The youngest motivation of the Congress of the Congress of the Dialogue: It is discovered by AI to find the physics law, and the Nature Subscription

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Scientific exploration, perhaps the ai field, one of the most "star sea" imagination.

Mysterious life password, everywhere, the power of power, chaotic molecular sports … Scientists go to success, explore simple, elegant, harmonious mathematical equations to describe the general laws of the world.

From the viewing cloud distinctive objects to the numerical climate model, from Newton, Einstein, a relatively discovered law, and leaving a concentrate in the process of human development. The world is so wide, there are too many mystery, not being explored and defined by human beings.

When AI grows into a key cutter that digs massive data information, it has opened a new door to explore the scientific issue.

The world’s top AI institutions are put into action, DeepMind uses AI to crack protein folding problems, Huawei cloud training tray ancient drug molecular model to promote AI new drug research, NVIDIA announced to create "digital twin global" to study climate change …

These decoded unknown explorations are also the direction in which Sun Hao is studying.

Ministry of Renmin University of China, Minister of Artificial Intelligence, Implicate Associate Professor, Sumao

Sun Hao is 33 years old. At present, Sun Hao is currently the youngest long-term associate professor and motion of Renmin University of China.

In October This year, Sun Hao team’s paper "PHYSICS-INFORMED Learning Of Governing Equation" is published in the International Academic Journal Nature Communications.

After a few years, he returned to the motherland, he wanted to use AI to unveiled more potential laws, find more reliable theoretical support for physics, chemistry, biological, engineering applications.

Sun Hao team published on the International Academic Journal Nature Communications in October this year

First, from"Architect"arrive"Equation detective"

Sun Hao is not a "AI + Science Exploration" direction.

His undergraduate studied in the civil engineering major of Hehai University. After graduating, he took full scholarship to the University of Columbia to study the master’s degree and doctorate of Engineering Mechanics. Subsequently, he was doing a Ph.D., 29 years old, and under 30 years old. Elite "scientific list, 31 years old is elected" Top Ten Chinese Outstanding Youth ".

During the study period, Sun Hao is the kind of play, and the students who will not die, I really like to swim. When doing a PhD, Sun Hao insisted on swimming every afternoon, and often playing table tennis, soothing to relieve stress, restart the brain.

Before and after 2015, Sun Hao’s research background is mechanics, doing some applications such as intelligent buildings, smart urban intelligent infrastructure, such as sensor monitoring and warning buildings, bridges and other building structures. When making software analysis, he began to contact artificial intelligence and machine learning methods for resolving relevant data processing issues.

In this process, Sun Hao found that data did not imagine so much, information is not so sufficient, if only data is processed, the previous basic mechanics law is not enough to solve some dynamic problems of the building.

At first, it was interested in making it. Later, as the study gradually extends, Sun Hao realized that this is not only mechanically related issues, weather forecasts, other systems in physical worlds such as weather forecasts, there are many other systems in physical worlds such as cell movement. There are similar problems.

So, is it possible to make a set of AI theory, it is possible to find a specific scientific law from the data, form a new theory, and can also take into account the basic theory we have learned before?

With this as the starting point, Sun Hao’s research direction began to transition to "AI + Science Exploration".

He believes: "The future scientific exploration should not rely on people. Newton wrote the second law of Newton, Cople wrote the law of Copler, they did have any people, it is a genius, it is a giant."

The unknown problem in the physical world is so vast, so far, human beings only solve the hoss of the iceberg. If there is still only relying on people’s power, how many geniuses do you still have?

"So we are thinking, with this, it is better to let Ai play genius, and AI will help us find this law and put this formula." Sun Hao said.

AI explores nonlinear partial differential equations for describing the complex reaction diffusion process of biochemical systems

Second, return to the motherland, use artificial intelligence to explore the scientific law

Since 2017, Sun Hao successfully passed the University of Pisberg, the Northeastern University of Northeastern University, and the part-time researcher at the Massachusetts Institute of Technology, Sun Hao chose to return to the motherland in this summer.

"The domestic scientific research environment has become much better than before." Sun Hao mentioned the significance of domestic research and support in policies and funds, and in the long run, he has more confident in China’s scientific research.

