Tech Hammer

The STOC conference is called the world's top conference for a reason. After a twenty-minute break, the second report will officially begin.

The person giving the report on the stage this time was Professor Robert Sandy, one of the students of the big boss Michael I Jordan whom Ning Wei met yesterday. The title of the published paper is "Learning nonlinear operators via DeepONet based on the universal approximation theorem of operators".

The narrative is roughly that a neural network with a single hidden layer can accurately approximate any nonlinear continuous operator, and the universal approximation theorem of the operator hints at the structure of deep neural networks when learning continuous operators or complex systems from dispersed data streams. and potential.

Very novel content, Professor Robert's research team was inspired by this to design a deep operator network with small generalization error, which consists of a DNN for encoding the discrete input function space and another for encoding the output It is composed of a DNN in the function domain, and it is also proven that the network can learn various explicit operators, such as integral and fractional Laplacian operators, as well as implicit operators representing deterministic and stochastic differential equations.

Professor Robert's report inspired Ning Wei so much that it gave him the urge to make major changes to the main program of March.

It had that mysterious and mysterious feeling. Different from the content of his speech, most of what Professor Robert talked about was some very interesting data feedback that occurred during the verification process of the operator network, and naturally he received bursts of applause.

Ning Wei didn't think anything of it. After all, compared to such achievable technology, theory was always extremely boring, not to mention it was a great inspiration to him.

In this way, after Professor Robert's report was completed, according to the schedule, this morning's report meeting came to an end. It’s not dinner time yet, but after listening to the two report sessions, we always need to leave some time for everyone to communicate.

Of course, if you don’t want to go to the restaurant now but still want to know more, you can also go to the poster area and have face-to-face communication when you encounter projects of interest.

Then the poster area became lively. When Ning Wei walked out of the large conference hall, he could already hear the sound of loud talks.

"Then I'll go find Brother Feng first?" Yu Xingwei said to Ning Wei beside him.

To meet Ning Wei's requirements, finding Feng Shaojie is undoubtedly the fastest way to get involved with those young people.

"Well, you go ahead. I won't attend the afternoon report meeting. We will meet in the room in the evening." Ning Wei nodded and said.

The contents of the report meeting just now are worth going over in his mind. By the way, he can find a place to carefully study the paper of Professor Robert Sandy. He has just obtained the complete printed version of the paper through Professor Shen, which is about ten years old. Multiple pages of content.

It's still a while before dinner. If you want to go back to your room, you have to come down later.

He vaguely remembered that there was a coffee shop on the way from the hotel to the conference center. It was open in the passage. It looked quite quiet and stylish, so Ning Wei took the paper and walked towards the coffee shop according to the clues in his memory. .

It turns out he was overthinking.

Many people probably had a similar mentality to him. After the report meeting, they all gathered in the coffee shop, and there were still people gathered in twos and threes to chat about some issues. When Ning Wei walked into the coffee shop, he immediately received a lot of looks, and some people nodded to him in a friendly manner. Ning Wei also smiled and nodded slightly in return.

Fortunately, he arrived not too late and there was still room available.

Ning Wei chose a seat in the corner next to the large glass, spread the paper on the table, and began to read it carefully.

"Excuse me?"

When a crisp female voice sounded next to him, Ning Wei happened to read through the paper. When he looked up, he saw Isabel pointing to the position next to him.

Ning Wei raised his head and scanned the surroundings. It seemed that there was no room left in the cafe, so he nodded and said, "It's okay. Please sit down."

"Still busy researching the paper?" Isabel, sitting opposite Ning Wei, asked curiously.

Ning Wei nodded, there was nothing to hide, Professor Robert Sandy's paper was still on the table.

"So is this the life of you scientists? Do you have to face countless reports and papers every day?" Isabel stuck out her tongue and asked.

Ning Wei thought about his recent life, and then replied: "It seems about the same, right?"

