{"id":63753,"date":"2025-12-03T08:00:36","date_gmt":"2025-12-03T13:00:36","guid":{"rendered":"https:\/\/cifar.ca\/?p=63753"},"modified":"2025-12-18T01:26:59","modified_gmt":"2025-12-18T06:26:59","slug":"rendre-lia-plus-sure-grace-a-des-methodes-devaluation-avancees","status":"publish","type":"post","link":"https:\/\/cifar.ca\/fr\/cifarnews\/2025\/12\/03\/rendre-lia-plus-sure-grace-a-des-methodes-devaluation-avancees\/","title":{"rendered":"Rendre l\u2019IA plus s\u00fbre gr\u00e2ce \u00e0 des m\u00e9thodes d\u2019\u00e9valuation avanc\u00e9es"},"content":{"rendered":"<h2><span style=\"color: #da291c;\"><strong>Comment des titulaires de chaires en IA Canada-CIFAR d\u00e9finissent un nouveau barom\u00e8tre de s\u00e9curit\u00e9<\/strong><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Plus les mod\u00e8les d\u2019IA se r\u00e9pandent et se perfectionnent, plus il est essentiel d\u2019en garantir l\u2019exactitude, l\u2019impartialit\u00e9 et l\u2019alignement sur les valeurs humaines. En l\u2019absence de cadres standardis\u00e9s d\u2019\u00e9valuation de la s\u00e9curit\u00e9, et en raison de l\u2019\u00e9volution fulgurante des capacit\u00e9s des mod\u00e8les, cette mission n\u2019est toutefois pas \u00e0 la port\u00e9e du premier venu.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Les tests d\u2019\u00e9valuation de la s\u00e9curit\u00e9 servent \u00e0 s\u2019assurer que les mod\u00e8les d\u2019IA de pointe (c\u2019est-\u00e0-dire les mod\u00e8les capables d\u2019accomplir une multitude de t\u00e2ches d\u00e9passant souvent les facult\u00e9s humaines) sont utiles, pr\u00e9cis et sans danger pour l\u2019humanit\u00e9 avant qu\u2019ils ne soient mis \u00e0 la disposition du public. Il s\u2019agit d\u2019une \u00e9tape cruciale du processus de d\u00e9veloppement, car le moindre d\u00e9faut dans le fonctionnement d\u2019un mod\u00e8le peut mener \u00e0 de la d\u00e9sinformation, \u00e0 des biais et \u00e0 plusieurs autres cons\u00e9quences susceptibles de toucher des millions de personnes. Dans sa plus r\u00e9cente \u00e9dition, le rapport intitul\u00e9 <\/span><a href=\"https:\/\/internationalaisafetyreport.org\/publication\/first-key-update-capabilities-and-risk-implications\"><span style=\"font-weight: 400;\">International AI Safety Report <\/span><\/a><span style=\"font-weight: 400;\">reconna\u00eet la n\u00e9cessit\u00e9 d\u2019am\u00e9liorer les m\u00e9thodes d\u2019\u00e9valuation, un m\u00e9canisme indispensable pour r\u00e9soudre les enjeux li\u00e9s \u00e0 la s\u00e9curit\u00e9 de l\u2019IA.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Deux titulaires de chaires en IA Canada-CIFAR affili\u00e9s \u00e0 l\u2019Institut Vecteur, <\/span><a href=\"https:\/\/cifar.ca\/fr\/biographie\/wenhu-chen\/\"><span style=\"font-weight: 400;\">Wenhu Chen<\/span><\/a><span style=\"font-weight: 400;\"> et <\/span><a href=\"https:\/\/cifar.ca\/fr\/biographie\/victor-zhong\/\"><span style=\"font-weight: 400;\">Victor Zhong<\/span><\/a><span style=\"font-weight: 400;\">, d\u00e9veloppent chacun des m\u00e9thodes d\u2019\u00e9valuation avanc\u00e9es qui gagnent en notori\u00e9t\u00e9 dans le secteur en raison de leur adaptabilit\u00e9 et de leur robustesse. En s\u2019ing\u00e9niant \u00e0 cr\u00e9er de meilleurs outils d\u2019\u00e9valuation, ils contribuent \u00e0 fa\u00e7onner un \u00e9cosyst\u00e8me canadien de l\u2019IA plus solide et r\u00e9silient et \u00e0 positionner le Canada comme un chef de file de la s\u00e9curit\u00e9 de l\u2019IA\u00a0\u2013 une \u00e9tape importante pour gagner la confiance du public et favoriser l\u2019adoption \u00e0 grande \u00e9chelle de l\u2019IA.