From University Lecturer to Chief Academician

Sha Mianzhi knew that Wang Hao was also going to make a report, and said that he would become a competitor with him, so he felt a little nervous.

He used to be Wang Hao's teacher, but Wang Hao is no longer an "unimpressed" undergraduate student. Those who can go to Donggang University for graduate and doctoral degrees can be called elite talents, and those who can stay in Donggang University Doctoral students can be said to be the 'elite of the elite'.

Even Xu Jie, the most promising doctor under his staff, who brought him to attend the STACS meeting, dare not say that he can stay in Donggang University 100%.

Donggang University has too many talents!

Wang Hao is also a very good one. Leaving aside the issue of the material laboratory, he has completed many SCI papers within a few months after leaving Donggang, and several algorithm papers were published in core journals. The thesis on Fourier transform to build mathematical models' has had a considerable impact on the Internet industry, which can promote faster and more accurate big data analysis.

This result can be said to be top-notch.

However, because of the public opinion some time ago, Sha Mianzhi knew that Wang Hao had just completed several studies. When he first saw Wang Hao, he never thought that he was here to give a report. He just felt like other scholars. In order to gain knowledge and study, Ruan Hailong, who was with him, seemed to be giving a report.

After separating from Wang Hao and Ruan Hailong, Sha Mian and his group went to the conference hall again, and looked for Wang Hao's report in the electronic column.

"At the end, the second hall, the first session in the afternoon." Wang Mingkun took a quick look and found Wang Hao's report.

"Large number multiplication algorithm?"

Wang Mingkun thought about it and said, "He has just completed research on the Fourier algorithm, so it is probably an improved algorithm."

He reckoned, "Small results, good luck, the manuscript has been passed!"

"It should be like this." Sha Mianzhi nodded thinkingly. He has just completed a major research. Normally, it is unlikely to complete another one quickly. The multiplication algorithm of large numbers is a focal issue, but it has not been done for decades. Breakthrough progress, and the improvement of algorithms and the improvement of efficiency in specific situations can only be classified as "small research".

"Wang Hao, I guess it was just a joke!" Sha Mianzhi smiled and shook his head.

Xu Jie next to him suddenly asked, "Mr. Sha, isn't Wang Hao a Ph.D. in mathematics? How did he come to the computer conference?"

Before Sha Mianzhi could speak, Wang Mingkun smiled and said, "Xiao Xu, if you want to go further in the direction of basic computer research, you must learn mathematics well, and it's best to learn it deeply."

"Mathematics is the foundation of computers. No matter what algorithm it is, the foundation is mathematics."

"If you are good at mathematics, it is easy to achieve results in computer research. Conversely, you are only good at computers, know a lot, and can use them. You can only be a programmer, and you have no way to engage in theory and algorithm research."

Sha Mianzhi also smiled and said, "Listen more to Teacher Wang, that's why I asked you to read more about mathematics."

Xu Jie nodded knowingly.

When I think of Wang Hao, I can't help being a little envious. The other party is one year younger than me, but he has already completed influential research, can give reports at top conferences, and can talk to Sha Mianzhi and Wang Mingkun on an equal footing.

And he was just a doctoral student following his supervisor.

...

The next day, the meeting officially started.

Both Wang Hao and Ruan Hailong came early, and there was no special arrangement of seats at the venue, and they didn't sit too far ahead, they just found a seat in the middle.

Not long after, the three of Sha Mianzhi also arrived, and they walked over and sat down side by side.

The reports in the morning are all held in the No. 1 conference hall, and it is the turn of some "unfavorable" reports that they will be conducted together in the two conference halls.

After the opening time, the meeting organizer, the chairman, and several committee members entered the venue one after another. Afterwards, the chairman came to the stage and said a lot of things. It can be summed up simply as 'the meeting has officially begun'.

The opening of the STACS meeting was not that complicated. It was just that the chairman said a few words, summarized last year's meeting, and then talked about the arrangement of this year's meeting, and then announced the official start of the report meeting.

The first person to play was a young professor, probably only about thirty years old, from the Ecole Polytechnique.

The meeting held by Faguo must take care of the "insiders".

It is also a very suitable choice to use a "not very important but not wrong" research as an opening statement to get the meeting officially on track.

The young professor talked about the research on "Online Algorithm-Regularized Double Average Algorithm". The content sounds interesting, but the research has only made a little progress, and it is difficult to attract the attention of the scholars present.

In twenty minutes, the report ends.

Some people in the venue applauded politely, but most of the applause came from the front row, from the organizers, judges, and invited experts of the conference. The scholars in the back row didn't even applaud symbolically.

They are polite enough not to yell "go down" and "go down" for research that is "not interested" and "not very meaningful".

This is a real academic conference.

Only those who have strength can win applause, and if they don't have strength, just don't go up there. Scholars don't understand 'hypocritical politeness'.

Wang Hao also listened to the first report a few times, and found that it was not helpful to him, and the research and development progress was very small, there was nothing outstanding, just like everyone else, he was not interested.

When it came to the second report, he listened attentively and patiently, and even used a 'teaching coin'.

The others also listened carefully.

The first report is equivalent to "making an opening", while the second report and the third report are relatively important, and they are researches that the reviewers of the venue consider "significant".