After taught by Professor Wen Ji, Professor Wen Jirong, he immediately decided to join a young Ai Academy, just created two years – China Renmin University of China.

Gao Hui artificial intelligent building

The Gao Hui Artificial Intelligence College was established on April 22, 2019. It is the second-level college, the founder of the Renmin University of China, and the founder of the Gao Yu Capital and CEO Zhang Lei’s support construction. The Chinese Academy of Engineering Pan Yunhe is the director of the Academic Committee, Professor Tejong Executive Dean, the teacher sequence implements "long hire".

"I feel that the teacher is very pleasant leader. I think I should join this place." Sun Hao believes that an excellent leader has a guiding role in the growth of young people. Whether it is anchoring the direction of the AI ??change, it is still necessary to have a feeling.

Apart fromleadershipIn addition, Sun Hao also is optimistic about the other three advantages of the Gaozheng Artificial Intelligence College:Vision, system, culture.

In his opinion, the Gao Hui Artificial Intelligence Academy has the development of the AI ??development and took the lead in proposing a temperature AI. Ai is not only a tool, it should be deeply associated with people, combined with various disciplines such as law, communication, economics, social governance, to solve extensive issues in the real world.

Can a place to attract passion, a soft young scholar, a system is critical, and the stereotype will give innovation to form a barrier, and the Gao Hui Artificial Intelligence Academy encourages the teacher to freely explore the research direction and does not set the boundary of the roll box.

In the next two months, Sun Hao felt that the culture of the college is very inclusive. The college supports professors to choose their own research direction. They have encouraged attitudes in internal and external cooperation. The research funds are also more abundant. If you want to do a research on future development, the college will specially apply for a part of the funds to specifically support This direction.

Current Sun HaoArtificial Intelligence Mathematical Basis and Improving CrossContains interpretative deep learning, knowledge characterization and reasoning, physical driver depth learning, symbol strengthening learning and reasoning, data-driven complex power system modeling and identification, control equation finding, infrastructure health monitoring and intelligent management.

After joining the People’s Congress Human Human Corporation this year, Sun Hao quickly formed a "Physical Driven Artificial Intelligence" research team, and published a papers in the international academic Journal Nature Subscription in October.

Up to now, he presided over or jointly hosted more than 330 million US dollars such as research projects; 50,000 papers were published in various publications such as international first-class SCI journals and computer topics.

Third, cooperate with the Meteorological Bureau to crack the weather password

The study of Sun Hao team advancing physical systems, chemical systems, biological systems, etc., to explore the various potential laws of thousands of physical worlds, and describe it in the form of mathematics.

At present, Sun Hao, Wen Ji, Lu Zhiwu, three professors and high-time high-end high-resolution data from China Meteorological Bureau to explore specific laws and equations with high-level high-resolution data, and to predict weather changes more accurately.

The traditional meteorological prediction method is based on the numerical calculation. According to the actual situation of the atmosphere, the fluid mechanics and thermodynamic equations that describe the weather evolution process are solved under certain initial values ??and boundary values, thereby predicting atmospheric motion state and weather in the future.

This exists a problem, the imaginary numerical model is in error, and the basic weather law can be captured, but it may be underestimated to some small probability of extreme weather.

How does these errors cause? Imagine models may be unreasonable, or people have not considered in place.

In this regard, Sun Hao uses AI methods, explores the laws with the actual meteorological evolution, and attempts to describe a better equation to achieve ultra-short weather forecast, and improve long-term prediction and extreme weather forecastion. Precision.

The Sun Hao team has three goals with the scientific system obtained by AI:Interpretative, push capability, generalization abilityEven if there is no event, the system can make a stable prediction.

This is quite challenging direction. The traditional AI model is a black box, but Sun Hao wants to change this concept, I hope to do "AI + small data" can still get a very reliable AI model, and can extract some unknown rules from small data.

AI explores nonlinear normal differential equations for describing chaotic power systems

This is also a very exciting direction. In scientific exploration and engineering applications, true valuable is not the amount of data, but not the information is sufficient. There is a lot of massive data, but even if there is no massive data, it is still possible to explore a simple and general law.

