{"id":70967,"date":"2025-09-03T12:00:00","date_gmt":"2025-09-03T12:00:00","guid":{"rendered":"https:\/\/www.africa-press.net\/senegal\/politique\/leffondrement-pas-si-ineluctable-des-ia"},"modified":"2025-09-03T21:34:01","modified_gmt":"2025-09-03T21:34:01","slug":"leffondrement-pas-si-ineluctable-des-ia","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/leffondrement-pas-si-ineluctable-des-ia","title":{"rendered":"L\u2019Effondrement pas si In\u00e9luctable des IA"},"content":{"rendered":"<p><span style=\"color: #ff6600\"><strong>Africa-Press &#8211; Senegal. <\/strong><\/span>Et si, malgre\u0301 leurs performances e\u0301poustouflantes, les intelligences artificielles (IA) ge\u0301ne\u0301ratives actuelles e\u0301taient voue\u0301es a\u0300 de\u0301cliner? En 2024, dans Nature, des chercheurs des universite\u0301s de Cambridge et Oxford (Royaume-Uni) avanc\u0327aient la notion d&rsquo; \u00bbeffondrement des mode\u0300les \u00ab. A\u0300 partir de tests mene\u0301s avec GPT, ils montraient qu\u2019un \u00ab usage syste\u0301matique de contenus ge\u0301ne\u0301re\u0301s dans l\u2019apprentissage provoque des de\u0301faillances irre\u0301versibles dans les re\u0301sultats des mode\u0300les de langage \u00bb.<\/p>\n<p>En lui-me\u0302me, le sujet remonte aux mode\u0300les de ge\u0301ne\u0301ration d\u2019images a\u0300 partir d\u2019instruction en langage naturel, tels Dall-E, Midjourney ou Stable Diffusion. \u00ab La question ne s\u2019e\u0301tait pas pose\u0301e avant l\u2019apparition de ces outils, entre 2021 et 2022, car les IA ge\u0301ne\u0301ratives existantes n\u2019e\u0301taient pas si performantes \u00ab , pre\u0301cise Quentin Bertrand, charge\u0301 de recherche a\u0300 l\u2019Inria de Lyon et au laboratoire Hubert-Curien. Dans un article cosigne\u0301 avec Gauthier Gidel, professeur a\u0300 l\u2019universite\u0301 de Montre\u0301al (Canada), il relativise ce sce\u0301nario catastrophe.<\/p>\n<p>En testant trois mode\u0300les de ge\u0301ne\u0301ration d\u2019images, les deux chercheurs ont e\u0301tabli qu\u2019il e\u0301tait possible de les re\u0301entrai\u0302ner sur leurs propres donne\u0301es ge\u0301ne\u0301re\u0301es sans de\u0301gradation significative des re\u0301sultats, pour peu que l\u2019on conserve une fraction limite de donne\u0301es re\u0301elles dans l\u2019apprentissage. \u00ab Plus les donne\u0301es de synthe\u0300se sont de bonne qualite\u0301, moins on a besoin de donne\u0301es re\u0301elles, ajoute Quentin Bertrand. Mais il faut aussi tenir compte de la qualite\u0301 du mode\u0300le lui-me\u0302me: si le mode\u0300le d\u2019IA est bien conc\u0327u, on peut re\u0301duire le recours aux donne\u0301es re\u0301elles. \u00bb<\/p>\n<p><b>L\u2019IA propose une re\u0300gle de de\u0301tection a\u0300 l\u2019analyste<\/b><\/p>\n<p>En mars, une me\u0301ta-e\u0301tude de chercheurs des universite\u0301s Stanford et Harvard (E\u0301tats-Unis) tempe\u0301rait a\u0300 son tour cette notion d\u2019effondrement. Selon les auteurs, la litte\u0301rature scientifique, les commentaires d\u2019experts ou la vulgarisation scientifique auraient surtout fait \u0153uvre de mauvaises interpre\u0301tations et de simplifications. Ils ont aussi note\u0301 que, selon les sources, la suppose\u0301e de\u0301gradation des performances des IA ne recouvre pas la me\u0302me chose. Ils en ont me\u0302me identifie\u0301 huit de\u0301finitions diffe\u0301rentes, dont certaines seraient trop vagues. Ils re\u0301cusent tout fatalisme, estimant que certains phe\u0301nome\u0300nes pointe\u0301s du doigt, effectivement dus a\u0300 l\u2019usage de donne\u0301es synthe\u0301tiques, seraient en fait e\u0301vitables.<\/p>\n<p>Pour Gauthier Gidel, la vraie question est celle de la diversite\u0301 des contenus. \u00ab Les e\u0301le\u0301ments les moins probables figurant dans le corpus d\u2019entrai\u0302nement sont les moins souvent ge\u0301ne\u0301re\u0301s ; en particulier, ils pourraient e\u0302tre sous-repre\u0301sente\u0301s dans les contenus qui serviront a\u0300 entrai\u0302ner la nouvelle ge\u0301ne\u0301ration de mode\u0300les, ce qui contribuerait a\u0300 leur lent oubli. C\u2019est un cercle vicieux: une fois oublie\u0301, un type de contenu ne peut e\u0302tre re\u0301appris. \u00bb L\u2019enjeu a\u0300 venir sera de montrer qu\u2019il est possible de garder la diversite\u0301 des donne\u0301es avec des contenus synthe\u0301tiques.