Mathematicians clarify why people sensitive to trends are doing similar appearance

ByFreeparking: - |

"Why do Japanese people become stylish as they dress up?"The question isYahoo! ChiebukuroIt seems that there are many people who feel that fashionable people are dressed in the same way as they go up, but such a mysteryJonathan TouboulI have clarified Mr. with full use of mathematics.

The mathematician who proved why hipsters all look alike - The Washington Post
http://www.washingtonpost.com/news/storyline/wp/2014/11/11/the-mathematician-who-proved-why-hipsters-all-look-alike/


Mr. Jonathan Touboul, a mathematician and neuroscientist, is a French science and engineering elite training institutionEcole polytechniqueA person who has been awarded a prize in a paper from a content that is "born and simulates neurons in the brain". Mr. Jonathan said "Pulsatile localized dynamics in delayed neural-field equations in arbitrary dimension"Or"Propagation of chaos in neural fields"We have published papers on brain science, such as"

Mr. Jonathan's efforts in recent years has focused on the research on "people who are sensitive to trends (hipster)", especially "Why are all hip stars doing the same appearance?" That's right. Jonathan says, "Humans and neurons can not immediately understand what's going on, so" lag "will occur." If this delay becomes too large, there is a case that the hipsters will unexpectedly wear clothes.

paperThen, when dividing into people with the character of "Conformist (person who adapts)" and "Hipstar (hipster)" against the outbreak, the public "punk (black)" and "normcore (white The graph below shows mathematically visualization of how to prefer the two style of clothing: People will be able to recognize what's going fashion with the time, but it is "Conformist" to get on it, do not ride and reprimand and try different clothes from people It is called "Hipstar (hip star)".

Three of four people adapt and one is a hipster, that is, a hipster is a minority. For example, if 3 out of 4 people are white as in the following graph "A1", people adapting around will try to become white and hip stars will try to become the opposite black. As a result, the style of the four people will be stable without changing. On the other hand, if two of those who adapt like "A2" are white, one who adapts and one of the hip stars is black, if you change the style according to their respective characteristics, the final Three people who adapt to white hypersistically become black, after that four people like "A1" will become stable without changing the style.


If the proportion of people who adapt to Hipster is comparable, figures of "B1" and "B2" below are shown. As you can see from the figure, in either case the style will be restored in a certain cycle.


Furthermore, when collecting 5000 hip stars and randomly applying one style of white and black randomly to each one, it is the following graph that shows what happens to the style of hipsters' style. The vertical axis represents the number of hip stars, and the horizontal axis represents time, and when you look at the style transition of hipster, it looks like noise. Hipster is trying to become a minority style somehow, "This is like a dog running around his tail," Jonathan said.


In the example so far, even those who adapt to hipsters, they immediately recognize the surrounding clothes and change their style. In fact, however, it takes some time for a person to recognize "what is popular now?" Therefore, Mr. Jonathan added an element called "delay" to recognize the trend in the examples so far. The following graph is a graph showing the style transition of 5000 hip stars plus the element of "delay" from the left to small, medium and large recognition. Although it is a style of 5000 hip stars that seemed to be only noise, the more it takes time to recognize, the more vertically black and white stripes are coming out clearly, this is going to be a different style from the surroundings Depending on the nature of the hipster, the hipsters will be dressed like the same.


As there are various styles of clothing, not all realistic hipsters are exactly the same outfit as Mr. Jonathan's research findings. However, Mr. Jonathan's "Hipster Falling Loop" may play a very important role in understanding the complex idea of ​​human beings, many economic theorists say this model I am evaluating.