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manoelribeiro's profile
Manoel
Manoel
Manoel
@manoelribeiro

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Manoel

@manoelribeiro

CS PhD student @ dlab (EPFL🇨🇭) / UFMG 🇧🇷 alumni Keywords: Computational Social Science, Online Platforms, Online Communities, Content Moderation

manoelhortaribeiro.github.io
Joined January 2009

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    Manoel‏ @manoelribeiro 23 Aug 2019

    In our new pre-print, we find significant evidence of user radicalization on #YouTube. Tracking >79M comments across >300k videos, we show that those who comment on the so-called Intellectual Dark Web/Alt-lite consistently migrate to Alt-right channels. https://arxiv.org/abs/1908.08313 pic.twitter.com/YTjuUkZCxV

    7:17 AM - 23 Aug 2019
    • 418 Retweets
    • 717 Likes
    • Jennifer Partridge Null Kathleen Allyson Harrison (Elgie) Simão Rubim Pelikan Rebecca Henry Andy Halterman C. Reed Virgilio Almeida
    126 replies 418 retweets 717 likes
      1. New conversation
      2. Manoel‏ @manoelribeiro 23 Aug 2019

        Really grateful towards my co-authors @raphaottoni , @cervisiarius, @virgilioalmeida , @wagnermeirajr . Also, thanks @jhblackb (a.k.a. Mr. Jimmy Black) for giving me tons of feedback. If you want a tl;dr on the paper, stick with me for a few more tweets below! 👇👇👇

        4 replies 8 retweets 61 likes
        Show this thread
      3. Manoel‏ @manoelribeiro 23 Aug 2019

        In late 2017, I got surprised by the presence of fringe ideologies (e.g. White Supremacy) on YouTube. In 2018 I got redirected to one of such channels from an "Anti-SJW"-style video. Later that year, when I read @zeynep and @beccalew pieces on the alleged phenomena of...pic.twitter.com/riO1Ai7IUp

        5 replies 9 retweets 59 likes
        Show this thread
      4. Manoel‏ @manoelribeiro 23 Aug 2019

        ...user radicalization on YouTube it all just clicked in my head. I still thought that the evidence indicating this phenomenon was happening was very anecdotal. Spent months devising a careful data collection method with @raphaottoni. By the end of this period...pic.twitter.com/8taACmdp2v

        4 replies 8 retweets 56 likes
        Show this thread
      5. Manoel‏ @manoelribeiro 23 Aug 2019

        ...we collected and annotated a YouTube dataset of unprecedented size. 360 channels, more than 79 million comments, more than 2 million recommendations. We broadly categorized channels into Alt-right, Alt-lite, and Intellectual Dark Web...pic.twitter.com/TYrL8EFJPA

        9 replies 10 retweets 63 likes
        Show this thread
      6. Manoel‏ @manoelribeiro 23 Aug 2019

        ...These communities were broadly defined by non-profits, by the media, and by the own content creators. We also collected control channels from large media outlets. Our findings blew my mind a little bit:pic.twitter.com/rLhUCuxOEu

        2 replies 7 retweets 46 likes
        Show this thread
      7. Manoel‏ @manoelribeiro 23 Aug 2019

        1) We looked at the growth of the I.D.W., the Alt-lite and the Alt-right throughout the last decade in terms of videos, likes, and views, finding a steep rise in activity and engagement in the communities of interest when compared with the control channels;

        3 replies 5 retweets 49 likes
        Show this thread
      8. Manoel‏ @manoelribeiro 23 Aug 2019

        2) We inspect the intersection of commenting users within the communities, finding they increasingly share the same user base. For example, we find that more than half of users who commented on Alt-right channels in 2018 also comment on Alt-lite and on I.D.W. channels;

        2 replies 6 retweets 47 likes
        Show this thread
      9. Manoel‏ @manoelribeiro 23 Aug 2019

        3) We also find that the intersection is not only growing due to new users but that there is significant user migration among the communities being studied. Users that initially comment only on content from the I.D.W. or the Alt-lite throughout the years consistently start to...

        1 reply 4 retweets 49 likes
        Show this thread
      10. Manoel‏ @manoelribeiro 23 Aug 2019

        > on Alt-right content. These users are a significant fraction of the Alt-right commenting user base. Interestingly, although control channels share, on a yearly basis, a significant number of users with Alt-right channels, we cannot observe significant user migration from them.

        2 replies 4 retweets 48 likes
        Show this thread
      11. Manoel‏ @manoelribeiro 23 Aug 2019

        4) Lastly, we take a look at the impact of YouTube's recommendation algorithms, running simulations on recommendation graphs. Our analyses show that, particularly through the channel recommender system,...

        2 replies 7 retweets 50 likes
        Show this thread
      12. Manoel‏ @manoelribeiro 23 Aug 2019

        > Alt-lite channels are easily discovered from I.D.W. channels, and that Alt-right channels may be reached from the two other communities (!). I believe our research has implications for content creators and for YouTube:

        5 replies 10 retweets 56 likes
        Show this thread
      13. Manoel‏ @manoelribeiro 23 Aug 2019

        a) I believe that popular content creators like those in the Intellectual Dark Web, should be aware that this process is happening I genuinely believe this is not what they want, and they are in a good position to try to weaken fringe ideologies like white supremacy.

        11 replies 6 retweets 53 likes
        Show this thread
      14. Manoel‏ @manoelribeiro 23 Aug 2019

        b) YouTube has to be held accountable and take action. I believe our work presents significant evidence that a large scale radicalization happened on the website. This process has led to horrific acts of terrorism, and should be addressed accordingly.

        5 replies 17 retweets 79 likes
        Show this thread
      15. Manoel‏ @manoelribeiro 23 Aug 2019

        Lastly, I will tag some people whom I want this work to reach. They are a mix of scholars and YT personalities I think are making a difference! Hope you forgive my lack of etiquette :)! @yaso @zeynep @beccalew @shaun_jen @ContraPoints @_DanArrows @Hbomberguy @PhilosophyTube

        11 replies 3 retweets 60 likes
        Show this thread
      16. End of conversation

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