<\/p>\n<p><strong>Pour plus d&rsquo;informations et d&rsquo;analyses sur la <span style=\"color: #ff6600\">Senegal<\/span>, suivez <span style=\"color: #ff6600\">Africa-Press<\/span><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Africa-Press &#8211; Senegal. Et si, malgre\u0301 leurs performances e\u0301poustouflantes, les intelligences artificielles (IA) ge\u0301ne\u0301ratives actuelles e\u0301taient voue\u0301es a\u0300 de\u0301cliner? En 2024, dans Nature, des chercheurs des universite\u0301s de Cambridge et Oxford (Royaume-Uni) avanc\u0327aient la notion d&rsquo; \u00bbeffondrement des mode\u0300les \u00ab. A\u0300 partir de tests mene\u0301s avec GPT, ils montraient qu\u2019un \u00ab usage syste\u0301matique de contenus [&hellip;]<\/p>\n","protected":false},"author":82,"featured_media":70966,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[44],"class_list":["post-70967","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-senegal-2"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.1 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>L\u2019Effondrement pas si In\u00e9luctable des IA - Senegal<\/title>\n<meta name=\"description\" content=\"Et si, malgre\u0301 leurs performances e\u0301poustouflantes, les intelligences artificielles (IA) ge\u0301ne\u0301ratives actuelles e\u0301taien ...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/leffondrement-pas-si-ineluctable-des-ia\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"L\u2019Effondrement pas si In\u00e9luctable des IA\" \/>\n<meta property=\"og:description\" content=\"Et si, malgre\u0301 leurs performances e\u0301poustouflantes, les intelligences artificielles (IA) ge\u0301ne\u0301ratives actuelles e\u0301taien ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/leffondrement-pas-si-ineluctable-des-ia\" \/>\n<meta property=\"og:site_name\" content=\"Senegal\" \/>\n<meta property=\"article:published_time\" content=\"2025-09-03T12:00:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-09-03T21:34:01+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/static.africa-press.net\/senegal\/sites\/13\/2025\/09\/sm_1756963268.572778.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1280\" \/>\n\t<meta property=\"og:image:height\" content=\"720\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"cfeditorfr\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"cfeditorfr\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/leffondrement-pas-si-ineluctable-des-ia#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/leffondrement-pas-si-ineluctable-des-ia\"},\"author\":{\"name\":\"cfeditorfr\",\"@id\":\"https:\/\/www.africa-press.net\/senegal\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1\"},\"headline\":\"L\u2019Effondrement pas si In\u00e9luctable des IA\",\"datePublished\":\"2025-09-03T12:00:00+00:00\",\"dateModified\":\"2025-09-03T21:34:01+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/leffondrement-pas-si-ineluctable-des-ia\"},\"wordCount\":560,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/leffondrement-pas-si-ineluctable-des-ia#primaryimage\"},\"thumbnailUrl\":\"https:\/\/static.africa-press.net\/senegal\/sites\/13\/2025\/09\/sm_1756963268.572778.jpg\",\"keywords\":[\"Senegal\"],\"articleSection\":[\"Divers\",\"Toutes les actualit\u00e9s\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/leffondrement-pas-si-ineluctable-des-ia#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/leffondrement-pas-si-ineluctable-des-ia\",\"url\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/leffondrement-pas-si-ineluctable-des-ia\",\"name\":\"L\u2019Effondrement pas si In\u00e9luctable des IA - 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