In the two and a half years since his rebirth, except for the first time when he rescued the car, now is Xu Zhe's most nervous moment.

The eyes of hundreds of people converged on him, a feeling he had never experienced before. There is curiosity and inquiry in these eyes, but more of them are banter, waiting to see the excitement.

Xu Zhe is not surprised by this. He knew that in this kind of scene, it was normal to gloat at the that jumped out rashly. But reason is reason, so many people are staring at themselves, which still brings considerable psychological pressure.

His calves couldn't help but tremble. You have to tense your muscles very hard, very hard, so that you can pretend to be calm and not let people see the clues.

Then he noticed a pair of beautiful eyes in the distance.

That's Shen Lan.

Unlike others, Shen Lan's eyebrows frowned slightly, and her face was slightly worried. But in those delicate eyes, there was a color of expectation. So Xu Zhe realized that she was very confident in herself, and she believed that her next performance would definitely not become a joke.

Suddenly, Xu Zhe felt the trembling sensation in his legs stop.

The staff member walked up quickly and handed him the microphone. The moment he took the microphone, he developed a strong sense of confidence, as if the world was waiting for him to speak.

The last time I was so confident was when I first started working on "Cutting Fruit". So what about this time? Can you really take advantage of the Prophet of Unknown?

Xu Zhe smiled, cleared his throat, and said into the microphone: "Hello Mr. Zou, I'm sorry to disturb your speech. But I have to ask a question. What you're doing so far is using multiple compute nodes to form a deep neural network? ”

Zou Tianyan nodded, and also said into the microphone: "That's right, classmate, do you know about neural networks?" ”

Xu Zhe: "I've taught myself a little bit about this, but I'm ashamed, my ability is limited, and my understanding may not be deep enough." ”

Zou Tianyan has the same smile on his face as he treats children, encouraging and friendly. "It doesn't matter, as long as you have a certain understanding, it's hard to get," he said. It's good to be willing to leave the book and explore more and deeper knowledge on your own. Classmate, are you a freshman or sophomore in high school? ”

Xu Zhe: "I'm in the third year of junior high school. ”

There was a low exclamation in the auditorium. After all, it is a gathering of provincial winners in the high school group, and standing here as a junior high school student seems to be enough to show talent.

Xu Zhe continued: "Teacher, I just want to say that the AI algorithm for image recognition should be built in a way that invests a large amount of data and processes a lot in parallel, so that the algorithm can spontaneously learn deeply. Or to put it simply, it is to make an AI algorithm with growth, feed it data hard, and let it understand on its own. Is that okay? ”

Zou Tianyan: "To explain in a popular way, so to speak. ”

Xu Zhe: "The difference between CPU and GPU is that CPU is the main computing chip used by computers on a daily basis, and it is sequential computing, which is suitable for complex and branch-rich tasks. GPUs are generally used to play games, render pictures, and the like. What capabilities does it need to render a video picture? It is fast, massively parallel computing. Think about it, which chip is more suitable for your convolutional neural network? ”

Zou Tianyan: "But using GPUs requires additional processing systems. ”

Xu Zhe: "Do you know Yin Weida's CUDA? Its graphics card has long been programmable......"

————

When Xu Zhe was holding the microphone and talking, Shen Lan stared at him intently.

As the discussion deepened, Mr. Zou on the stage became more and more serious - obviously, the teacher found that this young man in the third year of junior high school had a knowledge reserve far beyond ordinary people, and he couldn't refute many of the points he talked about, and it made sense when he thought about it, so he put away the overlooking mentality of the elders towards the children, and discussed it seriously.

The rest of the students almost couldn't understand what the two were saying. What convolutional neural networks, what deep learning, what CUDA, what convolutional kernel sliding......

Everyone was like listening to a book from heaven, and their eyes became more and more awe-inspiring when they looked at Xu Zhe, as if they were looking at a monster.

After all. Although you can't hear what they are saying, you can already detect a lot from the change in Mr. Zou's attitude.

And Shen Lan's face showed a smile that was getting happier and happier.

"I knew he was a real genius...... "The girl muttered to herself.

"Eh, what did you say?" The girl next to her heard her talking, but didn't hear clearly, so she asked.

Shen Lan turned her head to look at her temporary roommate, took a deep breath, and said, "He's my boyfriend." ”

The girl's mouth immediately opened into a large O-shape, and then immediately covered it with both hands. After coming back to her senses a little, she asked with great curiosity, "Really?" Boyfriend? ”

Shen Lan blushed slightly: "Okay, in fact, to tell the truth, it should be a relationship between friends and lovers." ”

This always proud girl is also a little puzzling at this time. I obviously hate being involved in superfluous relationships with others, and my motto since I was a child is to use my mind to win the respect of everyone, how can I make this kind of mistake? What do you think about taking Xu Zhe to give yourself face?

————

Teacher Zou Tianyan became more and more silent in his conversation with Xu Zhe. He found that this young man in the third year of junior high school was not just a matter of knowledge.

Some of Xu Zhe's views seem simple, but when he chews it carefully, he finds that the more he thinks about it, the more it makes sense, and then he can't help but doubt himself - why didn't I think of this before?

In the end, when Xu Zhe summed up his views, Zou Tianyan had already secretly made up his mind.

“…… So that's how I thought. With convolutional neural networks, you only need a few GTX580 graphics cards to achieve better recognition results than a bunch of high-end CPU chips. ”

Then, Xu Zhe put down the microphone and looked at him calmly.

Zou Tianyan was silent for a long time, and suddenly said, "Classmate, after the lecture is over, can you discuss it with me in detail?" ”

Xu Zhe hesitated for a moment, and finally nodded: "No problem." ”

Zou Tianyan continued the speech just now, but everyone could see that the teacher was already a little absent-minded.

As he spoke, Teacher Zou couldn't help but look at Xu Zhe again. Then he noticed that the kid was looking down at his phone. But he didn't have a problem with that.

Genius is supposed to be like this, not informal, not swayed by boring and inefficient secular rules.

It's just that what Mr. Zou didn't expect was that this kid had to miss the appointment and apologize for the night walk that he couldn't take later.

————

(End of chapter)