<\/span><\/p>\n<h2><strong>Wenhu Chen, MMLU-Pro<\/strong><\/h2>\n<p><span style=\"font-weight: 400;\">De l\u2019avis du professeur adjoint \u00e0 l\u2019Universit\u00e9 de Waterloo <\/span><a href=\"https:\/\/cifar.ca\/fr\/biographie\/wenhu-chen\/\"><span style=\"font-weight: 400;\">Wenhu Chen<\/span><\/a><span style=\"font-weight: 400;\">, l\u2019un des principaux d\u00e9fauts des ensembles de tests actuels tient \u00e0 leur manque de diversit\u00e9 th\u00e9matique. La plupart se concentrent sur une poign\u00e9e de sujets comme les math\u00e9matiques et la programmation, au d\u00e9triment d\u2019autres th\u00e9matiques que l\u2019IA doit pourtant ma\u00eetriser.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">La solution, soutient M.\u00a0Chen, consiste \u00e0 se concentrer davantage sur ces domaines sp\u00e9cialis\u00e9s et \u00e0 les inclure dans les \u00e9valuations actuelles, mais aussi \u00e0 accro\u00eetre la diversit\u00e9 des ensembles de tests que nous utilisons. Comme la plupart des tests actuels sont quasi identiques, \u00e9valuer un mod\u00e8le \u00e0 partir de plusieurs d\u2019entre eux devient inutilement r\u00e9p\u00e9titif. Dans ce contexte, M.\u00a0Chen cherche \u00e0 aider les \u00e9quipes de d\u00e9veloppement \u00e0 diversifier leurs tests de performances afin que ceux-ci recouvrent davantage de capacit\u00e9s, de domaines et de comp\u00e9tences.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Par ailleurs, Wenhu Chen s\u2019int\u00e9resse \u00e0 la possibilit\u00e9 que les mod\u00e8les r\u00e9ussissent \u00e0 donner les bonnes r\u00e9ponses simplement en les devinant. \u00ab\u00a0Il arrive que le mod\u00e8le ignore comment r\u00e9soudre un probl\u00e8me, mais qu\u2019il pressente qu\u2019une solution est meilleure qu\u2019une autre et qu\u2019il choisisse la bonne r\u00e9ponse malgr\u00e9 tout. Il s\u2019agit selon nous d\u2019un enjeu assez s\u00e9rieux, puisque cela peut nous amener \u00e0 surestimer les capacit\u00e9s d\u2019un mod\u00e8le\u00a0\u00bb, souligne-t-il.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Cet enjeu, Wenhu Chen en a tenu compte dans la conception de son ensemble de tests appel\u00e9 MMLU-Pro. Jusqu\u2019\u00e0 pr\u00e9sent, les tests se limitaient \u00e0 quatre\u00a0choix de r\u00e9ponse; M.\u00a0Chen et son \u00e9quipe ont \u00e9tendu ce nombre \u00e0 dix afin de relever le niveau de difficult\u00e9. \u00ab\u00a0La possibilit\u00e9 que le mod\u00e8le trouve la bonne r\u00e9ponse par pure conjecture est ainsi consid\u00e9rablement r\u00e9duite\u00a0\u00bb, explique-t-il. Cette m\u00e9thode a grandement am\u00e9lior\u00e9 la qualit\u00e9 des tests, qui sont maintenant utilis\u00e9s par des g\u00e9ants comme OpenAI, Google et Anthropic.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Aux dires de Wenhu Chen, l\u2019am\u00e9lioration des \u00e9valuations permettra aux \u00e9quipes de d\u00e9veloppement de prendre des d\u00e9cisions plus \u00e9clair\u00e9es quant \u00e0 l\u2019entra\u00eenement et \u00e0 la s\u00e9curit\u00e9 des mod\u00e8les. Ces progr\u00e8s contribueront, \u00e0 terme, \u00e0 la conception de produits plus performants et plus s\u00fbrs pour les utilisatrices et utilisateurs finaux.