{"id":65790,"date":"2026-05-19T21:22:22","date_gmt":"2026-05-20T01:22:22","guid":{"rendered":"https:\/\/cifar.ca\/?p=65790"},"modified":"2026-05-19T21:22:22","modified_gmt":"2026-05-20T01:22:22","slug":"demystifier-les-grands-modeles-dia-pour-mieux-en-attenuer-les-risques","status":"publish","type":"post","link":"https:\/\/cifar.ca\/fr\/cifarnews\/2026\/05\/19\/demystifier-les-grands-modeles-dia-pour-mieux-en-attenuer-les-risques\/","title":{"rendered":"D\u00e9mystifier les grands mod\u00e8les d\u2019IA pour mieux en att\u00e9nuer les risques"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">En d\u00e9mocratie, l\u2019IA est devenue un paradoxe difficile \u00e0 r\u00e9soudre. D\u2019un c\u00f4t\u00e9, elle peut am\u00e9liorer la vie d\u00e9mocratique en favorisant l\u2019interactivit\u00e9 des \u00e9lections, la participation citoyenne et l\u2019efficacit\u00e9 des services publics; de l\u2019autre, elle pose des risques importants, tels que la propagation des biais et la d\u00e9sinformation. L\u2019un des risques les plus s\u00e9rieux r\u00e9side peut-\u00eatre dans l\u2019immense pouvoir qu\u2019elle concentre entre les mains de quelques grandes entreprises dot\u00e9es de ressources consid\u00e9rables.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">C\u2019est pr\u00e9cis\u00e9ment ce qui motive les recherches de <a href=\"https:\/\/cifar.ca\/fr\/biographie\/colin-raffel\/\">Colin Raffel<\/a>, titulaire d\u2019une chaire en IA Canada-CIFAR et directeur associ\u00e9 de la recherche \u00e0 l\u2019Institut Vecteur. M.\u00a0Raffel est \u00e9galement professeur agr\u00e9g\u00e9 d\u2019informatique \u00e0 l\u2019Universit\u00e9 de Toronto et chercheur au sein de l\u2019\u00e9quipe de <\/span><a href=\"https:\/\/huggingface.co\/\"><span style=\"font-weight: 400;\">Hugging Face<\/span><\/a><span style=\"font-weight: 400;\">, une plateforme collaborative en ligne consacr\u00e9e aux mod\u00e8les, aux ensembles de donn\u00e9es et aux applications d\u2019IA.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Les travaux de Colin Raffel visent \u00e0 att\u00e9nuer les risques li\u00e9s \u00e0 l\u2019IA, \u00e0 d\u00e9centraliser le d\u00e9veloppement de cette technologie et \u00e0 faciliter la t\u00e2che de ceux et celles qui souhaitent concevoir des mod\u00e8les \u00e0 grande \u00e9chelle sans avoir \u00e0 s\u2019encombrer de quantit\u00e9s de donn\u00e9es d\u2019entra\u00eenement superflues ou recueillies sans consentement.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00ab\u00a0Ce qui m\u2019a motiv\u00e9, c\u2019est l\u2019inqui\u00e9tude croissante que suscite la concentration du pouvoir entre les mains d\u2019une poign\u00e9e d\u2019entreprises richissimes. Voil\u00e0 pourquoi nous misons sur des m\u00e9thodes d\u00e9centralis\u00e9es de d\u00e9veloppement de l\u2019IA \u00e0 grande \u00e9chelle. Plus l\u2019IA est devenue performante, plus mes inqui\u00e9tudes ont grandi. Mon \u00e9quipe a donc intensifi\u00e9 les efforts consacr\u00e9s \u00e0 la r\u00e9duction des risques\u00a0\u00bb, explique-t-il.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Les recherches de Colin Raffel trouvent un \u00e9cho tout particulier aujourd\u2019hui, dans un contexte marqu\u00e9 par la crainte d\u2019une p\u00e9nurie imminente de donn\u00e9es et par la multiplication des poursuites judiciaires li\u00e9es \u00e0 l\u2019utilisation non autoris\u00e9e de donn\u00e9es prot\u00e9g\u00e9es par le droit d\u2019auteur aux fins de l\u2019entra\u00eenement des grands mod\u00e8les de langage \u2013\u00a0ces syst\u00e8mes d\u2019IA avanc\u00e9s capables de comprendre, de traiter et de g\u00e9n\u00e9rer des t\u00e2ches complexes \u00e0 la mani\u00e8re des humains.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">De nombreuses entreprises soutiennent que l\u2019utilisation de donn\u00e9es non autoris\u00e9es s\u2019av\u00e8re le seul moyen d\u2019optimiser la qualit\u00e9 des mod\u00e8les de pointe et de soutenir l\u2019\u00e9volution rapide du secteur. Or, Colin Raffel et son \u00e9quipe viennent de prouver le contraire avec leur projet <\/span><a href=\"http:\/\/arxiv.org\/abs\/2506.05209\"><span style=\"font-weight: 400;\">The Common Pile<\/span><\/a><span style=\"font-weight: 400;\">.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00c0 partir d\u2019un vaste ensemble de donn\u00e9es compos\u00e9 de textes libres de droits ou du domaine public, l\u2019\u00e9quipe a entra\u00een\u00e9 une s\u00e9rie de mod\u00e8les dont les r\u00e9sultats rivalisent avec ceux de mod\u00e8les entra\u00een\u00e9s \u00e0 partir de donn\u00e9es prot\u00e9g\u00e9es. L\u2019\u00e9quipe a test\u00e9 des contenus provenant de 30\u00a0sources de divers domaines\u00a0: articles scientifiques, code informatique, ouvrages litt\u00e9raires, transcriptions audio et plus encore. Ces travaux ont \u00e9t\u00e9 salu\u00e9s comme un premier pas vers un entra\u00eenement \u00e9thique et responsable des mod\u00e8les.