En intelligence artificielle et plus particuli\u00e8rement en apprentissage par renforcement, le mod\u00e8le de r\u00e9compense guide l’apprentissage des agents IA. Qu’est-ce qu’un mod\u00e8le de r\u00e9compense ? C’est une fonction qui \u00e9value les actions d’une IA et lui attribue un score, indiquant si ces actions sont bonnes ou mauvaises.<\/p>\n
Un mod\u00e8le de r\u00e9compense fonctionne comme un syst\u00e8me de notation pour l’IA. Imaginez un chien que vous dressez\u00a0: chaque fois qu’il ob\u00e9it \u00e0 une commande, vous lui donnez une friandise (r\u00e9compense positive). S’il fait une b\u00eatise, vous lui dites \u00ab\u00a0non\u00a0\u00bb (r\u00e9compense n\u00e9gative). Le mod\u00e8le de r\u00e9compense fait la m\u00eame chose pour une IA\u00a0: il lui attribue des scores plus \u00e9lev\u00e9s pour les actions souhait\u00e9es et des scores plus bas pour les actions ind\u00e9sirables. L’IA apprend progressivement \u00e0 maximiser sa r\u00e9compense en ajustant son comportement.<\/p>\n
Le mod\u00e8le de r\u00e9compense est crucial car il d\u00e9finit l’objectif de l’IA. Sans lui, l’IA ne saurait pas ce qu’elle doit faire. En prompt engineering, un bon mod\u00e8le de r\u00e9compense permet d’obtenir des r\u00e9ponses plus pertinentes et plus coh\u00e9rentes avec les instructions. Par exemple, pour un chatbot, le mod\u00e8le de r\u00e9compense pourrait favoriser les r\u00e9ponses polies, informatives et utiles, tandis qu’il p\u00e9naliserait les r\u00e9ponses incorrectes, offensantes ou hors sujet. C’est gr\u00e2ce \u00e0 ce syst\u00e8me de r\u00e9compense que l’IA apprend \u00e0 g\u00e9n\u00e9rer le type de r\u00e9ponses que nous attendons.<\/p>\n
En intelligence artificielle et plus particuli\u00e8rement en apprentissage par renforcement, le mod\u00e8le de r\u00e9compense guide l’apprentissage des agents IA. Qu’est-ce qu’un mod\u00e8le de r\u00e9compense ? C’est une fonction qui \u00e9value les actions d’une IA et lui attribue un score, indiquant si ces actions sont bonnes ou mauvaises. Comment fonctionne un mod\u00e8le de r\u00e9compense ? Un […]<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[157],"tags":[529,63,347,531,530,12],"class_list":["post-909","post","type-post","status-publish","format-standard","hentry","category-m","tag-agent-ia","tag-apprentissage-par-renforcement","tag-fonction-de-recompense","tag-modele-de-recompense","tag-optimisation-des-politiques","tag-prompt-engineering"],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false},"uagb_author_info":{"display_name":"","author_link":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/author\/"},"uagb_comment_info":0,"uagb_excerpt":"En intelligence artificielle et plus particuli\u00e8rement en apprentissage par renforcement, le mod\u00e8le de r\u00e9compense guide l’apprentissage des agents IA. Qu’est-ce qu’un mod\u00e8le de r\u00e9compense ? C’est une fonction qui \u00e9value les actions d’une IA et lui attribue un score, indiquant si ces actions sont bonnes ou mauvaises. Comment fonctionne un mod\u00e8le de r\u00e9compense ? Un\u2026","_links":{"self":[{"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/posts\/909","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/comments?post=909"}],"version-history":[{"count":1,"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/posts\/909\/revisions"}],"predecessor-version":[{"id":995,"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/posts\/909\/revisions\/995"}],"wp:attachment":[{"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/media?parent=909"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/categories?post=909"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/tags?post=909"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}