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Les fausses nouvelles sont des informations diffusees sur Internet. Meme si vous le voyez sur le web, cela ne signifie pas que c'est une information vaild.

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L'augmentation des fausses nouvelles sur les medias sociaux au cours des annees, et comment l'election de 2016 en Amerique l'a affecte.

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L'augmentation des fausses nouvelles sur les medias sociaux au cours des annees, et comment l'election de 2016 en Amerique l'a affecte.

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Le nombre de fausses nouvelles qui sont devenues virales sur Facebook a augmente de 6 milliards en seulement un mois.

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Cette video dit que quand nous postons de fausses nous cassons une reputation ou une responsabilite. Les nouvelles des medias sociaux sont peu fiables et fausses, mais nous choisissons de les diffuser pour gagner en popularite.

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Fausses nouvelles: suffit d'y croire | Corde Sensible

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Les fausses nouvelles sont le sujet de l'heure dans l'univers médiatique. Même que plusieurs croient qu'elles auraient influencé les résultats des dernières élections américaines. Cette semaine, on a rencontré une personne qui partage des fausses nouvelles. Mais on a aussi découvert que l'une des plus importantes usines à fausses nouvelles du monde est la propriété d'un Québécois.

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La fiabilite des differentes plateformes technologiques selon les internautes et les non-internautes

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La fiabilite des differentes plateformes technologiques selon les internautes et les non-internautes

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la majorite des internautes pense qu'Internet est fiable quand les donnees de l'article prouvent que ce n'est pas le cas.

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Les medias sociaux sont-ils une source fiable d'information?

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Les medias sociaux sont-ils une source fiable d'information?

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Non, les medias sociaux ne sont pas une source fiable. C'est parce que, l'Universite de Columbia dit, "la desinformation est tout aussi susceptible de devenir virale qu'une information fiable" sur les reseaux sociaux. Selon l'article, 72% des etudiants font confiance a de faux sites Web qui ont eu de fausses nouvelles a leur sujet, de sorte que les jeunes sont plus vulnerables aux fausses nouvelles.

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Sharing election hashtags: Dots are Twitter accounts; lines show retweeting; larger dots are retweeted more. Red dots are likely bots; blue ones are likely humans. Credit: Clayton Davis, CC BY-ND

If you get your news from social media, as most Americans do, you are exposed to a daily dose of hoaxes, rumors, conspiracy theories and misleading news. When it's all mixed in with reliable information from honest sources, the truth can be very hard to discern.

In fact, my research team's analysis of data from Columbia University's Emergent rumor tracker suggests that this misinformation is just as likely to go viral as reliable information.

Many are asking whether this onslaught of digital misinformation affected the outcome of the 2016 U.S. election. The truth is we do not know, although there are reasons to believe it is entirely possible, based on past analysis and accounts from other countries. Each piece of misinformation contributes to the shaping of our opinions. Overall, the harm can be very real: If people can be conned into jeopardizing our children's lives, as they do when they opt out of immunizations, why not our democracy?

As a researcher on the spread of misinformation through social media, I know that limiting news fakers' ability to sell ads, as recently announced by Google and Facebook, is a step in the right direction. But it will not curb abuses driven by political motives.
Exploiting social media
About 10 years ago, my colleagues and I ran an experiment in which we learned 72 percent of college students trusted links that appeared to originate from friends - even to the point of entering personal login information on phishing sites. This widespread vulnerability suggested another form of malicious manipulation: People might also believe misinformation they receive when clicking on a link from a social contact.

To explore that idea, I created a fake web page with random, computer-generated gossip news - things like "Celebrity X caught in bed with Celebrity Y!" Visitors to the site who searched for a name would trigger the script to automatically fabricate a story about the person. I included on the site a disclaimer, saying the site contained meaningless text and made-up "facts." I also placed ads on the page. At the end of the month, I got a check in the mail with earnings from the ads. That was my proof: Fake news could make money by polluting the internet with falsehoods.

Sadly, I was not the only one with this idea. Ten years later, we have an industry of fake news and digital misinformation. Clickbait sites manufacture hoaxes to make money from ads, while so-called hyperpartisan sites publish and spread rumors and conspiracy theories to influence public opinion.

This industry is bolstered by how easy it is to create social bots, fake accounts controlled by software that look like real people and therefore can have real influence. Research in my lab uncovered many examples of fake grassroots campaigns, also called political astroturfing.

In response, we developed the BotOrNot tool to detect social bots. It's not perfect, but accurate enough to uncover persuasion campaigns in the Brexit and antivax movements. Using BotOrNot, our colleagues found that a large portion of online chatter about the 2016 elections was generated by bots.
Creating information bubbles
We humans are vulnerable to manipulation by digital misinformation thanks to a complex set of social, cognitive, economic and algorithmic biases. Some of these have evolved for good reasons: Trusting signals from our social circles and rejecting information that contradicts our experience served us well when our species adapted to evade predators. But in today's shrinking online networks, a social network connection with a conspiracy theorist on the other side of the planet does not help inform my opinions.

