{"id":1342,"date":"2024-10-30T10:58:53","date_gmt":"2024-10-30T09:58:53","guid":{"rendered":"https:\/\/www.uni.lu\/snt-fr\/?post_type=news&#038;p=1342"},"modified":"2024-10-31T12:05:54","modified_gmt":"2024-10-31T11:05:54","slug":"le-retrait-de-joe-biden-de-la-presidentielle-americaine-se-reflete-sur-tiktok","status":"publish","type":"news","link":"https:\/\/www.uni.lu\/snt-fr\/news\/le-retrait-de-joe-biden-de-la-presidentielle-americaine-se-reflete-sur-tiktok\/","title":{"rendered":"Le retrait de Joe Biden de la pr\u00e9sidentielle am\u00e9ricaine se refl\u00e8te sur TikTok"},"content":{"rendered":"\n<section class=\"wp-block-unilux-blocks-free-section section\"><div class=\"container xl:max-w-screen-xl\">\n<p><\/p>\n\n\n\n<p>Comment les \u00e9v\u00e9nements du monde r\u00e9el influencent-ils le sentiment et le comportement des utilisateurs sur les m\u00e9dias sociaux ? Ces derni\u00e8res ann\u00e9es, TikTok a \u00e9merg\u00e9 comme une force significative dans les campagnes politiques, remodelant la fa\u00e7on dont les candidats influencent l&rsquo;opinion publique. \u00c0 l&rsquo;approche des \u00e9lections pr\u00e9sidentielles am\u00e9ricaines de 2024, les chercheurs du SnT ont \u00e9tudi\u00e9 l&rsquo;impact du retrait de Joe Biden de la course sur la plateforme de m\u00e9dias sociaux.<\/p>\n\n\n\n<p><strong>Un tournant pour le sentiment et l&rsquo;engagement sur TikTok\u202f<\/strong><\/p>\n\n\n\n<p>L&rsquo;\u00e9tude, dirig\u00e9e par <a href=\"https:\/\/www.uni.lu\/snt-en\/people\/yuwei-chuai\/\">Yuwei Chuai<\/a> et <a href=\"https:\/\/www.uni.lu\/snt-en\/people\/gabriele-lenzini\/\">Gabriele Lenzini<\/a>, comprend un examen approfondi de 680.609 vid\u00e9os TikTok, totalisant plus de 4 milliards de vues, 23 millions de commentaires, 31 millions de partages et 335 millions de likes entre le 1er novembre 2023 et le 6 octobre 2024.<\/p>\n\n\n\n<p>Ces vid\u00e9os comprenaient des contenus officiels de partis politiques ainsi que des contenus g\u00e9n\u00e9r\u00e9s par des particuliers, o\u00f9 le candidat r\u00e9publicain ou d\u00e9mocrate \u00e9tait mentionn\u00e9.\u202f<\/p>\n\n\n\n<p>L&rsquo;objectif de l&rsquo;\u00e9tude \u00e9tait de comprendre l&rsquo;effet du retrait de Joe Biden des \u00e9lections am\u00e9ricaines de 2024 sur le sentiment des utilisateurs de TikTok. Le sentiment positif est bas\u00e9 sur la description de la vid\u00e9o et la transcription de la voix en texte, qui sont comprises dans la publication originale de la vid\u00e9o. Ce sentiment peut potentiellement influer sur les sentiments exprim\u00e9s dans les commentaires, ce qui m\u00e9rite d&rsquo;\u00eatre \u00e9tudi\u00e9 plus en d\u00e9tail.\u202f<\/p>\n\n\n\n<p>Avant que Joe Biden ne se retire de la course, les vid\u00e9os pr\u00e9sentant le candidat r\u00e9publicain Donald Trump suscitaient un sentiment positif plus \u00e9lev\u00e9 et un sentiment n\u00e9gatif plus faible que celles pr\u00e9sentant son adversaire d\u00e9mocrate. Mais le sc\u00e9nario s&rsquo;est invers\u00e9 de fa\u00e7on spectaculaire apr\u00e8s le retrait de Joe Biden : \u00ab Le sentiment positif dans les messages vid\u00e9o pr\u00e9sentant le candidat d\u00e9mocrate a augment\u00e9 de 46,8 % et le sentiment n\u00e9gatif a chut\u00e9 de 52 % \u00bb, a observ\u00e9 M. Chuai.