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">De plus, ces recherches facilitent la t\u00e2che de ceux et celles qui souhaitent faire progresser et perfectionner les syst\u00e8mes d\u2019IA.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00ab\u00a0Nous avons mis au point des m\u00e9thodes qui permettent \u00e0 des collaboratrices et collaborateurs ind\u00e9pendants de mettre leur travail en commun et d\u2019int\u00e9grer leurs modifications en continu afin d\u2019am\u00e9liorer les mod\u00e8les de mani\u00e8re d\u00e9centralis\u00e9e\u00a0\u00bb, explique-t-il.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Malgr\u00e9 ces avanc\u00e9es techniques, Colin Raffel demeure m\u00e9fiant face \u00e0 notre d\u00e9pendance croissante envers l\u2019IA. Selon lui, le fait de confier de plus en plus de t\u00e2ches manuelles et cognitives aux grands mod\u00e8les de langage peut, \u00e0 terme, engendrer des probl\u00e8mes existentiels. D\u2019ailleurs, remarque-t-il, les failles techniques \u00e0 l\u2019origine des risques existentiels et soci\u00e9taux sont souvent les m\u00eames.<\/span><\/p>\n<h3><i><span style=\"font-weight: 400;\">De la musique \u00e0 l\u2019apprentissage automatique<\/span><\/i><\/h3>\n<p><span style=\"font-weight: 400;\">L\u2019int\u00e9r\u00eat de Colin Raffel pour la recherche est n\u00e9 de son amour de la musique. \u00ab\u00a0Si je me suis lanc\u00e9 en recherche, c\u2019est parce que j\u2019\u00e9tais musicien et que je voulais d\u00e9velopper de nouveaux logiciels de musique\u00a0\u00bb, raconte-t-il. C\u2019est cette passion qui l\u2019a men\u00e9 vers la recherche de donn\u00e9es musicales, un champ interdisciplinaire qui consiste \u00e0 extraire des informations complexes de fichiers audio\u00a0\u2013 une technologie utilis\u00e9e notamment par les applications d\u2019identification de chansons et les algorithmes de recommandation.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">De l\u00e0 est n\u00e9 son int\u00e9r\u00eat pour l\u2019apprentissage automatique, en particulier pour les algorithmes n\u00e9cessitant peu de donn\u00e9es \u00e9tiquet\u00e9es.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Selon Colin Raffel, c\u2019est gr\u00e2ce au programme de chaires en IA Canada-CIFAR, \u00e0 l\u2019Institut Vecteur et \u00e0 l\u2019Universit\u00e9 de Toronto qu\u2019un \u00e9cosyst\u00e8me de collaboration aussi unique a pu voir le jour.<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Pilier de la Strat\u00e9gie pancanadienne en mati\u00e8re d\u2019IA, le programme de chaires en IA Canada-CIFAR offre la stabilit\u00e9 et le financement \u00e0 long terme n\u00e9cessaires pour permettre \u00e0 l\u2019\u00e9lite de la recherche en IA de se consacrer \u00e0 des travaux \u00e0 fort impact. \u00c0 ce jour, le programme a permis \u00e0 plus de 140\u00a0chercheuses et chercheurs de venir au Canada pour y poursuivre leurs travaux.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>En d\u00e9mocratie, l\u2019IA est devenue un paradoxe difficile \u00e0 r\u00e9soudre. D\u2019un c\u00f4t\u00e9, elle peut am\u00e9liorer la vie d\u00e9mocratique en favorisant l\u2019interactivit\u00e9 des \u00e9lections, la participation [&hellip;]<\/p>\n","protected":false},"author":74,"featured_media":65814,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[5929,1771,3972],"tags":[6587,4402,6469,6672,4661,6106],"class_list":["post-65790","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-chaire-en-ia-canada-cifar","category-nouvelles","category-strategie-pancanadienne-en-matiere-dia","tag-canada-cifar-ai-chair","tag-chaires-en-ia-canada-cifar","tag-cifar-fr","tag-colin-raffel","tag-universite-de-toronto","tag-vector-institute-fr"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>CIFAR<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cifar.ca\/fr\/cifarnews\/2026\/05\/19\/demystifier-les-grands-modeles-dia-pour-mieux-en-attenuer-les-risques\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"D\u00e9mystifier les grands mod\u00e8les d\u2019IA pour mieux en att\u00e9nuer les risques - CIFAR\" \/>\n<meta property=\"og:description\" content=\"En d\u00e9mocratie, l\u2019IA est devenue un paradoxe difficile \u00e0 r\u00e9soudre. 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