Many scholars who do not need to make reports come to the conference to listen to research of great significance. Professional top-level conferences are also places to gain knowledge and learn things. New research directions and new content can make scholars Knowing what other people are researching and how to complete the research, you can open up your thinking and find inspiration and direction related to your own research and development.

Wang Hao valued three reports the most, the second and third sessions today, and the third session tomorrow morning, which is the research conducted by Sha Mianzhi and Wang Mingkun.

The second session now being conducted is a research done by a professor at Oxford University, which is a theoretical study of the computational complexity of the gradient descent algorithm.

This is very rare.

Many aspects of applied research rely on an algorithm called 'gradient descent', which is the process of finding the maximum/minimum value of a mathematical function, from calculating the best way to produce a product, to optimally scheduling workers' shifts method, the 'gradient descent' algorithm can come in handy.

However, compared with the multi-directional application, the relevant theoretical research is rare and pitiful.

The Oxford University professor who gave the report, from the two directions of "gradient descent algorithm is not effective on many common problems" and "a lot of work on gradient descent does not involve complexity theory", in the way of mathematical computers, research various The intersection problem in the class situation problem, so the theoretical demonstration of the gradient descent algorithm is carried out.

Wang Hao listened with gusto, and the clear logical analysis in the argument made him feel that he had a clearer grasp of the logical argument.

Another reaction is --

[Task 2, inspiration value +1. 】

After listening to the whole process of the report, I directly brought a little bit of inspiration from 'Task 2', which is obviously huge.

Although there is only a little inspiration value, you must know that the "task two" is to decipher the number of God, and the difficulty is A level. Just adding a little inspiration value may be a very important improvement.

The report of the Oxford University professor received unanimous admiration and unanimous applause when it was completed.

Sha Mianzhi sat next to Wang Hao, and couldn't help sighing, "It seems that it is not easy to get the best!" He is confident in his research, but it is hard to suppress the report just now. It depends on the opinion of the meeting review team.

The following is the third game.

The second and third sessions of the first day of the meeting can be said to be the finale. With the wonderful report just now, many people are also looking forward to the third session. The contestant is Themis Goerlik from the University of Helsinki, Finland S, and his colleague Almarov.

The name of the report is 'Fast and Accurate Least Mean Square Solution', and the content is the improvement of the least mean square algorithm, which is the LMS algorithm.

After Themis-Gorlix came to power, he proudly announced, "We have found the fastest and most accurate least mean square solution method, which can reduce the computational complexity by more than two orders of magnitude, without loss of precision and improved numerical stability."

This sentence immediately caused an uproar in the venue.

The least mean square solution is the core of many machine learning algorithms. It can reduce the computational complexity by more than two orders of magnitude. It is not a joke. It is no longer an improvement, but a "leap-forward progress".

For example, calculating a problem requires 100 million operations, and dropping by two orders of magnitude becomes 1 million operations.

This is clearly a qualitative leap.

Themis-Gorliks ​​began to explain seriously, and his colleague Almarov made a supplementary explanation. They proposed a very novel divide-and-conquer method, and then used the discrete Fourier transform algorithm to act as a whole The 'helm' of the framework.

Wang Hao suddenly became energetic when he heard this.

He felt that the content of "steering" seemed a little familiar, and he would understand it if he continued to listen.

The following research content must have certain references and references for my own "Fourier Transform Assisted Construction of Mathematical Models".

"Plagiarism?"

"No, it should be said to be an application."

It is normal for the content of the published paper to be used as a reference for other research, as long as the paper has a 'reference' on it.

That's okay.

However, Wang Hao continued to listen, and couldn't help frowning. He found that there were problems in the research of the other party, especially when it involved the discrete Fourier transform algorithm. The combined "divide and conquer" support reduced the computational complexity by two orders of magnitude. Something went wrong.

The report lasted about an hour, and Themis-Gorlix completed most of the explanations. He explained the "general direction", and he stopped for a rest, and let everyone in the venue digest.

While the others were amazed at the results of the report, Wang Hao shouted, "Mr. Gorelix!"

Themis-Gorlix immediately noticed Wang Hao, and asked suspiciously, "What's the problem, young gentleman?"

Everyone at the venue looked over immediately.

Wang Hao stood up and said, "Your report is very exciting. I mean the first part, but the second part, using discrete Fourier transform to structure the overall calculation, I think there is a problem."

"The combination of the discrete Fourier transform and your 'divide and conquer' method, when calculating a very large number or a large amount of calculations, for example, more than one trillion times of calculations, it is impossible to shape the kernel set that bears the complexity All solutions are included."

"You rely on Caratheodory's theorem to complete the construction. There is no problem with the divide-and-conquer method itself, but when combined with the discrete Fourier transform algorithm, problems will arise."

"It is in the second part that the representation of convex hull points begins..."

Wang Hao pointed in a direction with his finger.

Themis-Gorlix didn't look back, but said with disdain, "Young man, where is your mentor?"

"This is the STACS meeting and you are responsible for what you say."

Wang Hao smiled lightly, "Of course I will be responsible for my words. In addition, I am also here to give a report, and I am not with the 'mentor'." The last sentence was said jokingly.

He continued, "And, if you heard me right, starting from the second part, your research mainly uses my method."

In the new week, all the weak and weak please ask~~~