Tencent Cloud: AI Technology Aids China's Eye in the Sky FAST to Find 51 Pulsars

National Key Science and Technology InfrastructureChina's Eye in the Sky (CNS) FAST Discovery as of this monthpulsar (astronomy)The number of pulsars has exceeded 1,000, more than the total number of pulsars discovered by other international telescopes in the same period.

Tencent Cloud: AI Technology Aids China's Eye in the Sky FAST to Find 51 Pulsars

Tencent CloudSubsequently, the article said that since 2021, Tencent, the National Astronomical Observatory and Fudan University jointly launched the "Star Exploration Program", which is the first time that Tencent has launched the "Star Exploration Program".In Tencent Cloud + AI TechnologyThe program has found 51 pulsars with the aid of the industry's newest algorithmic models, and 28 of these were found within the last year..

According to the report, the signal map of the suspected pulsar FAST We're generating over 30 million a week.In the early days, even with specialized software in the field of astronomy, 1 terabyte of data took more than 10 days to process, even with 24-hour work. In the early days, even with the use of specialized software in the field of astronomy, it took more than ten days to process 1TB of data.

Early in the collaboration, the project team designed aAI solutions based on multimodal + semi-supervised learningAI will continuously and deeply "self-learning" astronomical knowledge, after receiving the original signal, without manual labeling, AI will first use astronomical knowledge to prejudge and screen, automatically construct effective information in large-scale data, and finally make manual comparison.

In this way.More than 120 times faster processing of FAST dataAI can do it in less than 3 days. What used to take a year to process manually, AI can do in less than three days.False alarms have also decreased 98%.

In the past year, Tencent Youtu Lab has designed an end-to-end algorithm model FastSearch, which completely abandons the filtering noise, Fourier transform, and other astronomical professional processing and complex annotation of the original signal, which is equivalent to the absence of a "middleman" and saves a lot of arithmetic power and time.

1AI has learned that with this model, the signal processing efficiency is 15 times higher than the AI model at the beginning of the collaboration.Hundreds of times better than pre-2021 processing methodsThe speed at which the Eye of Heaven captures cosmic signals has already failed to keep up with the speed at which AI "sees". Even the speed of the eye in the sky to capture the cosmic signals has not been able to keep up with the speed of the AI "look at the map".

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