Yang Yanxue's tone is still a little like learning, but his voice in his throat, as well as his pretended playful appearance, is really a bit disobedient!

"Hahaha, you're poisonous! don't learn to talk......" Xia Yu looked at Yang Yan, leaned forward and backward with laughter, couldn't stand steadily, and finally squatted down directly.

Yang Yan couldn't help laughing, he hugged Luo Luo with a smile, and squatted on the carpet in the living room with Xia Yu, looking at each other as if he was playing at home.

Luoluo was still in a dizzy state, his little head was on his back, his little body was soft, half lying in the crook of his father's powerful arm, and he seemed to be unable to move.

She didn't listen to what her father and mother were saying, she just felt that the world was spinning, and the laughter of her father and mother was far and near, up and down......

It's an amazing feeling!

fell into his father's arms, and he smirked for a while before he gradually recovered.

"Okay, I'm going to faint, I know it's scary, right? I can't go around in circles anymore, Dad can't ...... at any time" Yang Yan smiled, babbling to reason with Luoluo, who had just stood up.

However, Luoluo seemed to be a little unfinished, she looked at her father with a smile, but her little hand was pushed out, trying to squeeze out of her father's arms.

"Hee-hee!" she stood in the middle of the carpet, first watching her father smile sweetly, and then, with her small steps, began to spin in circles again!

The little girl didn't know how to spin wildly with one foot, so she ran out of the circle clumsily, like an invisible pillar in the middle!

And, as she turned, she let out staccato laughter and breathing.

It's so much fun!

"This little girl, are you still addicted to playing?" Yang Yan looked at Luoluo with a smile and said to Xia Yu on the side.

"Wait a minute, how do I remember, it seems that I can't just go around in circles?" After Xia Yu laughed, her brain became clear, she remembered that a colleague had brought a child to the unit before, and there was an active male policeman holding the little boy in a circle, and then he was blamed by everyone, "It seems to say that the child's brain development is not complete, so it is not good to turn like this......"

Xia Yu only knew a little bit about it, but she was right in her conclusion, turning in circles too hard would indeed have a bad effect on the child's body!

The reason is that the baby's head is heavier, accounting for a larger proportion of the body than adults, and their head has more water, the myelin sheath is immature, and the neck support is also more fragile, and when shaken, the brain is easily compressed and twisted......

All in all, it's okay to gently shake a baby to put him to sleep when you pick him up, but it's best not to do such violent shaking and dangerous actions as holding the baby in circles, or throwing him up, etc.!

It's a bit far, no matter what the scientific basis is, no matter whether what Xia Yu said is accurate or not, Yang Yan still believes her suggestion, and he also thinks that it is indeed inappropriate to let Luoluo keep going in circles!

However, there is no need to wait for Yang Yan and Xia Yu to stop Luoluo from turning in circles, the little girl herself fainted first!

"Quack ......" Luo Luo laughed excitedly, but as soon as she stopped, her movements became strange, and she was seen leaning over, stumbling in one direction and pounced.

Fortunately, Yang Yan was quick-eyed, grabbed Luoluo's small waist from behind, and pulled her back.

"Hee-hee-......" The little girl fell softly on her father's arm like a noodle, and her little buttocks arched up under the influence of her posture, and then she hummed weakly.

"You can't go around in circles! I heard my mother say no, you're very dangerous like this!" Yang Yan picked up the little girl funny and gently rubbed her fleshy little face.

Luoluo smiled like a crescent moon and looked at her father fixedly, not knowing if she listened or was still in a dizzy state.

......

After coaxing Luoluo to sleep, Yang Yan still had something to discuss with Xia Yu.

"After cracking the child abduction and trafficking case before, did our Shaping Street Police Station keep a file?" Yang Yan asked Xia Yu.

He is now a consultant at the Shaping Street Police Station, and he claims to be a member of the police station, so the title is starting to look a little different.

"Archive, what do you mean, what do you want?" Xia Yu was a little confused when he heard Yang Yan's layman's words.

"It's the kidnapped, the kids. Yang Yan didn't intend to hide it from Xia Yu, and directly said his plan, "I am now working on an 'intelligent recognition' system, and I want to improve the problem of the difficulty of abducted children going home!"

"Didn't you say that there are many abducted children, and even after they are rescued, it is still difficult for them to find their parents? I have read some news reports that the main reason is that these children are young, and some of them were taken away when they were babies, and they could not tell the police where their homes were and what their parents' names were. Yang Yan said.

"Well, do you have a way?" Xia Yu looked at Yang Yan with her sparkling eyes, a hint of surprise on her face.

"The best and most accurate solution is a paternity test, and I checked the information and it seems that this method has been gradually promoted. But this paternity test is not easy to do, so many abducted children in the country, so many families with abducted children, the cost of blood tests is too high. Yang Yan said to Xia Yu.

"My idea is photo comparison, or face recognition. Yang Yan smiled, "It's similar to the technology in the blockbuster movie that can identify criminals or agents through surveillance video, but we are not so high-end, we just want to make a technology that can identify whether the faces in the two photos are consistent, or there is a relatively high degree of similarity!"

"If we can make it, we only need to enter the face photos of the children we rescued in the database, and the computer program will compare it with the photos provided by the families who reported the crime before -- thousands of photos -- and as long as the database shared by our police is available, we can find the child's family for him! Even if it is not 100% accurate, then we can provide information to the families with a high degree of acquaintance according to the similarity, so that they can come and claim the child. Yang Yan talked to Xia Yu endlessly.

This idea is really good, but Yang Yan himself has not thought about it, and it is not easy to implement it!

After all, he is just a programmer, and if he wants to design a perfect analysis and comparison program, he also needs to have knowledge of biology, genetics, or human face growth!

Otherwise, he doesn't know how to ask a computer to analyze the parts of a face that don't change, or how to calculate how a face might change over time.

To do a good job in this big topic, Yang Yan may need a team to work with experts in the fields of biology and anthropology.

But it seems a bit harder......

He doesn't have that much time and not so much money to invite someone to start a research project with him!

"At the moment, I am studying on my own, and I am also consulting with some professors through my mentor's connections. Yang Yan said to Xia Yu, "But I've been writing an AI program recently, and when I continue to improve it, I hope to have some photo information for it to learn and analyze, it is a relatively intelligent system, and you can adjust the algorithm yourself in continuous learning, or submit the problems found to me." ”