\u202f\u202f<\/p>\n\n\n<figure class=\"wp-block-dev4-reusable-blocks-image  object-fit--cover\">\n    \n<img decoding=\"async\" class=\"wp-block-image unilux-custom-image-block\"\n                alt=\"Changement dans le sentiment et l&#039;engagement des utilisateurs de TikTok apr\u00e8s le retrait de Joe Biden.\"\n            src=\"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/13\/2024\/10\/Screenshot-2024-10-30-at-08-52-50-Changes-in-Sentiments-and-User-Engagement-for-2024-U.S.-Presidential-Candidates-After-Bidens-Withdrawal-An-Analysis-of-TikTok-Videos-2410.15707v1.pdf.png\"\n                srcset=\"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/13\/2024\/10\/Screenshot-2024-10-30-at-08-52-50-Changes-in-Sentiments-and-User-Engagement-for-2024-U.S.-Presidential-Candidates-After-Bidens-Withdrawal-An-Analysis-of-TikTok-Videos-2410.15707v1.pdf-300x160.png 300w, https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/13\/2024\/10\/Screenshot-2024-10-30-at-08-52-50-Changes-in-Sentiments-and-User-Engagement-for-2024-U.S.-Presidential-Candidates-After-Bidens-Withdrawal-An-Analysis-of-TikTok-Videos-2410.15707v1.pdf-1024x547.png 1024w, https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/13\/2024\/10\/Screenshot-2024-10-30-at-08-52-50-Changes-in-Sentiments-and-User-Engagement-for-2024-U.S.-Presidential-Candidates-After-Bidens-Withdrawal-An-Analysis-of-TikTok-Videos-2410.15707v1.pdf-768x410.png 768w, https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/13\/2024\/10\/Screenshot-2024-10-30-at-08-52-50-Changes-in-Sentiments-and-User-Engagement-for-2024-U.S.-Presidential-Candidates-After-Bidens-Withdrawal-An-Analysis-of-TikTok-Videos-2410.15707v1.pdf.png 1136w\"\n                style=\"object-position: 50.00% 50.00%; font-family: &quot;object-fit: cover; object-position: 50.00% 50.00%;&quot;; aspect-ratio: 16\/9; object-fit: cover; width: 100%;\"\n        loading=\"lazy\"\n\/>    <\/figure>\n\n\n<p><\/p>\n\n\n\n<p>L&rsquo;augmentation de l&rsquo;engagement est particuli\u00e8rement notable. Les vid\u00e9os mentionnant soit la candidate d\u00e9mocrate (Kamala Harris), soit le candidat r\u00e9publicain (Donald Trump) ont syst\u00e9matiquement suscit\u00e9 plus d&rsquo;engagement, \u00e9tant 53,3 % plus susceptibles d&rsquo;\u00eatre partag\u00e9es et 77,4 % plus susceptibles d&rsquo;\u00eatre \u00ab\u00a0lik\u00e9es\u00a0\u00bb.\u202f\u202f<\/p>\n\n\n\n<p><strong>De la collecte de donn\u00e9es aux strat\u00e9gies de campagne virale\u202f<\/strong><\/p>\n\n\n\n<p>Les chercheurs ont mis au point une m\u00e9thodologie rigoureuse pour collecter des donn\u00e9es \u00e0 partir de l&rsquo;API ouverte de TikTok. Ils ont \u00e9tabli des requ\u00eates de recherche pour s\u00e9lectionner au hasard des vid\u00e9os mentionnant les candidats r\u00e9publicains ou d\u00e9mocrates et ont collect\u00e9 les donn\u00e9es \u00e0 plusieurs reprises. Cette approche a permis de minimiser les biais et de garantir un \u00e9chantillon repr\u00e9sentatif du discours politique sur TikTok, en capturant un large \u00e9ventail d&rsquo;interactions et de r\u00e9actions des utilisateurs pendant plus d&rsquo;un an.