Just thinking about it in his mind, Li Huo felt that his brain was overloaded with data.
"Even if we can find their camera records, it's meaningless. They've already changed their faces and hid in the vast crowd, so what's the use."
"it works."
Meng Fei opened the goddess system, selected Qingqing, and then clicked on the screencast, covering Li Huo's PPT on the big screen without ceremony.
But just as he was about to catch a turtle in a jar, Meng Fei suddenly felt his nerves tighten and screamed in his heart that something was wrong!
In his excitement, he forgot about the occasion and directly screened the chat window with Qingqing. But Ai Ting was still watching.
Even if Ai Ting is not here, if those ambiguous chats with an AI saying "wife" are shown in front of everyone, everyone will think that he is smart, right?
But I’ve already clicked on the screencast, and it’s too late to take it back.
He was sweating profusely and glanced at the big screen. Only then did he realize that all the chat records between himself and Qingqing had been deleted?
The interface is clean, with only simple and clear greetings sent by the goddess AI.
"Hello, Mr. Chief Investigator. I am the goddess AI system. How can I help you?"
Meng Fei breathed a sigh of relief and thought to himself:
"She actually knew that I clicked to cast the screen? Of course, of course she knew. I clicked to cast the screen on the Goddess app, how could she not know? Fortunately, the AI responded quickly, otherwise it would be over."
Wiping the sweat that broke out on his forehead, Meng Fei entered seriously: "I want to check the records of all the Chiwu people who entered Wutong City Customs in the past six months."
"The case you are responsible for has been confirmed. The Twelve Nightmares case is selected by default. If confirmed, please reply yes, if not, please reply no."
"yes."
“This information can only be used for your investigation of this case and cannot be disclosed to anyone outside the task force.
"If there is any violation, you will violate the Personal Information Privacy Act and bear corresponding legal liabilities. Do you fully understand this?"
"learn."
While Meng Fei was typing patiently, he frowned and thought it was really troublesome. When did Qingqing become so troublesome?
Didn't you just say the word "wife" in the key before and you would get whatever you asked for?
"58791 records have been queried. Do you need to filter?"
"First check whether any of these immigrants match the appearance of Wan Yi, Wu Jun, and Liu Jian?"
After about three seconds of comparison, the goddess replied as expected: "No."
Li Huo said with a helpless expression:
"Look, as I said, even if these three dolls did enter the country like this, they are mixed in with more than 50,000 people and have changed their faces. How are you going to find them?"
"Yeah, but I don't have to find all three. I just need to find one."
Meng Fei tapped the table gently and said to Li Huo:
“First of all, most Chiwu people come to Wutong City for short-term tourism, a small number do business, and not many visit relatives or immigrate.
"Tourism and business will not last long. If you exclude those who have returned to the country or have traveled back and forth many times, you can exclude a large number of people."
"Then the face of the doll is easy to change, but the gender, height, fatness and thinness are not easy to change. Let's assume that their gender and body shape will not change.
"Then among these three people, the one with the most obvious characteristics should be Wan Yi. First of all, we can exclude all males.
“Then she’s short and thin, and women who don’t meet the criteria can also be ruled out.
"After these rounds of screening, maybe we can accurately select a few people, and finally confirm them one by one."
Then he entered text: "Screen and exclude those who have left the country and those who have entered the country multiple times."
AI replied: "It has been excluded, and there are 4821 records remaining. Do you still need to continue screening?"
He was indeed right. Just excluding those who have returned to Chiwu and those who have gone back and then come back again, 80 to 90 percent are eliminated!
"Exclude men and select only women." Meng Fei entered again.
"Records of men have been excluded. There are 1320 records left. Do you still need to continue screening?"
"Height 1.53, weight 42kg. Please exclude records that are unlikely to meet these two conditions."
There will be no record of height and weight in the passport. However, there are video footage recorded by cameras at entry and exit.
The artificial intelligence program can roughly estimate the height and weight of the person being photographed through the footage captured by the camera.
While it's impossible to be precise to a few decimal places, it is possible to exclude people who are unlikely to meet the criteria.
"Filtered based on height and weight requirements. 202 records remaining."
There were more than 50,000 records, and in the blink of an eye, only 200 were left! Li Huo had to be convinced by this efficiency and couldn't help but start to doubt his own IQ again. .
"Search for the faces of these 202 people in the public surveillance videos of Wutong City in the past two months. If they can be found, exclude them."
The streets and alleys of Wutong City are covered with cameras, and of course their faces will be photographed when pedestrians come and go.
In theory, if you perform face recognition on the faces appearing in the video, you will find out "who" has been "where".
This kind of data is the most sensitive "private" information of Xizhou people. Therefore, in many Western countries, there are no cameras on the streets at all. It is illegal to install a driving recorder in your car.
Qingmang adopts a compromise approach between public safety and personal privacy. You have to take pictures, but the state ensures that the data is not abused. You do not believe? It's your freedom to believe it or not.
As a result, Qingmang has basically eliminated street robberies and petty thefts, and street robberies have become commonplace in the more developed Xizhou countries.
"Face comparison is very computationally expensive. However, the level of this case can use some of the country's computer power. Do you want to use it?"
The goddess AI reminded her thoughtfully.
Wutong City has a population of approximately 25 million. Assuming that 50% of people take to the streets every day, more than 12 million faces will appear in a day's video.
If compared with 200 faces in this way, the amount of data comparisons per day is almost 2 billion times.
Calculated as one facial comparison per second, it would take almost 60 years to complete these 2 billion comparisons.
If the server cluster that can be applied for by activating the special ability bureau can complete 1,000 face comparisons per second, it will take 20 days to complete the comparison.
"Need." Meng Fei said without hesitation.
After using the national computer, the 20 days was shortened to 20 seconds.
After twenty seconds of silence, the text output by the goddess AI appeared on the big screen.
"After face comparison, there are still 13 entry records left. The immigrants involved in 9 of them have been determined to be outside Wutong City and can be excluded. There are still 4 people, the information is as follows."
The big screen displayed the information of a Chiwu woman who had entered Wutong City within the past four and a half years and has not left the country so far. Her height and weight are similar to Wanyi, but her face is different!