Mathematics is the foundation of all science, equation is an abstract expression of various scientific theories, and it is often a beautiful and beautiful equation that describes some objective laws of physical worlds.

In addition to meteorological precision forecasting, Sun Hao continued to pay attention to the progress of protein structure, automatic driving, etc., and he also considers the combination of automatic driving control systems and the like to optimize It can be interpretative.

Four,"To make big results, there must be big mind and vision"

In the College of Artificial Intelligence, Renmin University, Sun Hao is teaching graduate students "artificial intelligence interdisciplinary application thinking and actual combat".

"This class is not good." Sun Hao said that this is a new course, compared to existing artificial intelligence theoretical courses or case classes, it pays more attention to the guidance and training of students’ interdisciplinary research thinking.

For example, throw a problem, use ai method to solve it, how to embed it in the knowledge you need, and play a real role in designing the AI ??algorithm? This is the analysis capability that students should master.

He will also train students to study the articles of the top party, not only to understand the frontier method of solving the problem, but also clear how the story is talking about, and why they can make this method to solve the problem.

Sun Hao did not want to give students a limited time. When he guids Ph.D., he usually understands the students’ own ideas and career planning. Specify a direction for students who have just enrolled, but will not limit what method is used, gives doctoral students freely explored space .

"We solve this problem itself is very interesting, it is unknown world." Sun Hao said, "You make a regular, or find a new knowledge, it will become very excited, this feeling is constantly stimulating In the process, it will keep interest in interest, so it is said that there is such a trait that scientific exploration is why so many people love scientific exploration. "

He hopes that students must first love their research, clear what they want, do not have to be tangled this year, a nature is not half a year, "To make big results, there must be big mind and vision."

Everyone has different research traits, so Sun Hao will teach in accordance with the materials. For example, a student’s logic thinking is strong, learning and solving the problem, Sun Hao guides him to do some challenging things; and if a student does not have this potential, Sun Hao will slow down, come step by step. He started research.

He is happy to share your experience to the students. The doctoral student he is driving is very strong. When the students feel that the pressure is big, Sun Hao will stop the work of the hand, go out to climb the mountain and relax, and come back to see this problem, often appear new Inspiration.

At the same time, Sun Hao’s requirements for students have very high requirements: "If this student is reading a doctor, he needs to fully explore his potential and increase his research capacity to the ultimate of herself."

Do it, it is not to press the student, but it is hoped that the students can use solid basic skills after training, so that his future has a more wide direction of research. "Ai + Science Exploration" is essentially a research foundation AI method, even if students want to try some different directions, they can also swim.

For students, Sun Hao also expressed encouragement and support. In his opinion, in "AI + Science Exploration" direction, molecular effects or incentive new drug development, fluid model or drive rocket aircraft design, all kinds of applications such as this can produce value by increasing efficiency.

Conclusion: I look forward to more interdisciplinary talents.AIExplore the scientific star sea

Interpretation is the development direction of the future AI, and the combination of AI and scientific exploration is exactly an important carrier.

The current "AI + Science Exploration" is also facing multiple challenges: this is a region that requires depth interdisciplinary cross-disciplines. It is necessary to combine very strong expertise; in addition, how to make the system have both powerful learning skills, but also The beauty, this is a complex balance problem that needs to explore the new AI algorithm.

"We have made some work. I believe that in the future, we should at least have a role of guidelines." Sun Hao took some examples, including symbol enhanced learning reasoning strategies and sparse regression.

However, talents in the field of "AI + Science Exploration" are still quite scarce, and students are mostly born for computer classes. Sun Hao also hopes to see more other directions are interested in studying in this field.

"If mathematics is still good, basically think that the threshold of AI itself is very low, I am not a computer profession." He has only two basic requirements for his graduate students. First, there is enthusiasm for Ai + science, second is enough. Diligent, brave overcoming difficulties.

"Sweat and harvest are a pair of friends, diligence and knowledge is a pair of couples." He looked forward to more young people to join this direction, willing to pay sweat, to overcome a series of research problems.