In addition to the city of Yanjing, Meng Fanqi spent seven years in Shanghai, plus a few months of internship, and Shanghai left the deepest impression on him.

The reality of wanting to stay but being unable to do so made him have a strange feeling towards the city to this day.

He thought it was normal to long for a big city like Shanghai, but what was abnormal was what determined who could stay and who couldn't.

Meng Fanqi is now financially independent, and this time in Shanghai, he booked a five-star hotel by the Pujiang River.

He took a morning stroll by the river, walking south, and slowly wandered to the now-canceled southern area.

There is a City God Temple and a garden here, which are always must-see attractions for tourists in Shanghai, located in the most central area.

But in the core area of this national financial center, there are large areas of old city districts and buildings.

Just a few hundred meters to the east is the Pujiang River, but within a few kilometers to the south of the City God Temple, there are almost all dilapidated old city areas.

Many households still have to use public toilets and spittoons.

"Perhaps this is the real Shanghai," Meng Fanqi walked among them.

Compared to the prosperity and various architectural styles on both sides of the Pujiang River, near Xintiandi, and the wealthy streets of Julu Road and Fumin Road, these streets and alleys are actually closer to the real life of Shanghai.

Zhang Xuefeng, who had previously advertised under Meng Fanqi's Weibo, has gained some popularity now due to the heat at that time.

He may be controversial in many things, but there is a sentence that Meng Fanqi has always deeply empathized with.

To experience the real Yanjing, don't go to the Summer Palace, Sanlitun, that's not the real Yanjing.

Go to the vicinity of Guomao, take bus 830 to Yanjiao; go to the Tian Tongyuan where hundreds of thousands of people live.

Take a bus without getting off, live in a community with a population comparable to a city, known as the largest community in Asia, with four police stations and three subway stations.

And the real Shanghai is also like this, the crowded City God Temple area is all old city, and the living conditions here have nothing to do with the prosperity of Shanghai.

Across the river is Lujiazui, Shanghai's economic and financial center, where Meng Fanqi will go to the Google Shanghai branch in a few days.

But even when surrounded by prosperity, what does this have to do with ordinary people?

Meng Fanqi is very clear about this, working in Shanghai, and eventually settling in Dalian.

Getting close to wealth and power will make people think they have control over them, and this mentality is absolutely unacceptable.

Walking in the old city streets, Meng Fanqi did not feel any sympathy for the living environment and conditions of these residents.

After 2020, Shanghai plans to completely renovate the old city center, cementing the entire area within a few kilometers and carrying out collective relocation.

Meng Fanqi did not understand the specific policies too well, after all, it's not his fate.

He only knows that a 45-square-meter apartment is divided into two for only children, and there are also considerations for future spouses and children, so it's not difficult for many young people in their twenties to get a 135-180 square meter apartment.

Many people are still complaining, saying that they have been moved from the Pujiang River to the countryside, but unfortunately, the countryside they are talking about is also something that Meng Fanqi cannot afford.

Therefore, compared to them, Meng Fanqi feels that he is more deserving of sympathy.

But these are all things of the past. After a few months of rebirth, Meng Fanqi has already achieved property freedom and can live wherever he wants.

After a brief stroll, Meng Fanqi contacted Wang Kai and went to Baidu.

After chatting for a while, he suddenly realized that this kid was originally from Shanghai.

"You originally lived in Shanghai, so this trip back is just a free trip home, what are you complaining about?" Meng Fanqi was speechless after meeting him downstairs at Baidu.

"Bro, no matter what, you have to make the leader feel that you are working hard!" Wang Kai began to share his slacking off principles: "The leader is easy to see that you are not busy, and also can't stand seeing you working comfortably."

"That's true." Meng Fanqi also has a lot of his own insights on slacking off. Things that are usually finished in the afternoon at three or four o'clock must be delayed until the evening or when the leader asks for a response.

As long as you can finish the work, the leader will think that your work is not saturated and then give you more work.

When there are a lot of things to do, Meng Fanqi will also choose to report work late at night, to make it seem like he has been busy until that time.

"It's okay, if you follow me these days, you don't have to do that." Meng Fanqi organized the information and arranged for Wang Kai to first understand the algorithm background: "You first understand these two sets of information, and I will write the basic logic and framework, come find me after you finish reading."

Hungary and KM classics are easy to use, and the principles are not that complicated, it's just that people outside the specific field don't pay attention to it.

Wang Kai was also completely clueless about this before, so he obediently took the information and went to read it.

Meng Fanqi looked around, took a stroll, and chose an ordinary workstation.

"It's just right, this position is currently not in use." Meng Fanqi smiled with complex emotions, this workstation was the one he had used for a long time before his rebirth.After six or seven years, there were significant differences in various office supplies, decorative ornaments, and even the scenery outside the window.

The same location, the same company, and the same coding.

But the difference in status was already worlds apart.

Meng Fanqi's code transformation work went very smoothly, mainly because when he was writing the YOLO part, he had already considered the expansion of other functions.

There are quite a few variants of detection-based algorithms, and Meng Fanqi, who excels in visual algorithms, had long ago left convenient interfaces in the corresponding positions for transformation.

Initially, it was just because of limited resources and the inability to run so many experiments that he only did the most basic part.

In his conception, it was for the convenience of his fellow programmers to do secondary development, but he didn't expect to be the first to do so.

With a clear train of thought, Meng Fanqi, who was very familiar with the process, quickly extracted some features from the key positions of the YOLO algorithm graph.

Based on the information of the selection box, he designed a display method for each selection box in a single frame, and tested the matching situation with the Hungarian algorithm.

Meng Fanqi was too familiar with this series of tasks, so he only spent a little over an hour and had already completed half of it.

The weighted Hungarian algorithm is actually the KM algorithm, and in this project, Meng Fanqi specifically designed the calculation method for matching weights based on the government's scene situation.

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It can be said that for such a single scene, there is no need for a Kalman filter, and the effect is completely good enough.

However, because the development went too smoothly, Meng Fanqi didn't plan to be lazy. He was ready to take a nap and then add the Kalman filter in the afternoon to complete the task.

"Damn, is it almost done?" Wang Kai struggled to understand the principles and processes of the two algorithms all morning, only to be told by Meng Fanqi that it could be finished in the afternoon.