weekend

Wen Xiaoxiao caught one of them and slept with her, except that she couldn't hold back her urine, otherwise she was expected to get out of bed before noon.

She's the kind of person who screams in bed that I'm hungry, but doesn't get out of bed to eat.

And he couldn't sleep, firstly, there was something, and there was also the influence of the biological clock.

As soon as I woke up in bed, my stomach was rumbling, it was impossible for his sister to get up to cook, there was nothing to eat at home, it was too troublesome to make porridge, the old rule, 2 yuan to buy some breakfast.

After walking a step or two out of the corridor, I saw the steamed bun that had been closed open the door, and it was here that the ambulance and the funeral were held a few days ago.

With white things, it is very influential to open the door to do business, and because of this, there are almost no people in front of the door.

But I don't know why I still opened the door, there was a table at the door, on top of which were two steamers, steaming, the place that should have been a garage, was changed into a small restaurant, and there were six tables in it, but unfortunately it was empty.

As a high-level intellectual, Wen Xiaoguang has never been superstitious, but there are things in him that science can't explain.

It's going to be a few days later, and I'll talk about it when the atmosphere clears.

Skipping this matter, after eating another piece of egg scones without ham sausages, Wen Xiaoguang sneaked into his sister's bedroom.

Generally speaking, as long as you don't jump around here,

Wen Xiaoxiao will never wake up before 11 o'clock.

The classic machine warms up for three minutes, first board your own QQ, and then go to your own store,

He estimated that someone might add him, because he wrote an after-sales online Q&A, which is quite precious for people who are going to graduate school.

The other three courses, the postgraduate examination institutions have teachers to teach, but the professional courses are more troublesome, and the learning materials are basic, the problem is that they basically rely on self-study, if this has no impact, then what do you want the teacher to do?

The teacher at least has one value, that is, it saves a lot of time by giving a very clear and clear focus.

So there should be someone to add him,

In fact, there was a little nervousness when I boarded QQ.

Wen Xiaoguang held the mouse, and on the screen, it was 'login', and after the client's interface came out......

No response,

Wen Xiaoguang's heart sank, and he waited for another three seconds,

Still no response,

"It shouldn't be...... stuck?" he muttered,

It wasn't until a few seconds later that the familiar sound of 'cough cough' sounded,

Syllable!

He clapped his hands lightly, that is, this junk computer is not as stupid as its owner.

The scum of the school is wailing,

Thought I didn't know?

On the other side, Ge Yaoer, who was listening to the online class in the laboratory, heard the QQ prompt sound,

The little girl looked at it, it was last night that she added that QQ number and there was a reaction, it was magical,

It's 7 o'clock in the morning, and it's the weekend.

This point lives like people are in bed,

Only those who live like dogs come out to move.

She's a graduate school dog,

It's that Lin Bei didn't dare to sleep at 7 o'clock, saying that she was simple but that her competitors were weaker, but the difficulty of the postgraduate examination itself was there, and it was not as simple as taking the teacher qualification certificate.

She immediately typed: Hello.

Wen Xiaoguang put on headphones, lest Didi really wake up Wen Xiaoxiao and affect his first business, although there is no order in the store, but it will be there soon.

Wen Xiaoguang: Hello, are you going to take the Jiang Li exam?

When he came up, he went straight to the point, the people over there were in a hurry, and Wen Xiaoguang didn't want to waste time.

Ge: Yes, I want to see the picture you put up, so I added this QQ and wanted to make some inquiries.

Wen: It's okay, if you have any doubts, just say that I graduated from Jiangli, and I can ask you about everything about the school, not only for exams.

Ge: Really, you're from Jiang Li?

Wen: What are you lying about?

Ge Yao'er felt that she had caught someone, because Jiang Li was difficult to take the exam, so it was not easy to find a senior, and her own school was not good, so not everyone could be admitted every year.

Unlike the pheasant university reported by Lin Bei, you can go to three or four graduate schools every year, and a large number of seniors have all made up for one research, two studies and three studies.

Ge: I'm from a second college, will this have an impact? I don't know if I can get in.

For Wen Xiaoguang, it doesn't matter where she is, but the question itself...... The second is to take the 985 test, do you think it will have an impact?

Just like when he later studied for a Ph.D., the doctoral supervisor also values 'origin', which does not refer to your family background, but your educational background.

So the answer is of course there is, and it is very much, but... He wanted people to buy his things, so he gave a standard answer, saying it and not saying it.

Wen: The postgraduate entrance examination depends on strength and luck, and the key lies in your determination.

Is it the same as not saying? But I can't fault it.

Ge: I actually want to go to Jiangnan Institute of Technology, I have seen photos of the new campus on the Internet, it is very beautiful and very dreamy!

Pretty is still dreamy?, he thought about it.

Lukewarm:...... It's okay.

Ge Yao'er rolled her eyes: Are you really Jiang Li's?

Wen: You look at it every day, and you think it's okay.

