Savez-vous ce qu’est le big data ? Savez-vous quel en est son but premier et pourquoi ? Depuis le début d’Internet, toutes les données de navigations et autres sont stockées un peu partout dans le monde sur des centaines des serveurs différents et parfois même là où on ne les attend pas. Nous allons voir ensemble à quoi et comment sont utilisées ces données.
Tout d’abord, qu’est-ce que c’est ? L’idée principale du BigData est + ou – comme celle des cookies, c’est-à-dire enregistrer beaucoup de données, le plus possible (d’où sont nom : « Grande données » / « Données importantes » (en français).
Voici un petit tableau expliquant les volumes de données enregistrées dans le monde entier par période.
Période
Volume
… à 2003
5 exabytes (soit 5 millions de To / 5 milliards de Go) sont enregistrées
En 2011
5 EB (exabytes) étaient produits et récoltés en seulement 2 jours
En 2013
5 EB étaient produits et récoltés en seulement 10 minutes
Ce tableau provient du site : Culture-Informatique
Imaginez ce que cela peut représenté, surtout que maintenant, tout le monde possède généralement un smartphone en plus de son ordinateur, qui utilise lui aussi beaucoup de données.
La ou le bigdata est différent des cookies, c’est que les cookies sont des données de navigations web, et peuvent être effacées, contrairement au BigData.
Qu’est-ce que le Big Data enregistre ?
Quelques petits exemple :
Les sites web sur lesquels vous vous rendez
Les applications de votre smartphone
Vos conversations téléphoniques
Les mails que vous recevez
Les recherches que vous effectués
Vos achats sur internet (afin d’avoir vos centre d’intérêts)
Tout ce qui se connecte et utilise internet en soit… ! Vous ne vous en doutez peut-être pas, mais le B.D enregistre également :
Votre GPS
Tous les appareils connectés de votre domicile et / ou bureau
Vos thermostats (s’ils sont possibles à régler à distance)
etc … (tout les appareils utilisant Internet)
Mais quel en est son objectif ?
L’objectif du BigData est de collecter vos données afin de connaître d’avantages le consommateur pour ensuite lui proposer des produits / services adaptés à vos besoins, envies et recherches précédentes.
Comment sont stockées toutes ces données ?
Le stockage d’un tel volume de données est un travail rigoureux. Normalement, pour stocker un volume de données importantes, on utilise des bases de données (COMING SOON). Le problème est que la taille des données est tellement importante actuellement que ce n’était pas possible, il aura fallu penser à changer toute la manière de stockage… Et c’est à ce moment qu’on créa la règles des 5 V :
Volume : Stocker un maximum d’informations
Variété : Stocker beaucoup de données de toute sortes
Vélocité : Avoir un accès rapidement à toutes ces données
Véracité : Les données doivent être vraies
Valeur : Ces données doivent apporter de la valeur On pourrait y ajouter aussi :
Vertu : Ces données respectent les règlementations en vigueur
En conclusion
Nous pouvons dire qu’il est important de faire attention à nos données et à comment elles pourraient être utilisées. Nous ne pouvons malheureusement pas y faire grand chose, contrairement au cookies (C’est quoi les cookies ?)
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After coming out, Lin Xuan breathed a sigh of relief, and the three of Xiu Luoyu felt as if they had passed away.From Tianzong s side, five people came over. They were the five brothers with terrible auras.
I am afraid that between the Dragon Prince and Lin Xuan, Daozong can only choose in the end.He is also very strong. He is a young top talent. Seeing that Lin Xuan didn t respond, he immediately became angry.
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In this case, let those people know what regret is, Lin Xuan said, the three places, whoever takes out the things will be good for whom.With a flash of his figure, he cast Tianxingbu, and disappeared instantly like a ray of light.
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At the same time, in another practice room, the Sanren of the Six Paths opened his eyes, he stood up, he has recovered at this moment, and he is going to go out to exchange rewards, he ranks the 2000th, and can exchange for one Special reward, what is it Let him look forward to it very much.What Doppelg nger After Elder Lan heard this, his pupils shrank sharply.
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Which dragon clan are you from Demon Dragon Clan The Dragon Prince frowned.Next, Lin Xuan and Xia Jiuyou began to recover, ready to go to the underworld, and Lin Xuan also told Bai Susu and the others to let them stay here for the time being, and he had one thing to do, the dark red dragon asked Dao, boy, do you need us to follow Lin Xuan thought for a while and said, no need, I can handle it by myself.
The two great saints moved quietly in secret, but were pierced by the man s gaze, and killed into a blood mist.Even the goddess of the iceberg showed a beautiful smile to Lin Xuan, How can it be Shadow is crazy, the other party s title of iceberg is not fake, he dismisses any top talent, why would he show up to this kid in front of him now Netizens please remind Please pay attention to rest your eyes when reading for a long time.
At that time, they will be able to deal with these enemies without any effort.Lin, let s go, Xue Linglong laughed. Lin Xuan nodded, his body flickered, and he walked towards the canyon in front of him.
I know, I know Alexander replied, It s just a joke I just think that giving the east to the Huaxia army for defense will be closer to China, which will be more beneficial to their supplies and reinforcements There is some truth in this statement, Because Huaxia s supply line is to the east.In fact, the devils are not only like this on the Chinese battlefield.
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The equipment may not be advanced enough, but the strength of the masses is very sufficient.Now that he sees this opportunity, he will not let it go easily.
If it was an ordinary soldier, he would have to give him a lesson if he went to the cafeteria just now When did you remember to eat You should go back and think about what to eat next time But when Wang Xuexin came, the old man Yan smiled and brought a bowl of sweet potato porridge and a piece of pancake, and after he was done, he brought a small bowl of vermicelli with a piece of meat in it, and said, Company Commander Wang, this is left over from last night.
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The lives of soldiers are not different because they drive tanks or follow infantry.Then, as soon as Yingjiang s plane entered the coastal area, news was sent out along the route through earth methods one by one, and then before the devil could react, he took the first step to rescue the person and hid him.
Even if our army has tanks, if we want to successfully lay down This city is not easy Li Yunlong looked at the map for a while, then turned to ask Wang Xuexin, What do you think Is there any difficulty We may not have such things as moats outside the moat.The combination of these two urgent needs is not worth ten T34s The general counsel immediately felt that he had made a profit, and he was still making a lot of money.
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The Independent Regiment did have some gunners, but if they were all transferred to the Rocket Battalion, there would be no one left.Some people also proposed to disguise themselves as ordinary people and sneak into the city to cooperate with others.
If the map cannot read or understand the information left by teammates, or the sense of direction is not strong, go a little If you don t circle, you will get lost and fall behind
No matter how good your skills are, you can t use them.He Li Yunlong not only took it down with real swords and guns, but also exchanged it with an almost impossible task.
In order not to suffer from this, he listened to Wu Zheng s words.The gray military uniform was dyed with plant ash. Spread the white cloth, spread it evenly with the pot ash from the kang of the common people, then pour water on it and step on it with your feet, or roll it with a roller.
We can t hope that the cigarette butt will hit the plane directly.Chishang Chi Shangxianji threw the telegram on the ground weakly.
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It was a big banyan tree, and under the tree there were roots like blue veins everywhere.The army has only 100,000 people, and the military ranking can only barely rank seventh.
