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The second operating system Shi Lei prepared was based on the GMM Gaussian hybrid model. It was mainly used to develop a speech system.
The so-called Gaussian hybrid model was a model formed by using a Gaussian probability density function to accurately quantify a transaction. A transaction was decomposed into a number of Gaussian probability density functions, which was a normal distribution curve.
The GMM model was usually used for speech recognition. It was widely used in the computer field.
Although the speech recognition made by the GMM model had a 20-30% error rate, as long as the speech was standard enough, and coupled with the dynamic behavior recognition engine to monitor the lip-reading, the error rate would be greatly reduced.
In terms of lip-reading, the lip-reading behavior could be successfully recognized through the dynamic behavior recognition engine.
As for the speech command, it was not something that Shi Lei could control. After all, different dialects were different. He could only use Mandarin as the standard.
Shi Lei could give an affirmative response. If he wanted to play "The World of Braveheart" well, he must have a good command of Mandarin.
Perhaps with the popularity of "The World of Braveheart", there would be a craze for learning Mandarin in the Xia Xia!
If that was the case, "The World of Braveheart" might be recommended by the Xia Xia official. If it could be recommended by the official, "The World of Braveheart" would definitely soar!
The GMM Gaussian hybrid model was not complicated. In natural language processing, it was only a shallow learning neural network.
In 2006, a professor at the University of Toronto, Canada, published an academic paper in the top scientific journal "Science", which introduced the problem of deep learning neural networks.
Many hidden artificial neural networks had excellent feature learning ability. The features learned were more essential to the data.
This was the deep learning neural network that corresponded to the shallow learning neural network.
Before Shi Lei's rebirth, in 2012, Stanford University and a large-scale computer system expert jointly used 16000 Core.CPUs to build a deep neural network model called "Deep Neural Networks". They had done simultaneous translation from English to the Xia Xia language. The translation process was very smooth. There was no lag at all. The error rate was less than 1%!
The pseudo-artificial intelligence of the Angel Council was built using the DNN deep neural network model!
Unfortunately, Shi Lei did not have the time to develop a deep neural network model based on DNN. He could only develop a shallow neural network based on GMM and create a speech recognition system. Then, he would use a behavioral dynamic recognition engine to recognize lip-reading to reduce the recognition error rate.
As for the voice system, after it was developed, not only could it be used in < Brave World >, it could also be used in many other ways.
Especially when combined with the dynamic behavior recognition engine, it was a very powerful system.
With the voice recognition system, Shi Lei could control the computer with his voice.
At that time, Shi Lei could even simulate the attacks of two people by himself. He could also fight with himself to better conceal his identity.
There were also some surveillance systems that could be done even better.
For example, in the medical monitoring system, some patients who could not move but could speak could operate the medical system through voice, calling for services such as nurses or doctors.
Regarding the voice system based on GMM, Shi Lei had another idea in his mind, and that was …
Returning to the theme of < Brave World >, with the dynamic behavior recognition engine and the assistance of the GMM voice system, it could become a real somatosensory game.
As for the other difficulty, the problem of the character action system, Shi Lei planned to develop a third auxiliary operating system.
That was to use the dynamic behavior recognition engine to specifically track the player's pupils, and then use software to calculate the player's focus.
As for the pupil tracking technology, it had not been patented yet in this era, so Shi Lei could take over this technology.
The original patent owner of this technology was Nokia, but unfortunately, Nokia declined in the later years and was completely defeated by Android.
There were many benefits to using the pupil tracking technology in < Brave World >.
Combined with the dynamic behavior recognition engine and the GMM voice system, some difficult somatosensory actions could be perfectly achieved.
For example, in reality, players would never be able to achieve the somatosensory actions.
For example, if a player was on a cliff and wanted to use Qing Gong to fly down, the player would not be able to do so.
At this time, it was impossible to use the somatosensory actions to find a place to jump down, right?
Therefore, the pupil tracking technology could be used. Using the pupil tracking technology, a small jump could be used to jump down from the cliff.
As for the various footholds on the cliff, the player's focus line of sight had to be determined, and then the pupil tracking technology would be used to control the corresponding character in the game.
For example, in < Brave World >, although players could easily throw knives, arrows, and other hidden weapons, they could not just throw them in a random direction, right?
If they threw them in a random direction, the dynamic behavior recognition engine could forcibly determine the target, but what about when they faced multiple targets?
Then there would be nothing they could do!
If they had the pupil tracking technology, they could determine the target's focus by determining the pupil's line of sight, and then determine which target was locked on, so that they could accurately attack.
Including the eye-tracking technology, the World of Heroes had introduced three sets of operations. When these three sets of operations were combined, they would form a perfect game control plan.
2007, January 1st, New Year's Day, around 5 pm, Shi Lei finished building the foundation of the GMM model.
