Into the Immortal Cultivation

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How to predict the movement of a pedestrian? Or, can this process be predicted?

Most people will answer "workable" in the first place. Because most people will go directly to their destination.

It's just a straight line!

But is it really that simple?

No.

Because there is always more than one pedestrian on the street.

Pedestrians will automatically avoid others, and every action of each pedestrian will have a certain impact on others around them.

In addition, humans will also unconsciously tend to people in the same direction. This trend is also very small, and the two people will not be too close. However, this is a subtle existence.

In addition, it is not always necessary for everyone to realize that other people are approaching and responding to evasive actions.

The speed of pedestrians is not necessarily the same.

Every moment, the influence and direction of each person's movement on the surrounding people are different, and the overall size and direction change at any time. There are too many uncertainties, too many uncertain factors. Macroscopically, these effects will cancel each other out, forming a huge "population".

Just like the Brownian movement.

Brownian motion is also called Wiener process in mathematics, it is a random process. The independent increment and normal entropy make the mathematical expectation of this process always zero. This is an absolutely random and absolutely irreversible process.

but……

"Fortunately, it is not a Wiener process in general." Wang Qi stared at the repeated effects and thought: "Pedestrians always have a destination ... Pedestrians choose a path based on either biological instinct or subjective favorable expectations."

At least not absolutely random.

At least not the mathematical expectation is absolutely zero.

Very good, as long as there is a line.

Under Wang Qi ’s order, thousands of organ birds scattered, focusing on tracking down some people who appeared repeatedly before and after the murder. There are also singularities that do not fully match the general direction of the crowd.

This is a part of Wang Qi's mind.

A section of his mind is standing on the road of Shenjing, which has been automatized by cells, to observe and calculate.

For Jarvis, the cellular automata of pedestrian flow in a city is too burdensome. He did not hesitate to follow Wan Xian's illusion, occupying part of Wan Xianzhen's idle computing power.

To put it simply ... the dark past.

Such an obvious act of death could not hide Feng Luoyi. But Wang Qi also knows that although the immortal fantasy is so powerful, the idle computing power is exploding, but all research institutions in China are counting on these idle computing power, and countless research data are running on it. He really didn't know when to apply to line up.

Fortunately, he is now a small privileged class. On the day he encroached on the computing power of Wan Xian Zhen Jing, he received a message from Feng Luoyi. Feng Luoyi scolded him fiercely in his heart, and then Wang Qi's use of Wan Xian Zhen Jing's idle computing power would be charged at twice the normal rate.

Twice, Wang Qi felt that this number was exchanged for time. No loss.

And the mind of his other thread is at a position that cannot be seen in the calculation monitoring, the possible path of action of the murderer.

There is no known condition other than that determined by the time of the incident, "the murderer must be here in a certain period of time."

Where will he meet the victim?

According to what law will he move?

At what point will he leave the main road of the monitoring area and walk into an alley?

Not at all.

But one thing is certain.

This guy usually commits a crime at night, and Zhengda brightly kills on the road. In addition, his motive for committing the crime is not clear, but since it is a random hunt, he will definitely take a little time to determine the victim.

This time cannot be too long, because he needs to hide well.

"Shenjing's irregular and idle guys are stared at by the Attorney General." Another part of Wang Qi's mind was reviewing the investigation results of the Shenjing Criminal Law Department: "He may take some time every day to take a walk, while walking. Commit a crime. Or on the way to work, on the way home. "

"He can't collect information about land ruffians with great fanfare. Ha ha, if there is any one who always wants people to inquire about land ruffians, the people he has inquired about will definitely disappear ... This legend will definitely be more than the murderer itself. popular."

"He should not be a person who is always bullied ... Nima has the power to kill but is bullied. This is not the extremely powerful earth of the national violent institution, but the Divine State, a world of strong personal force!"

"He has the potential to attract those scoundrels and rogues himself ... revealing money, pretending to be stupid and having more money, or is it beautiful?"

"When you encounter it, kill it and vent your **."

"His wandering time is limited, and his speed will not be too fast. He will pass the road and then attract these local skins in the alleys."

"Because there is no chance of killing more than once, it can be speculated that after killing, he will follow a certain way back to the road and return to his peaceful life."

Combined with the analysis of Shenjing Criminal Law Department, Wang Qi made such a judgment.

Study the law of activity of the scoundrel and rogue, and speculate under what circumstances these two individuals will meet at this particular place, and then find out that he may pass through those intersections.

Even if there are thirty cases, thirty different sets of results can be found. However, comparing 30 groups of different suspects and focusing on selecting the duplicates will not help.

Because there are too many.

However, Wang Qi does not expect to find the final solution in this way. Moreover, there is no evidence for this kind of thing, which is calculated purely by mathematical calculations, and it is difficult to be trusted.

However, it does not matter.

"The time for this perverted murderer to go to the place of crime is within a certain value."

"This time cannot be too long, but it will not be too short. And he will always go out at this time every day."

"Otherwise, the guy who had an unusual record of going out on the day of the incident should have been pulled out by the Shenjing Criminal Law Department.

"According to the law of pedestrian flow, calculate the line this guy may pass."

"Plus the possibility of him wandering in the non-monitoring area ..."

"The combination of the two is a road map full of possibilities."

The convergence of this roadmap is where the guy must go.

Although there may be many "inevitable". but……

"I feel like I'm very close to you, mix ball ..." Wang Qi's threaded fingers tapped the table with a special memory.

This is Wang Qi's last idle thread. The remaining more than forty threads are eagerly reading related literature, papers, and academic monographs. Hope to give yourself a little inspiration.

"The rest is a water mill ..." Wang Qi whispered to himself: "You have to prepare a suitable piece of equipment."

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