"If a person gets the search cap of ants?", A movie that verifies using a physical engine is interesting

"Ant colony optimizationUsing an algorithm that reproduces the behavior when ants (ants) ants (ants) find a route from colonies (herds) to food, "If a person gets the search cap of ants?" Was verified with a physical engine movie It is open to the public. A surreal human who walks with both hands and both feet like ants on the ground has become a movie that challenges various challenges so that you can understand the high search ability of Ali in one shot, it is worth seeing at first sight.

【Physics Engine】 If a person gains the ability to search for ants? - YouTube


"Ali is amazing"


"I can carry even heavy luggage five times the weight"


"Workers (female fellows) are for colony survival"


The movie starts from "Ali's brief introduction" "We will search for bait with force".


It is this movie that gives human beings the superior search ability that such workers have.


As a way to give the ability of ant to humans, Doraemon's "Animal gang hat"And Tera Pharmers'"Bug's surgery"Is recommended. The ability to be given to a human in a movie is the search ability of a worker.


A worker anticipates that each individual walks randomly.


And, "There are 20 workers in the nest" ... ...


Ali (a person with the ability) comes out with Walla Walla from the nest which formed the house at the same time as the search starts.


And when searching, ants move around like "avoid contact between walls and solids".


"Ali who was in the first nest when randomly walking"


"Spread uniformly within the range of movement". In other words, whatever the place, it will be sure that any ant will pass (explore) as long as time passes.


And, Ali have the habit of "to return to the nest where there are queen and child as soon as you find the bait in the process of walking around."


I feed them to the queen ant and then I will go to find food again soon.


So, we will examine how Ali works by actually arranging the bait.


Place the bait on the other side of the entrance of the nest.


As anyone will certainly pass someone, as long as time passes, you should definitely find food, but what will it be like?


One individual will arrive at the bait at once.


When Ali finds the bait, he returns to the nest while leaving the pheromone on the ground.


Other individuals will find the pheromones issued by ants who have found the bait and will be able to follow them and arrive at the bait.


Other multiple solids also found food via pheromone ... ...


Ali's line can be made on the route connecting the nest and bait.


Ali 's going in the nest with a throat.


Besides finding baits, workers also do child rearing and cleaning.


In addition, there seems to be work too much to die.


However, if the ant that does not work exceeds 50%, the nest will collapse. It seems that there must be an exquisite balance to the extent that it is collapsed.


The process in which workers carry food to the queen ant is almost like this.


As time passes, pheromone gradually evaporates, so the worker seems to have a high probability of pheromone going in a dark direction.


And as soon as the bait is gone, the pheromone disappears, so the workers will again walk around randomly in search of food. So this is Ali's ability to explore.


Next, place the bait in 4 places and start the simulation.


The search began and bait in the front of the nest was found by haste.


However, the pheromone route that connects the nest to the food quickly does not open, and the bait is sparsely delivered until a plurality of individuals notices the pheromone.


But with the passage of time, it will be Ali's matrix is ​​formed between the food and nest located closest to the nest.


And if the bait is gone ......


Another route is reinforced. Which route takes precedence will be determined by the concentration of pheromone. Near bait is processed first, because the pheromone is not evaporated and its concentration is high because it is nearby.


And finished carrying the second bait ......


After a while I found a third bait.


At the end the bait placed behind the entrance of the nest was processed.


Next, place the bait at the end of the parting road and observe how ants feed them.


Ants are released from the nest ... ...


After a while, one ant discovers bait and goes to the nest with pheromone.


"On the way back home chooses the path to branch with equal probability, but if the pheromone is dark it will take priority and head towards the nest." If there are many ants bringing food to the nest before, there is a high possibility that the pheromone remains on the route to the nest. However, when it is just the time to discover bait, pheromone does not exist, or it is thin, it seems that there is a case that the correct route to return to the nest is not understood and it may be detouring.


However, as the number of ants carrying bait increases ...


You will be able to carry food at the shortest distance.


"This is because pheromones on the detour road become thin due to evaporation".


So, in the case of a simple route, it was found that the workers can feed the shortest distance. Let's try simulation that Ali walks to Shibuya station by what is complicated route.


Put bait in front of Hachiko.


The basement of Shibuya station is reproduced with this feeling. The scale is 1/5, which does not reproduce the exact height etc, but the complexity by multiple homes and hierarchies is genuine as it is.


This is a map of the real Shibuya station.


Queen Ali will place it in the direction of Toyoko Line Daikanyama at the bottom of Shibuya Station.


This time I will find a route to Hachiko with 40 laborers.


In addition, if it is full size, it takes a huge amount of time to find Hachi public for the first time, he said that he adopted a one-fifth scale.


After a while from the start of the simulation, one of the workers as usual finds food in front of Hachiko.


Following this, the workers who come out from underground carry food from before Hachiko.


It is like this in the basement. It is during the time that ants are feeding them.


"After a while the two routes were strengthened with pheromones."


The two routes are a route that one goes through the slope of the Miyama Masaka side basement from the 2nd floor to the 3rd floor ... ...


Route to get off to the Hanzomon line home first.


It is like this when I write the route Ali strengthened on the actual Shibuya station campus map. It is easy to understand that they are carrying the bait by an appropriate route, not going back to the queen ant while wandering around the station guruguru.


So, if a person gets an Ali's ability to explore, he will be able to reach Queen Ali through an appropriate route without hesitation even at the Shibuya station where even human beings get lost.