As for the pupil tracking technology and lip-reading technology, the dynamic behavior recognition engine could completely change the strategy and directly implement these technologies.
Shi Lei stood up from the chair and stretched. He walked out of the bedroom and prepared to look for something to eat in the fridge.
Since he was developing the GMM model and creating the voice system, Shi Lei only ate a little during lunch to satisfy his hunger.
As a foodie, Shi Lei's hunger tolerance was infinitely close to zero. He was hungry now, so he wanted to find something to eat.
He opened the fridge, and because he had not restocked it for a long time, the fridge was empty. There was no milk!
"F * ck!" Shi Lei could not help but complain, "F * ck, are you trying to starve me to death?"
Shi Lei went back to the bedroom and grabbed the car keys on the computer table. He was ready to go out for lunch and buy some supplies.
However, just as he walked out of the door, the phone in his pants pocket rang.
The caller ID showed that it was Ouyang Xiang. Shi Lei's face lit up as he quickly picked up the call.
"Hello, happy New Year's Day, Ouyang!" Shi Lei spoke first.
Ouyang Xiang's voice was firm and strong, with a bright and clear tone, "Shi Lei, happy New Year's Day.
Are you at Jingya Court? "
"Yes, I'm here!"
Shi Lei replied. He suddenly remembered that Ouyang Xiang was also alone in Jingya Court. Her father died early, and her relationship with her mother seemed to be very bad.
"Shi Lei, come over for lunch later!" Ouyang Xiang's voice had a hint of concern and a hint of joy.
Shi Lei's heart was filled with joy. He secretly wondered why Ouyang Xiang suddenly called him over for lunch.
Although their relationship eased up because Shi Lei took the initiative to let Ouyang Xiang work in the Narcotics Squad.
However, things like freeloading had always been done by Shi Lei shamelessly. Ouyang Xiang never took the initiative to mention it.
Although he didn't understand why Ouyang Xiang took the initiative to ask him to freeload, how could Shi Lei let go of such a good opportunity?
"Ah, Ouyang, you're so nice. I love you to death. I'll come over right away!" Shi Lei quickly said on the phone.
Ouyang Xiang snorted, "Don't be so talkative. If you want to come, then come!" After saying that, Ouyang Xiang directly hung up the phone.
Shi Lei hummed a little tune as he walked into the elevator. The phone in his hand rang again.
Shi Lei thought it was Ouyang Xiang. When he was about to answer the call, he saw that it was Li Zhiyue!
This discovery gave Shi Lei a big fright. He was just about to pick up the call and say a few words to Ouyang Xiang.
"F * ck, f * ck, next time before I answer the call, I must look at the caller ID!" Shi Lei almost made a big mistake. Cold sweat broke out on his forehead.
Taking a deep breath, Shi Lei picked up the phone and said as calmly as possible, "Zhiyue, happy New Year's Day!"
Li Zhiyue replied, "Shi Lei, happy New Year's Day."
Shi Lei knew that if there was nothing, Li Zhiyue would not take the initiative to call him. Especially in this life, Li Zhiyue was not disfigured and did not have any psychological pressure. It was even more unlikely that she would take the initiative to call him.
Since Li Zhiyue took the initiative to call, it meant that Li Zhiyue had something to say. "Zhiyue, how have you been recently?"
Li Zhiyue replied absent-mindedly, "I'm fine."
Shi Lei could tell that Li Zhiyue was not in the mood to chat. He knew Li Zhiyue very well, so he took the initiative to ask, "Zhiyue, why are you looking for me?"
"I …" Li Zhiyue's tone was full of hesitation, "I …"
Shi Lei was a little anxious, "Zhiyue, what's the matter?
Is that Wu Bin harassing you again? "
The Wu Bin that Shi Lei mentioned was a calligraphy teacher in the Art Department of Shuangqing University. He was only 28 years old and could be said to be young and promising in Shuangqing University. He had been to Li Zhiyue's house and was originally liked by Li Zhiyue's mother, Huang Fen.
Li Zhiyue denied, "It's not Wu Bin!
He's not harassing me now. "
"Then what's the matter? Zhiyue, if there's anything, just tell me!
No matter what it is, I'll help you! "Shi Lei asked anxiously.
In his previous life, there was an unbreakable bond between Shi Lei and Li Zhiyue. The platonic love between the two of them was something that Shi Lei would never forget no matter how much time had passed, even if he was reborn!
In this life, because he saw Li Zhiyue again and saw the perfect Li Zhiyue, Shi Lei fell in love with her even more!
Li Zhiyue was silent and did not speak.
"Zhiyue, if you don't tell me, I'll go to your house now!" Shi Lei could not help but ask a little more forcefully.
(To be continued.
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