questions, Jiang Cheng introduced himself and asked for a business card.

Yang Mingde frowned lightly, but quickly stretched and handed Jiang Cheng a business card, "Why did you come to the junior year to listen to the class?"

"I finished my freshman and sophomore years and wanted to learn more advanced knowledge."

"Young man, you can't be so high, you have learned it well, but it does not mean that you have mastered it." Yang Mingde admonished.

Jiang Cheng did not refute, since he had an impression, the next time was to communicate through email and increase his familiarity.

Although he is powerful, in these aspects, he is still far from these big bulls.

Be sure to be humble and discreet.

At noon, Jiang Cheng sorted out several problems encountered in self-study and sent an email to Professor Yang Mingde.

Not only that, in the email, Jiang Cheng also wrote his solution and asked the other party to correct the homework.

A good mentor doesn't come across often, and you have to catch a fierce one.

Jiang Cheng then landed on the Freelancer forum.

After a few months, Jiang Cheng has grown into a semi-novice.

I also received a few orders, but they were not big, and they only earned more than a hundred knives, and Jiang Cheng didn't want to withdraw it, just as a way to exercise himself.

However, there are still some such websites in China.

Jiang Cheng thought in his heart, if he has money, will he open one himself?

After taking another order, Jiang Cheng spent half an hour writing code in the internal computer, but submitted it.

No, the other party confirmed quickly.

More than 100 knives in hand.

It seems urgent.

Jiang Cheng writes code in the internal computer extremely quickly, and it is very suitable to find these urgent lists.

So I refreshed the meeting, took a few more orders that were not difficult, and a whole person, after half a day, actually earned nearly 1,000 knives.

According to the exchange rate, there are also seven or eight thousand yuan.

No wonder that IT gods earn hundreds of thousands a month are pediatrics.

Jiang Chengmeizi closed the forum and continued to carry out the algorithm deepening.

In the library, Jiang Cheng found "Algorithm Notes" and "Algorithm Design" for in-depth study.

Before his learning, he was still based on the basic learning of several programming languages, and he was familiar with the use of some functions, but there was still a big gap in the algorithm and data structure.

This determines whether he can become a good software engineer (code farmer).

Even with super computing ability, Jiang Cheng still feels that there will still be occasional feelings of incomprehension in learning.

It feels like you know the principle, but when you come to use it, you can't turn a corner.

But this can't be blamed on Jiang Cheng, but the deeper these books go, the more strange the feeling:

"Well, now that you know 1+1=2, please prove the Goldbach conjecture."

......

Difficult books, the more you nibble, the more flavorful.

When designing, the needs are often diverse, and it is not like examples, more need to think about the solution with the brain.

That's the beauty of algorithms.

Any program, in the final analysis, is a composition of 1s and 0s, which are implemented by programming languages with algorithms.

In the evening, Jiang Cheng received a reply from Professor Yang Mingde.

In the email, Professor Yang patiently returned to Jiang Cheng and corrected Jiang Cheng's homework.

Finally, Yang Mingde also added a sentence, "The algorithm road is difficult and interesting, if you have the heart, remember to go further and deeper." Jiang

Cheng pays attention to algorithms, and more importantly, he knows that many programs in the future will work algorithms.

They combine big data analysis and user preference analysis to specifically recommend relevant news, short videos, etc., and build a circle for each user.

A circle that is both comfortable and stable.

In the circle, people with common hobbies and people with common three views.

Jiang Cheng will definitely enter these categories of programs, so his deep mastery of algorithms will be the core technology.

After Jiang Cheng wrote the letter of thanks, he did not immediately ask another question, he was also afraid that this professor would be crazy at night and blackmail him.

The next day, Jiang Cheng prepared the question and directly asked Yang Mingde to teach again.

After asking in person, Yang Mingde was more impressed by Jiang Cheng, and also left each other's buckles and contact information.

A few days later, Jiang Cheng naturally chose Yang Mingde as a mentor and was allowed to study in his project.

Implementation of face recognition based on MB-LBP operator and Multilinear PCA algorithm.

I feel tall.

However, Jiang Cheng knows that future mobile phones will carry face recognition technology.

This is an important direction of current research.

PCA algorithm, Jiang Cheng is not very familiar, only in the book contact, know that the full name is Principle Compoent Analysis, translated as the main element component analysis, the principle is to project high-dimensional data, and then re-select the point to calculate and analyze.

Because he can follow the miscellaneous in the project, Jiang Cheng focused on the PCA algorithm, read all the algorithms related to this type in the library, and read some recent journals and papers, and wrote down the cutting-edge knowledge.

When he came into contact, Jiang Cheng would not understand anything, but would basically be able to react.

Nowadays, the project has reached the hardest part.

The PCA algorithm is a dimensionality reduction algorithm and a lossy algorithm, which directly identifies faces through this algorithm, and the error rate is extremely high.

It is basically equivalent to everyone being recognized as Yanzu.

Yang Mingde and other teams plan to use the MB-LBP algorithm to extract the features of the face image first, then use the Multilinear PCA algorithm to reduce the dimensionality of the extracted face features, and finally use the nearest neighbor classifier for face recognition.

The way is good, but in the actual research process, because of the algorithm, the recognition is not accurate enough.