\u202f<\/p>\n\n\n\n<p>Toutefois, cette \u00e9tude se concentre uniquement sur TikTok, dont l&rsquo;API, ou interface officielle d&rsquo;acc\u00e8s aux donn\u00e9es, est ouverte aux scientifiques. Les r\u00e9sultats pourraient diff\u00e9rer d&rsquo;une plateforme en ligne \u00e0 l&rsquo;autre, ce qui souligne la n\u00e9cessit\u00e9 pour un plus grand nombre de plateformes de m\u00e9dias sociaux de fournir des donn\u00e9es accessibles \u00e0 la recherche scientifique.\u202f\u202f<\/p>\n\n\n\n<p>\u00ab La fermeture actuelle de certaines API est pr\u00e9occupante \u00bb, d\u00e9clare <a href=\"https:\/\/www.c2dh.uni.lu\/fr\/people\/valerie-schafer\">Val\u00e9rie Schafer<\/a>, professeur au C\u00b2DH, sp\u00e9cialis\u00e9e dans l&rsquo;histoire de l&rsquo;informatique, des t\u00e9l\u00e9communications et des r\u00e9seaux. Mme Schafer a dirig\u00e9 un r\u00e9cent projet de recherche sur l&rsquo;histoire de la <a href=\"https:\/\/www.c2dh.uni.lu\/data\/online-virality\">viralit\u00e9 en ligne<\/a> et a constat\u00e9 que certaines analyses effectu\u00e9es sur les m\u00e9dias sociaux (et notamment sur Twitter) ne seraient plus possibles aujourd&rsquo;hui.\u202f\u202f<\/p>\n\n\n\n<p>Elle souligne \u00e9galement le besoin d&rsquo;\u00e9tudes qualitatives, par exemple sur la cr\u00e9ativit\u00e9 des utilisateurs. Mme Schafer fait r\u00e9f\u00e9rence aux r\u00e9actions suscit\u00e9es par la fausse d\u00e9claration de M. Trump lors du d\u00e9bat pr\u00e9sidentiel organis\u00e9 par ABC, selon laquelle les <a href=\"https:\/\/www.bbc.com\/news\/articles\/c77l28myezko\" target=\"_blank\" rel=\"noreferrer noopener\">immigr\u00e9s clandestins mangeaient les animaux domestiques<\/a>. Cette all\u00e9gation a d\u00e9clench\u00e9 une forte vague de r\u00e9actions en ligne, de m\u00e8mes, de vid\u00e9os parodiques et de <a href=\"https:\/\/music.youtube.com\/watch?v=3BrCvZmSnKA\" target=\"_blank\" rel=\"noreferrer noopener\">chansons<\/a>.\u202f<\/p>\n\n\n\n<p>\u00ab Cette campagne pr\u00e9sidentielle renforce clairement la tendance existante des \u00ab\u00a0fake news\u00a0\u00bb et de la viralit\u00e9. Il y a des \u00e9l\u00e9ments nouveaux et int\u00e9ressants, comme la forte participation des influenceurs ou la diffusion en direct sur des plateformes comme Twitch. Les nouvelles technologies sont \u00e9galement de la partie : les deepfakes audio et visuels et le contenu g\u00e9n\u00e9r\u00e9 par l&rsquo;IA sont clairement pr\u00e9sents dans la campagne \u00bb, d\u00e9veloppe Mme. Schafer.\u202f<\/p>\n\n\n\n<p>Apr\u00e8s de nombreux rebondissements ces derni\u00e8res semaines, l&rsquo;issue de l&rsquo;\u00e9lection pr\u00e9sidentielle am\u00e9ricaine reste incertaine. La journ\u00e9e de mardi prochain permettra d&rsquo;y voir plus clair.