Military Technology

Compared with the previous English letters, this "Preface to the Lanting Collection" is more difficult, and has stricter requirements for the EEG signal capture and recognition capabilities in the brain-computer sensing system.

The first is the transition from a single English letter to Chinese characters, especially the complexity of our Chinese characters, which is a very severe test for the accuracy of the brain-computer sensing system's capture and recognition.

First of all, the structure of Chinese characters is very complicated. Not only are there many gestures, but it is also very difficult to write, and the variety of Chinese characters with homophones, similar characters, synonyms, rare characters, and traditional characters also intensifies the difficulty of the test.

The words and sentences composed of these Chinese characters are more complicated.

How to make the brain-computer sensing system accurately recognize the words imagined in one's brain requires relevant technical support.

The simplest method is similar to the intelligent voice system, or the intelligent input method, etc., using context association recognition technology to associate and judge the exact words and characters in the sentence through a whole sentence.

This technology largely solves the problems of vocabulary and Chinese characters with polyphony, multi-meaning, and similar shapes, and improves the efficiency of input recognition.

If you just want to make an input method, then there is no problem in the field of brain-computer sensing technology for this contextual association recognition technology.

However, the brain's thoughts are changing rapidly. Using this associative recognition technology, some of them cannot keep up with the brain's thinking speed, and errors may occur.

Therefore, in the development of their project, Wu Hao asked the scientific research team to avoid using this contextual association recognition technology as much as possible. It can only exist as a final optimization tool, not as the technical body of this system.

When Cai Tao reads the original text of this article, each word is transmitted to the brain through the eyes and forms a specific EEG signal, which is the memory signal of the word in our brain and is recognized by us. recorded by the brain.

As for the brain-computer sensing system, it captures and recognizes the EEG signal, and restores it to the text itself. This is the main content of this test.

To put it bluntly, in this test now, the brain only serves as a relay transmission function. Don't underestimate this function. How to ensure the accuracy and speed of these transfer information is also a topic that the scientific research team needs to study, and it is also a major difficulty.

The second difficulty is interference, constant interference, especially when reading familiar articles, it is easy to be interfered by other incidental memories.

Just like when Cai Tao read the preface to the familiar Lanting collection, he couldn't help thinking back to his middle school life and some memory information closely related to this text. How to eliminate the interference of these memory information and accurately capture and identify the content of this text is also a very difficult problem.

The third problem,

When Cai Tao is reading this kind of familiar article, he will inadvertently speed up. Reading is like this, and so is brain thinking. How to capture these EEG signals under such fast thinking is also a technical problem facing the R\u0026D team.

Of course, there are still many difficulties, so I won't list them one by one here.

Sure enough, the result of this test was far worse than the previous test. In the "Lanting Collection Preface" produced by Cai Tao's EEG signals captured and identified by brain-computer sensing equipment, many mistakes appeared.

Typos, wrong words, wrong sentences, and even mixed with some other content and so on.

Faced with such data, the big guy can't help but feel a little frustrated. Sure enough, it still doesn't work.

Of course Wu Hao also felt this atmosphere, and he smiled and clapped his hands to encourage everyone: "Don't be discouraged, everyone. In my opinion, the test results have been very successful. Without the assistance of intelligent associative recognition technology Now, it has been able to capture and identify articles, and the correct rate has reached 87%, which is already very remarkable.

It can be said that my test results, even in the world, are definitely far ahead.

So, everyone, don't be too discouraged, let's make persistent efforts. I believe that with the efforts of all of us, this technology will definitely flourish in our hands. "

"Mr. Wu is right. Let's not be too decadent. This technology has grown from scratch to the point where it is now. I am proud of our entire team and each of us. Let's continue to work hard, I believe these problems will be resolved soon." Ding Zifei also spoke to encourage the morale of the crowd.

Sure enough, he started his own business, and just a few words can cheer everyone up. Of course, what Wu Hao said earlier also played a vital role. Otherwise, it is impossible for these people's emotions to be appeased in such a short period of time.

"Okay, let's proceed to the next test." Ding Zifei gave an order, and then introduced it to Wu Hao.

"The content of this test is the normal text input method. The intelligent associative input method is used for input testing. This is also a content we often test. The accuracy rate can reach more than 99%, and the input speed is our best. Two to five times the speed of keyboard input, it can be said to be the gospel of text workers and the nemesis of tentacle monsters."

For this test, Wu Hao knew that at the Artificial Intelligence Conference, a related research team had done a similar test session, using brain awareness to type.

At that time, the test was very eye-catching and attracted the attention of the whole society. Some experts even say that brain-computer sensing devices will soon be put into commercial use, bringing good news to high paraplegia and ALS patients suffering from diseases, and even to vegetative people.

But after so many years, this technology has not been put into commercial use as the expert said.

From the current point of view, looking back at the conscious typing technology demonstrated at that time, it was still very rudimentary, and the fourth degree was very slow. Basically, it was spelled letter by letter through pinyin, and the efficiency was very low.

"The test begins, Cai Tao, silently write down the "Lanting Collection Preface" you read in the last test."

"OK!"

Immediately, in the blank Word document, Cai Tao quickly began to type. The speed is very fast, the entire Lanting Collection Preface, a total of 400 characters, was written silently in less than 30 seconds. And the speed is very fast, only the input box is constantly flashing, and the text and vocabulary input is not clear at all.

"27 seconds, equivalent to words per second, an increase of 0.6 words compared to the previous test, and the result is good!" Ding Zifei looked at the data on the screen and said with a smile,

clap clap clap...

Wu Hao took the lead in applauding, and soon the whole laboratory was filled with applause.

"Yes, I think this technology can be commercialized!" Wu Hao praised Ding Zifei while applauding.