"Then don't you think such a life is monotonous? I heard from Lucy that you gave up your vacation time to write the paper that was introduced in the report today, so she had to give up her own vacation. Do you know? She was full of resentment when she bought the ticket from White Mountain National Forest Park back to Harvard." Isabel asked curiously.

Hearing this question made Ning Wei fall into thinking. It seemed that he had never rested for a long time.

When I was in college, I still had weekends to relax, but since I arrived at Yanbei Mathematics Research Center, I almost don’t know what a vacation is anymore. Of course, it's not just him, Senior Brother Lu and the Ph.D. seniors seem to be the same. What's even more strange is that he doesn't seem to feel tired every day.

"If you haven't done research, you may not understand the joy you get after solving a difficult problem. To paraphrase one of my senior brothers, the joy he brings every time he overcomes a difficult problem is something that nothing in this world can give. .So it probably won’t feel monotonous, right? By the way, where is Ms. Ron?” Ning Wei asked.

The two of them had been together, but the princess suddenly came over alone, which made him feel strange.

"She went to a brainstorming party. Obviously that was not suitable for me. I don't know much about mathematics or computers." Isabel replied with a smile.

"Then she is not a very considerate friend. After all, you accompanied her to a long and boring report meeting. By the way, it suddenly occurred to me that I had to go to dinner quickly, and there was a topic to consider, so I left first. "Ning Wei answered, and then planned to leave and end the conversation.

Out of politeness, he answered a few questions of the Snow Country Princess, which already showed his demeanor as a Chinese man. He was not interested in continuing to chat with the Snow Country Princess, who was like a curious baby. Because from a rational point of view, this kind of chat has no nutritional value. It has no benefit except delaying his thinking.

If something is not beneficial, you should naturally avoid it as soon as possible.

"Wait, can I take a photo with you? You are the first Chinese scientist I have ever met. I think this is very memorable." Isabel raised her head and asked.

"Huh? Okay." Ning Wei nodded. It seemed that it was not too much of a request. He was not a star, and his image was not that precious.

"Great." Isabel stood up lightly, came to Ning Wei's side, set up the time-lapse shooting, then raised her hand, adjusted her posture, and confirmed that the two of them were in the same frame...

What neither of them seemed to notice was that when they were sitting at the same table, many mobile phones were pointed at them. When Isabel stood next to Ning Wei with her mobile phone to take a selfie, a reporter happened to come from the coffee table. I was passing by the hall and saw this scene. I immediately picked up the camera hanging around my neck and clicked two pictures.

"Okay! This will definitely become a very precious memory for me." After the photo was taken, Isabel said to Ning Wei with a smile.

Ning Wei thought for a moment and said, "It's an honor."

"By the way, I have a painting exhibition at the Montreal Museum of Fine Arts the day after tomorrow. Can I be honored to invite you as a guest?" Isabel asked, blinking.

"I really don't have time for this. I have a very important lecture the day after tomorrow that I need to attend. And to tell you the truth, I really don't know anything about appreciating paintings. For example, I still have no idea what the Mona Lisa's smile is. It’s worthy of the world’s admiration.” Ning Wei spread his hands and refused.

"That's such a shame." Isabel said with a look of regret.

"Yes, there is no way, no one can be proficient in everything, but my music appreciation is growing day by day." Talking about this, Ning Wei said quite confidently: "To tell you the truth, my girlfriend She is a pianist with great potential, and her music can warm the world."

"Oh? So you fell in love with her because of her piano music?" Isabel asked with interest, tilting her head.

Speaking of this, Ning Wei suddenly felt that he was not in a hurry.

After all, no one in the yard seems to have paid much attention to his recent mental health problems.

Although Yu Xingwei stayed with him every day, when the topic of classmate Jiang came up, he would always talk about him immediately, or directly interrupt him by making jokes. Ning Wei was too lazy to fall in love with the other two in the dormitory in the WeChat group. Experts should talk about this issue, otherwise there is a high probability that it will only attract ruthless ridicule and compete with all kinds of useless love experiences. However, Liu Cong shamelessly chats about school girls in the group every day. Eat...