\u202f<\/p>\n\n\n\n<ul class=\"wp-block-unilux-blocks-button-list-v2\">\n<li class=\"wp-block-unilux-blocks-button-list-item-v2\"><a class=\"quick-link\" href=\"https:\/\/arxiv.org\/pdf\/2410.15707\" target=\"_blank\" role=\"link\" rel=\"noopener\" tabindex=\"0\"><span class=\"quick-link__container\">\n<div class=\"wp-block-unilux-blocks-block-inserter quick-link__img\"><\/div>\n\n\n\n<span class=\"quick-link__name wp-block-unilux-blocks-plain-text\">Lire l&rsquo;\u00e9tude compl\u00e8te<\/span>\n\n<svg aria-hidden=\"true\" focusable=\"false\" class=\"icon icon-outline icon--arrow-right \"><use xlink:href=\"https:\/\/www.uni.lu\/wp-content\/themes\/unilux-theme\/assets\/images\/icons\/icons-outline.svg#icon--arrow-right\"><\/use><\/svg><\/span><\/a><\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>\u00c0 propos de l&rsquo;\u00e9quipe du SnT<\/strong><\/p>\n\n\n\n<p>Yuwei Chuai fait partie du groupe de recherche sur la cybers\u00e9curit\u00e9 sociotechnique (<a href=\"https:\/\/www.uni.lu\/snt-en\/research-groups\/IRiSC\/\">IRiSC<\/a>) au SnT. Dirig\u00e9 par Gabriele Lenzini, IRiSC int\u00e8gre des m\u00e9thodes issues des sciences sociales et de la conformit\u00e9 juridique \u00e0 l&rsquo;informatique pour mener des recherches sur la cybers\u00e9curit\u00e9 sociotechnique. Ce projet de recherche est soutenu par le Fonds national de la recherche luxembourgeois (FNR) et le Fonds national de la recherche scientifique belge (FNRS), dans le cadre du projet REgulatory Solutions to MitigatE DISinformation (<a href=\"https:\/\/www.uni.lu\/snt-en\/research-projects\/remedis\/\">REMEDIS<\/a>).\u202f<\/p>\n\n\n\n<p><strong>\u00c0 propos de l&rsquo;\u00e9quipe du C\u00b2DH<\/strong><\/p>\n\n\n\n<p>Val\u00e9rie Schafer enseigne l&rsquo;histoire europ\u00e9enne contemporaine (EIH) et responsable de ce domaine de recherche au C\u00b2DH depuis 2020. Entre 2021 et 2024, Val\u00e9rie Schafer a dirig\u00e9 le projet de recherche soutenu par le FNR \u00ab Une histoire de la viralit\u00e9 en ligne \u00bb (<a href=\"https:\/\/www.c2dh.uni.lu\/fr\/projects\/une-histoire-de-viralite-en-ligne-hivi\">HIVI<\/a>). Il vise \u00e0 r\u00e9v\u00e9ler et \u00e0 historiciser le patrimoine des contenus viraux en ligne.<\/p>\n<\/div><\/section>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":326,"featured_media":1344,"template":"","format":"standard","meta":{"featured_image_focal_point":[],"show_featured_caption":false,"ulux_newsletter_groups":"","uluxPostTitle":"","uluxPrePostTitle":"","_trash_the_other_posts":false,"_price":"","_stock":"","_tribe_ticket_header":"","_tribe_default_ticket_provider":"","_tribe_ticket_capacity":"0","_ticket_start_date":"","_ticket_end_date":"","_tribe_ticket_show_description":"","_tribe_ticket_show_not_going":false,"_tribe_ticket_use_global_stock":"","_tribe_ticket_global_stock_level":"","_global_stock_mode":"","_global_stock_cap":"","_tribe_rsvp_for_event":"","_tribe_ticket_going_count":"","_tribe_ticket_not_going_count":"","_tribe_tickets_list":"[]","_tribe_ticket_has_attendee_info_fields":false},"news-category":[3],"news-topic":[9],"organisation":[221,183,220,196],"authorship":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.3 (Yoast SEO v22.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Le retrait de Joe Biden de la pr\u00e9sidentielle am\u00e9ricaine se refl\u00e8te sur TikTok - SnT actualit\u00e9s I Universit\u00e9 du Luxembourg<\/title>\n<meta name=\"description\" content=\"Comment les \u00e9v\u00e9nements du monde r\u00e9el influencent-ils le sentiment et le comportement des utilisateurs sur les m\u00e9dias sociaux ? 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