500m Activated Ballon Facial Telescope 3 China Sky Eye ". At present, it is not only the world's radio telescope with the highest sensitivity worldwide, but also the most powerful tool for pulse star search.
Figure | 500 -meter -caliber Ballo Face Electric Telescope (Source: Chinese Academy of Sciences)
2011 March 25, China began construction. The state of the Qiannan Bubai Miao Autonomous Prefecture in the state province.
2020, January 11, 20120, it successfully passed the acceptance and officially opened. As a giant radio telescope equivalent to 30 football fields, FAST can help the country carry out in -depth inquiry in the field of astronomy and physics, and help humans to better explore the mysteries of the origin and evolution of the universe.
, the discovery and research of pulse star is an important scientific goal that FAST needs to complete. Studies of astronomers have found that some high -quality stars will explode at the end of the evolution, and follow the strong space fireworks. In the process, if there is a huge quality star wreckage, it will collapse and become a rapid rotation. neutron star , and the pulse star is essentially a neutron star.
1967, Cambridge University Researcher Joselin Bell , accidentally found some regular pulse signals in the radio telescope. And named after the pulse star Essence
is because it has an extreme physical properties that cannot be achieved in the ground laboratory, so research on pulse star may help disclosure of major physical problems. Today, as an important driving force for innovation, AI is in the stage of rapid development, and is actively integrated with many fields and scenes such as finance, media, and transportation. Even the use of Chinese eyes to conduct astronomical research is inseparable from the help of AI technology.
AI why can it be used for FAST? 复旦大学计算机科学技术学院副教授、博士生导师池明旻解释说：“通俗地讲，人工智能就是数据分析，只要有密集的数据，都可以通过AI 算法实现。
首先，在FAST During the observation process, about 500TB of original data is generated every day. With noise interference, the recall rate of traditional image processing technology and machine learning algorithm is too low. The use of artificial intelligence algorithms can better solve the problem. Cross -border learning costs are required for AI professionals.
uses AI "Find Star" to increase signal recognition speed 120
In 2021, Tencent and the National Observatory officially opened the "AI Star Project". The two sides jointly used the "AI+ Cloud" to find pulse stars, aiming to further improve the efficiency of star detectives.
is mainly reflected in four aspects. First, use AI auxiliary pulse star search. Second, use AI to empower the search for fast -moving electric storms. Third, use AI to help search for the pulse star in the near -dense double star system. Fourth, based on the accumulation of Tencent's landing in the AI algorithm, the search process of the entire Xintiandi search process is accelerated.
After 8 months of unremitting efforts, the Youtu Ai Celestial Exploration Scheme help Fast processing the huge data received, and found more than 22 pulse star candidates from the sky patrolling data. At the same time, under the same computing power, AI has increased the overall signal processing efficiency by 120 times.What are the technical principles behind
? After the signal is observed on the spot on the spot, a series of astronomical and physical methods will be used for processing to obtain image data suitable for computer vision . After screening and comparison of image data, leave a small number of samples, and finally use manual to compare and confirm these remaining samples again.
mainly has three key technological innovation points, which are multi -mode + self -supervision pre -training algorithm, semi -supervised domain migration algorithm, and active learning algorithm. Compared with the original AI screening model of the National Observatory, the first technology has a higher recall rate, and the misunderstanding rate can also be reduced by 98%.
Youtu Laboratory Research Director Wang Yanjie said: "The so -called multi -mode is based on multiple information inputs, and whether the signals observed observed are pulse stars. Information and feasibility, so the effect of direct analysis based on signal is more significant. Promotation.
contains 7 high -speed rotating millisecond pulse stars in these 22 pulses. star. At the same time, the researchers also used the Youtu Dynamic spectrum AI model to first detect the radiomation pulse of a magnetic tourbine.
Pulse is a star with ultra -high density. It can be seen as a bridge, boosting timing and gravitational wave detection. Galaxy interstellar medium density and distribution, and magnetic field distribution and strength and other strengths. The detection of aspects deepen the further understanding of the vast universe. In addition, the more the number of pulse stars discovered, the more conducive to the improvement of the detection sensitivity.
will turn on the M31 Fairy Men's Mid -pulse Star -density Celestial Celestial Headian On September 3, Tencent and the National Observatory also announced the new developments of the "AI+ Cloud" Star Program, which will jointly open the M31 fairy galaxy Radio -signal processing.
It is reported that this will also be the deepest and most complete detection of the astronomical circles to the dense celestial body of the galaxy. At the same time, the Star Program also won the SUPER AI Leader of the World Artificial Intelligence Conference.
is because the number of observation signals in the sky in the sky in the M31 fairy galaxy is very huge, and at the same time, it is too far away from the ground observation station. Therefore, before the start of the Star Plan, they did not get a complete processing. It is expected that as of the end of this year, the exploring scope plan can complete all the exploration of the M31 Nebula observation signal. The collision between
AI and astronomy not only reflects the new paradigm combining AI and basic disciplines, but also reflects people's infinite exploration of cutting -edge technology. The process of searching for Fast to search for pulse stars with "AI+ Cloud" I also reveals the corner of the veil of the universe of the universe that dominate the energy, which is conducive to stimulating more and more people's curiosity and research interests of astronomy.
National Observatory 500m caliber spherical spherical radio telescope engineering (FAST) chief scientist Li Yan said that in the process of popularity, spreading, and education, it is easy to cause more people to explore the mysterious field above the head. It is very good to develop the spirit of scientific research.
is not only that. While the cooperative development of technology and people's lives, we must also serve people really.Whether facing the present or looking forward to the future, you should always adhere to the concept of science and technology.
is for technology to be good. Li Yan recognizes: "Whether it is a special group or average person, Xiang Shan has improved their material and spirit. From the opening of Tanxing cooperation last year to the present, 22 pulse has been discovered. Star, each pulse star is 100 million tons in a cubic square meter. What is the use of it? Things, this is also a little feedback from our work to society. At present, the astronomical application of artificial intelligence is limited to the "device" stage. In 2-3 years, artificial intelligence should show real intelligence. Not only is the image recognition faster, but this kind of physical work, but provides new technology languages that humans do not have.
Li Yan said that some studies have shown that AI can reason the world model of "sun heart" based on a bunch of planet data. It is hoped that in a few years, artificial intelligence will not only assist astronomy data, but provide new languages to let us discover and write the essence of the universe.
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