Internet 2010

Lu Ming, "Imagine that you have a gun in your hand now, and there is a target opposite you, and you need to hit it."

He glanced down, "ok, everyone can understand this scene. Let's simplify it again, imagine that you are a game character, you can move up, down, left and right on a plane parallel to the target."

"So, you can think of the weight w here as, you move on the plane xy coordinates to determine the center of the target. The offset value is to consider the air resistance, and then you make corresponding fine adjustments."

Lu Ming listed a series of parameters on the whiteboard, "What about the final loss? It's simple, and everyone can understand. The closer to the center of the bullseye, the lower the loss, the more successful it is.

So in fact, when you look at it concretely, it becomes a shooting game. You keep feeding the machine data and let it learn how to hit the bullseye. Once it learns, it can probably do about the same level with another target.

Of course, to be more specific, the data is very complex and the situation is changeable. We will not discuss it in detail here. "

Lu Zhou was also in the audience, and he just listened as if he was studying. After all, what Lu Ming said was also interesting.

Lu Ming, "Actually, it would be interesting to look at the shooting scene in reverse. What would it be like if a human were to learn to shoot? First, the brain transmits signals, and then the muscles of the fingers react. After shooting, we Identify with your eyes whether you hit or not.

As for the machine, it does not have these things, so we give it an input and output function, input it to the machine, it will respond, and then it will identify whether it hits or not according to the loss.

What to do if you can't hit it, then learn it until you can. In fact, this is what we often call artificial intelligence, in fact, it uses mathematics to simulate our biological characteristics. Although in practice, it is more relevant to statistics. "

......

After confirming with Lu Ming the next system research topics for WeChat, Lu Zhou drove back to the company.

Before leaving, Lu Zhou suddenly had a brain hole in Lu Ming's explanation.

Lu Zhou asked Lu Ming, "Senior brother, remember the shooting scene you just mentioned."

Lu Ming nodded, "Well. What, what's the problem?"

Lu Zhou, "the question is no. I was just thinking, isn't the whole process just a simplification and a metaphor?"

"Yes, it's a metaphor."

Lu Zhou, "So, what do you think of the complicated situation?"

Lu Ming looked curious, "Huh?"

Lu Zhou said, "The difference between AI and normal programming to process data, generally we also say whether explicit programming is required."

Lu Ming nodded, "Yes."

Lu Zhou rubbed his chin, "Then if I put a moving arm on a machine, and then put a camera and sensor on it. Then, is this shooting learning process really true?

Um. I mean once programming definition, in the end the machine actually learns the action of shooting. "

Lu Ming, "...this seems a little unnecessary, but it's really an example."

Lu Zhou shook his head, obviously Lu Ming didn't understand what he meant.

"In that case, I made the body of the machine complex enough. I didn't explicitly program it to define its actions, but just defined the parameters of the sensors in an implicit neural network.

As long as the machine's physical structure is good enough, is it possible for it to have real learning, for example, learning to walk from scratch, learning to run and jump, and even shooting badminton. "

Lu Ming understood Lu Zhou's words, "In theory, it is feasible to promote cnn training, but the current hit rate is a problem. If you choose to believe in hinton."

Lu Zhou ignored Lu Ming, but continued to say, "No, senior brother, I'm talking about a real person."

"It may be difficult for you to understand the body alone. What if you add auditory sensing and then give it a speaker?"

Lu Ming was delighted, he smiled, "So you want it to learn languages? It's a good subject, even though it's difficult."

Lu Zhou still shook his head, "No no. Think back to the whole process of people learning to walk and talk from babies to adults forming a worldview! I mean to create a machine to go through this process, and to minimize the obvious. programming intervention.”

Lu Ming suddenly realized, "It's very interesting. Maybe this will really become a new kind of human being."

Lu Zhou stretched out his finger to signal for a moment, and he fell into a deep thought.

"It's still the scene just now, let's say I've created these two machines. They have all human-like body structures, can make sounds, and can receive five senses.

But we only define implicit neural networks to them. And they won't have any information about the world to begin with. "

Lu Zhou thought about the language, "ok. Now one of them is turned on, touching the whole world, feeling the light, temperature and even the air.

At this moment, my phone just rang and made a 'ling' sound. Great, it picked up the note and the image identified the phone.

The second machine was turned on, and it started to be the same as the one just now, yes, just like a baby cognition of the world~www.readwn.com~ But at this time, if the first machine made a 'ling' sound with the sounder, then It raised its finger and pointed to the phone.

Once, twice... The second machine finally 'understood' the meaning, and also made a ling sound and pointed at the phone. "

When Lu Ming heard this, his brain exploded. He thought of a scene: In an ordinary family, a mother holds a baby, says "Dad", and points to a man.

"Do you want to say that in the end, these two machines can understand the whole world through communication, and even generate their own language and even consciousness? Or do you want to express that a real artificial intelligence needs a human-like body to realize the right Does the world generate real so-called ideas?"

Lu Zhou smiled, "I think, according to this idea, we should turn them into a group and live together like humans, so that their historical process should be turned upside down. Yes, through their own understanding to promote their history."

Hearing this, Lu Ming became more and more terrified. Yes, a lot of relevant theoretical support can be found for everything Lu Zhou said. The only problem is a more optimized theory and the difficulty of implementation.

Lu Ming smiled and shook his head, "Although this is an interesting topic, I think it will take a long time. Maybe decades or hundreds of years."

Lu Zhou smiled and said, "I'm happy to accompany you."

Lu Ming patted Lu Zhou on the shoulder, "Let's do this first. Think about the future and focus on the present."

Lu Zhou, "Okay. Then I'll go back first. I'll sort out this idea later. Let's treat it as an amateur project."

Lu Ming, "Okay."

Lu Zhou also walked out of the experimental building, and he was thinking about the problem in his mind.

What exactly is language? And what is consciousness?