Copying our friends and unfollowing those with different opinions give us echo chambers so polarized that researchers can tell with high accuracy whether you are liberal or conservative by just looking at your friends. The network structure is so dense that any misinformation spreads almost instantaneously within one group, and so segregated that it does not reach the other.

Inside our bubble, we are selectively exposed to information aligned with our beliefs. That is an ideal scenario to maximize engagement, but a detrimental one for developing healthy skepticism. Confirmation bias leads us to share a headline without even reading the article.

Our lab got a personal lesson in this when our own research project became the subject of a vicious misinformation campaign in the run-up to the 2014 U.S. midterm elections. When we investigated what was happening, we found fake news stories about our research being predominantly shared by Twitter users within one partisan echo chamber, a large and homogeneous community of politically active users. These people were quick to retweet and impervious to debunking information.

In this graph of echo chambers in the Twittersphere, purple dots represent people spreading false claims about the Truthy research project; the two accounts that sought to debunk the false information are in orange on the far left. Credit: Giovanni Luca Ciampaglia, CC BY-ND

Viral inevitability
Our research shows that given the structure of our social networks and our limited attention, it is inevitable that some memes will go viral, irrespective of their quality. Even if individuals tend to share information of higher quality, the network as a whole is not effective at discriminating between reliable and fabricated information. This helps explain all the viral hoaxes we observe in the wild.

The attention economy takes care of the rest: If we pay attention to a certain topic, more information on that topic will be produced. It's cheaper to fabricate information and pass it off as fact than it is to report actual truth. And fabrication can be tailored to each group: Conservatives read that the pope endorsed Trump, liberals read that he endorsed Clinton. He did neither.
Beholden to algorithms
Since we cannot pay attention to all the posts in our feeds, algorithms determine what we see and what we don't. The algorithms used by social media platforms today are designed to prioritize engaging posts - ones we're likely to click on, react to and share. But a recent analysis found intentionally misleading pages got at least as much online sharing and reaction as real news.

This algorithmic bias toward engagement over truth reinforces our social and cognitive biases. As a result, when we follow links shared on social media, we tend to visit a smaller, more homogeneous set of sources than when we conduct a search and visit the top results.

Existing research shows that being in an echo chamber can make people more gullible about accepting unverified rumors. But we need to know a lot more about how different people respond to a single hoax: Some share it right away, others fact-check it first.

We are simulating a social network to study this competition between sharing and fact-checking. We are hoping to help untangle conflicting evidence about when fact-checking helps stop hoaxes from spreading and when it doesn't. Our preliminary results suggest that the more segregated the community of hoax believers, the longer the hoax survives. Again, it's not just about the hoax itself but also about the network.

Many people are trying to figure out what to do about all this. According to Mark Zuckerberg's latest announcement, Facebook teams are testing potential options. And a group of college students has proposed a way to simply label shared links as "verified" or not.

Some solutions remain out of reach, at least for the moment. For example, we can't yet teach artificial intelligence systems how to discern between truth and falsehood. But we can tell ranking algorithms to give higher priority to more reliable sources.
Studying the spread of fake news
We can make our fight against fake news more efficient if we better understand how bad information spreads. If, for example, bots are responsible for many of the falsehoods, we can focus attention on detecting them. If, alternatively, the problem is with echo chambers, perhaps we could design recommendation systems that don't exclude differing views.

To that end, our lab is building a platform called Hoaxy to track and visualize the spread of unverified claims and corresponding fact-checking on social media. That will give us real-world data, with which we can inform our simulated social networks. Then we can test possible approaches to fighting fake news.

Hoaxy may also be able to show people how easy it is for their opinions to be manipulated by online information - and even how likely some of us are to share falsehoods online. Hoaxy will join a suite of tools in our Observatory on Social Media, which allows anyone to see how memes spread on Twitter. Linking tools like these to human fact-checkers and social media platforms could make it easier to minimize duplication of efforts and support each other.

It is imperative that we invest resources in the study of this phenomenon. We need all hands on deck: Computer scientists, social scientists, economists, journalists and industry partners must work together to stand firm against the spread of misinformation.

This article was originally published on The Conversation. Read the original article.

Provided by: The Conversation

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Misinformation on social media-can technology save us?

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If you get your news from social media, as most Americans do, you are exposed to a daily dose of hoaxes, rumors, conspiracy theories and misleading news. When it's all mixed in with reliable information from honest sources, the truth can be very hard to discern.

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La fiabilite des nouvelles sur les medias sociaux dans un graphique

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La fiabilite des nouvelles sur les medias sociaux dans un graphique

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54% des repondants ont dit que les medias sociaux sont moins fiables que les autres sources d'information.

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Les nouvelles d'Internet et des medias sociaux sont generalement fausses parce que nous peuvons ecrire un article avec et ou ils veulent.