<\/span><\/p>\n<h2><strong>Victor Zhong \u2013 OS World<\/strong><\/h2>\n<p><span style=\"font-weight: 400;\">De nos jours, les mod\u00e8les d\u2019IA fondamentaux surpassent rapidement les tests statiques, d\u2019o\u00f9 la n\u00e9cessit\u00e9 pour des d\u00e9veloppeurs comme le professeur adjoint \u00e0 l\u2019Universit\u00e9 de Waterloo <\/span><a href=\"https:\/\/cifar.ca\/fr\/biographie\/victor-zhong\/\"><span style=\"font-weight: 400;\">Victor Zhong<\/span><\/a><span style=\"font-weight: 400;\"> de concevoir des tests dynamiques qui \u00e9voluent au m\u00eame rythme que les capacit\u00e9s des mod\u00e8les. Si les tests statiques fournissent un ensemble fixe de t\u00e2ches \u00e0 \u00e9valuer, les tests dynamiques sont con\u00e7us pour emp\u00eacher les mod\u00e8les de m\u00e9moriser des d\u00e9fis particuliers ou d\u2019optimiser leur capacit\u00e9 \u00e0 les r\u00e9soudre.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">C\u2019est ce besoin d\u2019\u00e9valuations plus rigoureuses qui a amen\u00e9 Victor Zhong \u00e0 d\u00e9velopper OS\u00a0World, une plateforme utilisant une machine virtuelle pour tester les mod\u00e8les d\u2019IA selon des sc\u00e9narios plus g\u00e9n\u00e9raux et r\u00e9alistes. \u00ab\u00a0L\u2019un des meilleurs moyens de tester les capacit\u00e9s de ces mod\u00e8les est simplement d\u2019utiliser l\u2019ordinateur comme le feraient des humains\u00a0\u00bb, explique-t-il. OS\u00a0World peut accomplir des t\u00e2ches ouvertes qui sont g\u00e9n\u00e9ralement effectu\u00e9es sur un ordinateur, comme naviguer sur Internet, utiliser des logiciels ou cr\u00e9er des documents.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Victor Zhong et son \u00e9quipe ont ensuite \u00e9labor\u00e9 ce qu\u2019ils appellent un \u00ab\u00a0forum d\u2019agents informatiques\u00a0\u00bb. Dans ce lieu virtuel, un groupe de personnes soumet des instructions \u00e0 un mod\u00e8le d\u2019IA, tandis qu\u2019un autre groupe en \u00e9value les performances. Il en r\u00e9sulte un test de performances \u00ab\u00a0\u00e9volutif\u00a0\u00bb qui conf\u00e8re \u00e0 OS\u00a0World la capacit\u00e9 \u00e0 s\u2019adapter et \u00e0 s\u2019am\u00e9liorer sans cesse.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Cette approche red\u00e9finit la norme en mati\u00e8re de techniques d\u2019\u00e9valuation, si bien qu\u2019elle constitue \u00e0 pr\u00e9sent le test de performances privil\u00e9gi\u00e9 par OpenAI et Anthropic. Il s\u2019agit d\u2019une avanc\u00e9e aux retomb\u00e9es mondiales, puisque le cadre d\u2019\u00e9valuation qui en d\u00e9coule est beaucoup plus efficace pour mesurer l\u2019\u00e9volution des mod\u00e8les d\u2019IA de pointe.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Comment des titulaires de chaires en IA Canada-CIFAR d\u00e9finissent un nouveau barom\u00e8tre de s\u00e9curit\u00e9 Plus les mod\u00e8les d\u2019IA se r\u00e9pandent et se perfectionnent, plus il [&hellip;]<\/p>\n","protected":false},"author":63,"featured_media":63774,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[5929,933,1771,6478,6162,3972,5872],"tags":[6280,6163,6538,6164,6147,6076],"class_list":["post-63753","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-chaire-en-ia-canada-cifar","category-ia-et-societe","category-nouvelles","category-pcais-home-featured-fr","category-securite-de-l-ia","category-strategie-pancanadienne-en-matiere-dia","category-z-cifar-pan-canadian-ai-strategy-and-news-fr","tag-canada-cifar-ai-chair","tag-linstitut-canadien-de-la-securite-de-lia","tag-programme-de-recherche-de-linstitut-canadien-de-la-securite-de-lintelligence-artificielle-au-cifar","tag-securite-de-lia","tag-victor-zhong-fr","tag-wenhu-chen-fr"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - 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