God knows how many worries Ning Wei has been holding back during this period but no one can talk to him. He can only say a few words to San Yue every day. However, the kitten has no other feedback except "take a look" twice and mock him with its wise eyes. .

Because of the above reasons, the topic the two were chatting about directly hit Ning Wei's Achilles' heel, causing him to take the initiative to invite: "I'm going to go to the restaurant to have something to eat first, how about we talk while we walk?"

"Okay!" Isabel nodded cheerfully.

On the way to the restaurant, Ning Wei started praising his girlfriend in a fancy way.

"Speaking of the question just now, I can't actually say that I fell in love with her solely because of her piano sound. Although I did have the opportunity to get to know her first by listening to her playing the piano every day, and her piano sound is really beautiful. The kind that can soothe people's hearts. But the point is that when we first met, I felt like my head was going to explode at that moment. I said I'm not afraid of your jokes. In fact, before I met her, I really hadn't talked to her in ten years. A plan to fall in love or even get married." Ning Wei sighed.

Isabel nodded suddenly and asked: "Then I guess, not only does she play the piano extremely well, she must also be very beautiful."

"very beautiful?"

Ning Wei glanced sideways at the princess and said seriously: "No, it is definitely inaccurate to describe it simply as beautiful. If it must be described, I think it should be described as absolutely beautiful. Well, these words are too It's abstract. In short, she must be the most beautiful girl in the world. And the feeling she brings to me is not just a matter of appearance, but also because she has a temperament that most people can't feel, but I can."

"Wow, after hearing your description, I want to get to know her. If you have a chance, please introduce us to her, okay?" Isabel said.

Ning Wei nodded and said: "No problem! If you also know music, you will definitely like the sound of the piano she performed. You have seen Brother Yu who is with me. He boasts that he is very good at playing piano. But the music played by Brother Yu is completely incomparable to hers. I’m not the only one who thinks so, my senior brother thinks so too.”

"At first he was quite unconvinced, but after we enjoyed her playing the piano once, he was completely convinced. If you have the chance to go to China, I will let her play the piano for you!"

"Okay! If you have the chance, you must go and appreciate it! So her profession is a pianist?" Isabel said politely.

"No, no, no, piano is just her hobby. She is still a student and is now in her junior year. Her academic performance is also very good, but she is really low-key and doesn't like to show her talents in front of others... …”

I have to say that Isabel is a very good listener, at least much better than Lucy Ron, which made Ningwei very comfortable. He held it in his heart for who knows how long, but couldn't find anyone to share it with, so he vomited it all at once. Ning Wei, who was immersed in his complaints, didn't notice how many looks of admiration or attention the two of them walked side by side along the way.

The complaints along the way made Ning Wei feel like he had been in a spiritual spa. He felt refreshed both physically and mentally. He happened to arrive at the good restaurant prepared by the organizing committee for the participants. Ning Wei casually picked up two sandwiches from the display area. , then smiled at Isabel and said: "I guess Ms. Ron's brainstorming is almost over. You know, she and I really can't meet each other, otherwise we will definitely quarrel, so I went back to the room to do the project first. .”

"Okay, please, Mr. Ning, remember what you said. If you have the chance, you must introduce me to that classmate Jiang." Isabel nodded with a smile.

"No problem! Goodbye!" After saying that, Ning Wei turned around and left without hesitation.

Isabel stood there, with the image Ning Wei just described inevitably popping up in her mind. Then she couldn't help but take out her phone and start searching on Google for the pianist from Huaxia Yanbei Women's University...

After all, who doesn’t wonder what such an outstanding girl looks like? But to her disappointment, the almighty Google found nothing.

Thinking of Ning Wei's evaluation of her, it was very low-key...

Isabel put down her mobile phone and turned her attention to the food provided in the buffet restaurant. She saw that the food at the buffet was indeed unappetizing, and then naturally walked out of the restaurant. It is said that there is also a French restaurant in the hotel with more delicious ingredients. .

…