Ge Yao'er couldn't stand it when she saw this, because ...... She's envious!

It's really more popular than people!

Ge: Is that a study material for you?

Wen: No, it was harder for me to learn than that.

The girl's heart is cold!

Ge: That's it, I can't even look at the past papers!

Wen: So you have to pass this level first, tell me this week's questions on QQ on Sunday, and I'll answer them for you. You should also have a little real question, compare and see, you can rest assured that it is true or false, and you can return it at any time if you are not satisfied.

To be honest, she really doesn't know if it's true or not,

But one thing is right, if you don't want to buy it, return it.

Legend has it that there are electronic product enthusiasts, he buys the flagship machine of each brand, gets a mobile phone box and sends it to a circle of friends, and then returns it.

Suffocating operation.

Ge: 350 is a bit expensive......

Wen: All the past papers are handwritten by me, and the price comes with the Q&A at the end.

Ge Yao'er is not an idiot, saying so, if you don't reply to my QQ when the time comes, what can I do? Can I really cut you down the network cable?

But judging from the picture, the truth is also quite reliable,

In short, buy it first, and return it if it doesn't work.

Ge: Okay, then I'll place an order.

Wen: Thank you.

It doesn't take more than a few minutes.

Wen: If you place an order, you can ask me questions, and today is Sunday.

Ge Yao'er's eyes lit up, huh?

That's right.

Thinking about it like this, she came to her mind, if the topic is not clear, she will refund it immediately!

However, without two brushes, how dare you talk like that.

Ge: Okay, so what do I call you?

Wen Xiaoguang couldn't think of any two-dimensional screen name for a while, and he didn't think it was appropriate to say his real name, but if he didn't say that he was smart, he quickly thought of one,

While protecting your privacy, you can reveal a little truth, and also make the other party believe in your 'business ability' even more!

Wen: Well, you can just call me Dr. Wen.

Ge Yao'er in the laboratory really had her eyes shining: Oh, it's still a doctor!

Wen: You sort out the questions, 1, 2, and 3 are clearly organized, and I will answer them for you. Now I'll ship it to you first, and you can get it sooner. May I?

Ge Yao'er bit her lip and thought about it, what kind of goods are being sent, and it has not been shipped yet, test you first to see if it is true or false.

JG: Wait a minute, I'm looking at it right now, and I've got a problem.

Wen Xiaoguang looked at it and replied: Then you can say it.

Ge: It's the optimization part, Jiang Li has made a little requirement for the mathematics part, which is different from other schools, in fact, we didn't have this course when we were undergraduates, so it seems to be very difficult.

Wen: Well, don't be afraid, there are requirements for the future of machine learning, data mining or deep learning neural networks, even if you use some simple models, the optimization theory and algorithm have a wide range of applications, and the other is that the teacher who made the problem is good at mathematics and attaches importance to mathematics, so there is such a requirement, but its requirements for this aspect are only limited to understanding, and the questions are very simple.

Ge Yao'er is stupid when she sees this paragraph, wait a while......

Neural networks?

Data mining?

Please type Chinese, thank you.

Ge: But I can't even read the book, and I still don't know what optimization is.

For those who spend money, Wen Xiaoguang is patient enough: Let's put it this way. Universities should have a course on mathematical models, models are like people learning thinking patterns, in each learning process, people know how to learn, where to learn, and can adjust if they are wrong, but models and computers are not so smart.

Optimization is a tool that tells the model what to learn and how to learn it. In mathematics, model learning is often a mapping function, that is, the parameters in the model, the quality of this parameter is reflected through the answer, if it is not good enough, optimization can help adjust.

Does that make it clear?

Ge Yao'er can barely understand something, after all, what she said is so simple, and if she can't understand it, she will be mentally retarded.

She asked again: What is the convex optimization mentioned in some places?

Wen: Convex optimization is a subfield of optimization, which is simply the minimization of the convex function defined in the convex set, and the application value of convex optimization is relatively high, so there are many studies. The local optimal solution of the convex problem is the global optimal solution, and the Lagrange duality in the convex optimization theory provides the guarantee of the optimality of the convex optimization algorithm.

In addition, some non-convex problems can be equivalent to convex problems or approximate and approximate the boundaries with convex problems through certain means, such as deep learning, in which the key Back Propagation algorithm is essentially the gradient descent method in the convex optimization algorithm, even if the problem is extremely non-convex, the gradient descent still has a good performance.

Do you understand?

Ge: Convex, it turns out that you are really a doctor.

Wen Xiaoguang: Of course, you still doubt this?

The face is not red and the heart is not beating.

This is the end of the chat, Wen Xiaoguang went to print, and then shipped.

Ge Yao'er was shaking Lin Bei who was sitting next to the laboratory: "Beibei, great, I'm looking for a particularly awesome person!"

Lin Bei didn't know why: "What? What kind of people?!"

Ge Yao'er didn't say anything, just pulled her over and pulled out the chat history on the computer, "Look." ”

Limbey: "it!"